direct: add .pylintrc, perform major code cleanup pass

Closes #989

Co-authored-by: Daniel Stokes <[email protected]>

.pylintrc

@@ -0,0 +1,533 @@
+[MASTER]
+
+# A comma-separated list of package or module names from where C extensions may
+# be loaded. Extensions are loading into the active Python interpreter and may
+# run arbitrary code.
+extension-pkg-whitelist=panda3d
+
+# Specify a score threshold to be exceeded before program exits with error.
+fail-under=10.0
+
+# Add files or directories to the blacklist. They should be base names, not
+# paths.
+ignore=thirdparty
+
+# Add files or directories matching the regex patterns to the blacklist. The
+# regex matches against base names, not paths.
+ignore-patterns=
+
+# Python code to execute, usually for sys.path manipulation such as
+# pygtk.require().
+#init-hook=
+
+# Use multiple processes to speed up Pylint. Specifying 0 will auto-detect the
+# number of processors available to use.
+jobs=1
+
+# Control the amount of potential inferred values when inferring a single
+# object. This can help the performance when dealing with large functions or
+# complex, nested conditions.
+limit-inference-results=100
+
+# List of plugins (as comma separated values of python module names) to load,
+# usually to register additional checkers.
+load-plugins=
+
+# Pickle collected data for later comparisons.
+persistent=yes
+
+# When enabled, pylint would attempt to guess common misconfiguration and emit
+# user-friendly hints instead of false-positive error messages.
+suggestion-mode=yes
+
+# Allow loading of arbitrary C extensions. Extensions are imported into the
+# active Python interpreter and may run arbitrary code.
+unsafe-load-any-extension=no
+
+
+[MESSAGES CONTROL]
+
+# Only show warnings with the listed confidence levels. Leave empty to show
+# all. Valid levels: HIGH, INFERENCE, INFERENCE_FAILURE, UNDEFINED.
+confidence=
+
+# Disable the message, report, category or checker with the given id(s). You
+# can either give multiple identifiers separated by comma (,) or put this
+# option multiple times (only on the command line, not in the configuration
+# file where it should appear only once). You can also use "--disable=all" to
+# disable everything first and then reenable specific checks. For example, if
+# you want to run only the similarities checker, you can use "--disable=all
+# --enable=similarities". If you want to run only the classes checker, but have
+# no Warning level messages displayed, use "--disable=all --enable=classes
+# --disable=W".
+disable=attribute-defined-outside-init,
+        broad-except,
+        comparison-with-callable,
+        dangerous-default-value,
+        global-statement,
+        import-outside-toplevel,
+        invalid-name,
+        line-too-long,
+        misplaced-comparison-constant,
+        missing-class-docstring,
+        missing-function-docstring,
+        missing-module-docstring,
+        protected-access,
+        r,
+        raise-missing-from,
+        redefined-builtin,
+        too-many-lines,
+        unused-argument,
+        unused-variable,
+        unused-wildcard-import,
+        using-constant-test,
+        wildcard-import,
+        wrong-import-order,
+        wrong-import-position
+
+# Enable the message, report, category or checker with the given id(s). You can
+# either give multiple identifier separated by comma (,) or put this option
+# multiple time (only on the command line, not in the configuration file where
+# it should appear only once). See also the "--disable" option for examples.
+enable=c-extension-no-member
+
+
+[REPORTS]
+
+# Python expression which should return a score less than or equal to 10. You
+# have access to the variables 'error', 'warning', 'refactor', and 'convention'
+# which contain the number of messages in each category, as well as 'statement'
+# which is the total number of statements analyzed. This score is used by the
+# global evaluation report (RP0004).
+evaluation=10.0 - ((float(5 * error + warning + refactor + convention) / statement) * 10)
+
+# Template used to display messages. This is a python new-style format string
+# used to format the message information. See doc for all details.
+#msg-template=
+
+# Set the output format. Available formats are text, parseable, colorized, json
+# and msvs (visual studio). You can also give a reporter class, e.g.
+# mypackage.mymodule.MyReporterClass.
+output-format=text
+
+# Tells whether to display a full report or only the messages.
+reports=no
+
+# Activate the evaluation score.
+score=yes
+
+
+[REFACTORING]
+
+# Maximum number of nested blocks for function / method body
+max-nested-blocks=5
+
+# Complete name of functions that never returns. When checking for
+# inconsistent-return-statements if a never returning function is called then
+# it will be considered as an explicit return statement and no message will be
+# printed.
+never-returning-functions=sys.exit
+
+
+[FORMAT]
+
+# Expected format of line ending, e.g. empty (any line ending), LF or CRLF.
+expected-line-ending-format=LF
+
+# Regexp for a line that is allowed to be longer than the limit.
+ignore-long-lines=^\s*(# )?<?https?://\S+>?$
+
+# Number of spaces of indent required inside a hanging or continued line.
+indent-after-paren=4
+
+# String used as indentation unit. This is usually "    " (4 spaces) or "\t" (1
+# tab).
+indent-string='    '
+
+# Maximum number of characters on a single line.
+max-line-length=100
+
+# Maximum number of lines in a module.
+max-module-lines=1000
+
+# Allow the body of a class to be on the same line as the declaration if body
+# contains single statement.
+single-line-class-stmt=no
+
+# Allow the body of an if to be on the same line as the test if there is no
+# else.
+single-line-if-stmt=no
+
+
+[SPELLING]
+
+# Limits count of emitted suggestions for spelling mistakes.
+max-spelling-suggestions=4
+
+# Spelling dictionary name. Available dictionaries: none. To make it work,
+# install the python-enchant package.
+spelling-dict=
+
+# List of comma separated words that should not be checked.
+spelling-ignore-words=
+
+# A path to a file that contains the private dictionary; one word per line.
+spelling-private-dict-file=
+
+# Tells whether to store unknown words to the private dictionary (see the
+# --spelling-private-dict-file option) instead of raising a message.
+spelling-store-unknown-words=no
+
+
+[TYPECHECK]
+
+# List of decorators that produce context managers, such as
+# contextlib.contextmanager. Add to this list to register other decorators that
+# produce valid context managers.
+contextmanager-decorators=contextlib.contextmanager
+
+# List of members which are set dynamically and missed by pylint inference
+# system, and so shouldn't trigger E1101 when accessed. Python regular
+# expressions are accepted.
+generated-members=
+
+# Tells whether missing members accessed in mixin class should be ignored. A
+# mixin class is detected if its name ends with "mixin" (case insensitive).
+ignore-mixin-members=yes
+
+# Tells whether to warn about missing members when the owner of the attribute
+# is inferred to be None.
+ignore-none=yes
+
+# This flag controls whether pylint should warn about no-member and similar
+# checks whenever an opaque object is returned when inferring. The inference
+# can return multiple potential results while evaluating a Python object, but
+# some branches might not be evaluated, which results in partial inference. In
+# that case, it might be useful to still emit no-member and other checks for
+# the rest of the inferred objects.
+ignore-on-opaque-inference=yes
+
+# List of class names for which member attributes should not be checked (useful
+# for classes with dynamically set attributes). This supports the use of
+# qualified names.
+ignored-classes=optparse.Values,thread._local,_thread._local,direct.showbase.PythonUtil.ScratchPad
+
+# List of module names for which member attributes should not be checked
+# (useful for modules/projects where namespaces are manipulated during runtime
+# and thus existing member attributes cannot be deduced by static analysis). It
+# supports qualified module names, as well as Unix pattern matching.
+ignored-modules=
+
+# Show a hint with possible names when a member name was not found. The aspect
+# of finding the hint is based on edit distance.
+missing-member-hint=yes
+
+# The minimum edit distance a name should have in order to be considered a
+# similar match for a missing member name.
+missing-member-hint-distance=1
+
+# The total number of similar names that should be taken in consideration when
+# showing a hint for a missing member.
+missing-member-max-choices=1
+
+# List of decorators that change the signature of a decorated function.
+signature-mutators=
+
+
+[SIMILARITIES]
+
+# Ignore comments when computing similarities.
+ignore-comments=yes
+
+# Ignore docstrings when computing similarities.
+ignore-docstrings=yes
+
+# Ignore imports when computing similarities.
+ignore-imports=no
+
+# Minimum lines number of a similarity.
+min-similarity-lines=4
+
+
+[VARIABLES]
+
+# List of additional names supposed to be defined in builtins. Remember that
+# you should avoid defining new builtins when possible.
+additional-builtins=base,simbase,__dev__,onScreenDebug,globalClock,render,hidden,cluster
+
+# Tells whether unused global variables should be treated as a violation.
+allow-global-unused-variables=yes
+
+# List of strings which can identify a callback function by name. A callback
+# name must start or end with one of those strings.
+callbacks=cb_,
+          _cb
+
+# A regular expression matching the name of dummy variables (i.e. expected to
+# not be used).
+dummy-variables-rgx=_+$|(_[a-zA-Z0-9_]*[a-zA-Z0-9]+?$)|dummy|^ignored_|^unused_
+
+# Argument names that match this expression will be ignored. Default to name
+# with leading underscore.
+ignored-argument-names=_.*|^ignored_|^unused_
+
+# Tells whether we should check for unused import in __init__ files.
+init-import=no
+
+# List of qualified module names which can have objects that can redefine
+# builtins.
+redefining-builtins-modules=six.moves,past.builtins,future.builtins,builtins,io
+
+
+[MISCELLANEOUS]
+
+# List of note tags to take in consideration, separated by a comma.
+notes=FIXME,
+      XXX,
+      TODO
+
+# Regular expression of note tags to take in consideration.
+#notes-rgx=
+
+
+[BASIC]
+
+# Naming style matching correct argument names.
+argument-naming-style=snake_case
+
+# Regular expression matching correct argument names. Overrides argument-
+# naming-style.
+#argument-rgx=
+
+# Naming style matching correct attribute names.
+attr-naming-style=snake_case
+
+# Regular expression matching correct attribute names. Overrides attr-naming-
+# style.
+#attr-rgx=
+
+# Bad variable names which should always be refused, separated by a comma.
+bad-names=foo,
+          bar,
+          baz,
+          toto,
+          tutu,
+          tata
+
+# Bad variable names regexes, separated by a comma. If names match any regex,
+# they will always be refused
+bad-names-rgxs=
+
+# Naming style matching correct class attribute names.
+class-attribute-naming-style=any
+
+# Regular expression matching correct class attribute names. Overrides class-
+# attribute-naming-style.
+#class-attribute-rgx=
+
+# Naming style matching correct class names.
+class-naming-style=PascalCase
+
+# Regular expression matching correct class names. Overrides class-naming-
+# style.
+#class-rgx=
+
+# Naming style matching correct constant names.
+const-naming-style=UPPER_CASE
+
+# Regular expression matching correct constant names. Overrides const-naming-
+# style.
+#const-rgx=
+
+# Minimum line length for functions/classes that require docstrings, shorter
+# ones are exempt.
+docstring-min-length=-1
+
+# Naming style matching correct function names.
+function-naming-style=snake_case
+
+# Regular expression matching correct function names. Overrides function-
+# naming-style.
+#function-rgx=
+
+# Good variable names which should always be accepted, separated by a comma.
+good-names=i,
+           j,
+           k,
+           ex,
+           Run,
+           _
+
+# Good variable names regexes, separated by a comma. If names match any regex,
+# they will always be accepted
+good-names-rgxs=
+
+# Include a hint for the correct naming format with invalid-name.
+include-naming-hint=no
+
+# Naming style matching correct inline iteration names.
+inlinevar-naming-style=any
+
+# Regular expression matching correct inline iteration names. Overrides
+# inlinevar-naming-style.
+#inlinevar-rgx=
+
+# Naming style matching correct method names.
+method-naming-style=snake_case
+
+# Regular expression matching correct method names. Overrides method-naming-
+# style.
+#method-rgx=
+
+# Naming style matching correct module names.
+module-naming-style=snake_case
+
+# Regular expression matching correct module names. Overrides module-naming-
+# style.
+#module-rgx=
+
+# Colon-delimited sets of names that determine each other's naming style when
+# the name regexes allow several styles.
+name-group=
+
+# Regular expression which should only match function or class names that do
+# not require a docstring.
+no-docstring-rgx=^_
+
+# List of decorators that produce properties, such as abc.abstractproperty. Add
+# to this list to register other decorators that produce valid properties.
+# These decorators are taken in consideration only for invalid-name.
+property-classes=abc.abstractproperty
+
+# Naming style matching correct variable names.
+variable-naming-style=snake_case
+
+# Regular expression matching correct variable names. Overrides variable-
+# naming-style.
+#variable-rgx=
+
+
+[LOGGING]
+
+# The type of string formatting that logging methods do. `old` means using %
+# formatting, `new` is for `{}` formatting.
+logging-format-style=old
+
+# Logging modules to check that the string format arguments are in logging
+# function parameter format.
+logging-modules=logging
+
+
+[STRING]
+
+# This flag controls whether inconsistent-quotes generates a warning when the
+# character used as a quote delimiter is used inconsistently within a module.
+check-quote-consistency=no
+
+# This flag controls whether the implicit-str-concat should generate a warning
+# on implicit string concatenation in sequences defined over several lines.
+check-str-concat-over-line-jumps=no
+
+
+[DESIGN]
+
+# Maximum number of arguments for function / method.
+max-args=5
+
+# Maximum number of attributes for a class (see R0902).
+max-attributes=7
+
+# Maximum number of boolean expressions in an if statement (see R0916).
+max-bool-expr=5
+
+# Maximum number of branch for function / method body.
+max-branches=12
+
+# Maximum number of locals for function / method body.
+max-locals=15
+
+# Maximum number of parents for a class (see R0901).
+max-parents=7
+
+# Maximum number of public methods for a class (see R0904).
+max-public-methods=20
+
+# Maximum number of return / yield for function / method body.
+max-returns=6
+
+# Maximum number of statements in function / method body.
+max-statements=50
+
+# Minimum number of public methods for a class (see R0903).
+min-public-methods=2
+
+
+[IMPORTS]
+
+# List of modules that can be imported at any level, not just the top level
+# one.
+allow-any-import-level=
+
+# Allow wildcard imports from modules that define __all__.
+allow-wildcard-with-all=no
+
+# Analyse import fallback blocks. This can be used to support both Python 2 and
+# 3 compatible code, which means that the block might have code that exists
+# only in one or another interpreter, leading to false positives when analysed.
+analyse-fallback-blocks=no
+
+# Deprecated modules which should not be used, separated by a comma.
+deprecated-modules=optparse,tkinter.tix
+
+# Create a graph of external dependencies in the given file (report RP0402 must
+# not be disabled).
+ext-import-graph=
+
+# Create a graph of every (i.e. internal and external) dependencies in the
+# given file (report RP0402 must not be disabled).
+import-graph=
+
+# Create a graph of internal dependencies in the given file (report RP0402 must
+# not be disabled).
+int-import-graph=
+
+# Force import order to recognize a module as part of the standard
+# compatibility libraries.
+known-standard-library=
+
+# Force import order to recognize a module as part of a third party library.
+known-third-party=enchant
+
+# Couples of modules and preferred modules, separated by a comma.
+preferred-modules=
+
+
+[CLASSES]
+
+# List of method names used to declare (i.e. assign) instance attributes.
+defining-attr-methods=__init__,
+                      __new__,
+                      setUp,
+                      __post_init__
+
+# List of member names, which should be excluded from the protected access
+# warning.
+exclude-protected=_asdict,
+                  _fields,
+                  _replace,
+                  _source,
+                  _make
+
+# List of valid names for the first argument in a class method.
+valid-classmethod-first-arg=cls
+
+# List of valid names for the first argument in a metaclass class method.
+valid-metaclass-classmethod-first-arg=cls
+
+
+[EXCEPTIONS]
+
+# Exceptions that will emit a warning when being caught. Defaults to
+# "BaseException, Exception".
+overgeneral-exceptions=BaseException,
+                       Exception

direct/src/actor/Actor.py

@@ -163,10 +163,7 @@ class Actor(DirectObject, NodePath):
             #the actor for a few frames, otherwise it has no effect
             a.fixBounds()
         """
-        try:
-            self.Actor_initialized
-            return
-        except:
+        if not hasattr(self, 'Actor_initialized'):
             self.Actor_initialized = 1
 
         # initialize our NodePath essence
@@ -252,9 +249,9 @@ class Actor(DirectObject, NodePath):
             # make sure we have models
             if models:
                 # do we have a dictionary of models?
-                if type(models) == dict:
+                if isinstance(models, dict):
                     # if this is a dictionary of dictionaries
-                    if type(models[next(iter(models))]) == dict:
+                    if isinstance(models[next(iter(models))], dict):
                         # then it must be a multipart actor w/LOD
                         self.setLODNode(node = lodNode)
                         # preserve numerical order for lod's
@@ -271,7 +268,7 @@ class Actor(DirectObject, NodePath):
                                                modelName, lodName, copy = copy,
                                                okMissing = okMissing)
                     # then if there is a dictionary of dictionaries of anims
-                    elif type(anims[next(iter(anims))]) == dict:
+                    elif isinstance(anims[next(iter(anims))], dict):
                         # then this is a multipart actor w/o LOD
                         for partName in models:
                             # pass in each part
@@ -297,10 +294,10 @@ class Actor(DirectObject, NodePath):
             if anims:
                 if len(anims) >= 1:
                     # if so, does it have a dictionary of dictionaries?
-                    if type(anims[next(iter(anims))]) == dict:
+                    if isinstance(anims[next(iter(anims))], dict):
                         # are the models a dict of dicts too?
-                        if type(models) == dict:
-                            if type(models[next(iter(models))]) == dict:
+                        if isinstance(models, dict):
+                            if isinstance(models[next(iter(models))], dict):
                                 # then we have a multi-part w/ LOD
                                 sortedKeys = list(models.keys())
                                 sortedKeys.sort()
@@ -313,7 +310,7 @@ class Actor(DirectObject, NodePath):
                                 # then it must be multi-part w/o LOD
                                 for partName in anims:
                                     self.loadAnims(anims[partName], partName)
-                    elif type(models) == dict:
+                    elif isinstance(models, dict):
                         # then we have single-part w/ LOD
                         sortedKeys = list(models.keys())
                         sortedKeys.sort()
@@ -344,50 +341,46 @@ class Actor(DirectObject, NodePath):
             self.__geomNode.node().setFinal(1)
 
     def delete(self):
-        try:
-            self.Actor_deleted
-            return
-        except:
+        if not hasattr(self, 'Actor_deleted'):
             self.Actor_deleted = 1
             self.cleanup()
 
     def copyActor(self, other, overwrite=False):
-            # act like a copy constructor
-            self.gotName = other.gotName
-
-            # copy the scene graph elements of other
-            if overwrite:
-                otherCopy = other.copyTo(NodePath())
-                otherCopy.detachNode()
-                # assign these elements to ourselve (overwrite)
-                self.assign(otherCopy)
-            else:
-                # just copy these to ourselves
-                otherCopy = other.copyTo(self)
-            # masad: check if otherCopy has a geomNode as its first child
-            # if actor is initialized with flattenable, then otherCopy, not
-            # its first child, is the geom node; check __init__, for reference
-            if other.getGeomNode().getName() == other.getName():
-                self.setGeomNode(otherCopy)
-            else:
-                self.setGeomNode(otherCopy.getChild(0))
-
-            # copy the switches for lods
-            self.switches = other.switches
-            self.__LODNode = self.find('**/+LODNode')
-            self.__hasLOD = 0
-            if not self.__LODNode.isEmpty():
-                self.__hasLOD = 1
+        # act like a copy constructor
+        self.gotName = other.gotName
+
+        # copy the scene graph elements of other
+        if overwrite:
+            otherCopy = other.copyTo(NodePath())
+            otherCopy.detachNode()
+            # assign these elements to ourselve (overwrite)
+            self.assign(otherCopy)
+        else:
+            # just copy these to ourselves
+            otherCopy = other.copyTo(self)
+        # masad: check if otherCopy has a geomNode as its first child
+        # if actor is initialized with flattenable, then otherCopy, not
+        # its first child, is the geom node; check __init__, for reference
+        if other.getGeomNode().getName() == other.getName():
+            self.setGeomNode(otherCopy)
+        else:
+            self.setGeomNode(otherCopy.getChild(0))
 
+        # copy the switches for lods
+        self.switches = other.switches
+        self.__LODNode = self.find('**/+LODNode')
+        self.__hasLOD = 0
+        if not self.__LODNode.isEmpty():
+            self.__hasLOD = 1
 
-            # copy the part dictionary from other
-            self.__copyPartBundles(other)
-            self.__copySubpartDict(other)
-            self.__subpartsComplete = other.__subpartsComplete
 
-            # copy the anim dictionary from other
-            self.__copyAnimControls(other)
+        # copy the part dictionary from other
+        self.__copyPartBundles(other)
+        self.__copySubpartDict(other)
+        self.__subpartsComplete = other.__subpartsComplete
 
+        # copy the anim dictionary from other
+        self.__copyAnimControls(other)
 
     def __cmp__(self, other):
         # Actor inherits from NodePath, which inherits a definition of
@@ -514,7 +507,7 @@ class Actor(DirectObject, NodePath):
         self.stop(None)
         self.clearPythonData()
         self.flush()
-        if(self.__geomNode):
+        if self.__geomNode:
             self.__geomNode.removeNode()
             self.__geomNode = None
         if not self.isEmpty():
@@ -597,12 +590,10 @@ class Actor(DirectObject, NodePath):
                         'l':1,
                         'f':0}
 
-                """
-                sx = smap.get(x[0], None)
-
-                if sx is None:
-                    self.notify.error('Invalid lodName: %s' % x)
-                """
+                #sx = smap.get(x[0], None)
+                #
+                #if sx is None:
+                #    self.notify.error('Invalid lodName: %s' % x)
                 return smap[x[0]]
             else:
                 return int(x)
@@ -1471,7 +1462,7 @@ class Actor(DirectObject, NodePath):
             #iterate through for a specific part
             for lodData in self.__partBundleDict.values():
                 partData = lodData.get(partName)
-                if(partData):
+                if partData:
                     char = partData.partBundleNP
                     char.node().update()
                     geomNodes = char.findAllMatches("**/+GeomNode")
@@ -1693,11 +1684,20 @@ class Actor(DirectObject, NodePath):
         else:
             lodName = 'lodRoot'
 
-        try:
-            return self.__animControlDict[lodName][partName][animName].filename
-        except:
+        partDict = self.__animControlDict.get(lodName)
+        if partDict is None:
+            return None
+
+        animDict = partDict.get(partName)
+        if animDict is None:
+            return None
+
+        anim = animDict.get(animName)
+        if anim is None:
             return None
 
+        return anim.filename
+
     def getAnimControl(self, animName, partName=None, lodName=None,
                        allowAsyncBind = True):
         """
@@ -1731,7 +1731,6 @@ class Actor(DirectObject, NodePath):
             if anim is None:
                 # anim was not present
                 assert Actor.notify.debug("couldn't find anim: %s" % (animName))
-                pass
             else:
                 # bind the animation first if we need to
                 if not anim.animControl:
@@ -1852,7 +1851,6 @@ class Actor(DirectObject, NodePath):
                         if anim is None:
                             # anim was not present
                             assert Actor.notify.debug("couldn't find anim: %s" % (animName))
-                            pass
                         else:
                             # bind the animation first if we need to
                             animControl = anim.animControl
@@ -1987,7 +1985,7 @@ class Actor(DirectObject, NodePath):
 
         node = bundleNP.node()
         # A model loaded from disk will always have just one bundle.
-        assert(node.getNumBundles() == 1)
+        assert node.getNumBundles() == 1
         bundleHandle = node.getBundleHandle(0)
 
         if self.mergeLODBundles:
@@ -2003,7 +2001,7 @@ class Actor(DirectObject, NodePath):
         bundleDict[partName] = Actor.PartDef(bundleNP, bundleHandle, partModel)
 
 
-    def makeSubpart(self, partName, includeJoints, excludeJoints = [],
+    def makeSubpart(self, partName, includeJoints, excludeJoints = (),
                     parent="modelRoot", overlapping = False):
 
         """Defines a new "part" of the Actor that corresponds to the
@@ -2128,10 +2126,7 @@ class Actor(DirectObject, NodePath):
             lodNames = ['common']
         elif lodName == 'all':
             reload = False
-            lodNames = list(self.switches.keys())
-            lodNames.sort()
-            for i in range(0, len(lodNames)):
-                lodNames[i] = str(lodNames[i])
+            lodNames = list(map(str, sorted(self.switches.keys())))
         else:
             lodNames = [lodName]
 
@@ -2140,11 +2135,10 @@ class Actor(DirectObject, NodePath):
 
         firstLoad = True
         if not reload:
-            try:
-                self.__animControlDict[lodNames[0]][partName]
+            if lodNames[0] in self.__animControlDict and \
+               partName in self.__animControlDict[lodNames[0]]:
                 firstLoad = False
-            except:
-                pass
+
         for lName in lodNames:
             if firstLoad:
                 self.__animControlDict.setdefault(lName, {})
@@ -2438,7 +2432,7 @@ class Actor(DirectObject, NodePath):
         bundles in our part bundle dict that have matching names, and
         store the resulting anim controls in our own part bundle dict"""
 
-        assert(other.mergeLODBundles == self.mergeLODBundles)
+        assert other.mergeLODBundles == self.mergeLODBundles
 
         for lodName in other.__animControlDict:
             self.__animControlDict[lodName] = {}
@@ -2509,11 +2503,10 @@ class Actor(DirectObject, NodePath):
         for lodName, animList in self.getAnimBlends(animName, partName, lodName):
             print('LOD %s:' % (lodName))
             for animName, blendList in animList:
-
-                list = []
+                strings = []
                 for partName, effect in blendList:
-                    list.append('%s:%.3f' % (partName, effect))
-                print('  %s: %s' % (animName, ', '.join(list)))
+                    strings.append('%s:%.3f' % (partName, effect))
+                print('  %s: %s' % (animName, ', '.join(strings)))
 
     def osdAnimBlends(self, animName=None, partName=None, lodName=None):
         if not onScreenDebug.enabled:

direct/src/actor/DistributedActor.py

@@ -8,9 +8,7 @@ from . import Actor
 
 class DistributedActor(DistributedNode.DistributedNode, Actor.Actor):
     def __init__(self, cr):
-        try:
-            self.DistributedActor_initialized
-        except:
+        if not hasattr(self, 'DistributedActor_initialized'):
             self.DistributedActor_initialized = 1
             Actor.Actor.__init__(self)
             DistributedNode.DistributedNode.__init__(self, cr)
@@ -20,14 +18,12 @@ class DistributedActor(DistributedNode.DistributedNode, Actor.Actor):
 
     def disable(self):
         # remove all anims, on all parts and all lods
-        if (not self.isEmpty()):
+        if not self.isEmpty():
             Actor.Actor.unloadAnims(self, None, None, None)
         DistributedNode.DistributedNode.disable(self)
 
     def delete(self):
-        try:
-            self.DistributedActor_deleted
-        except:
+        if not hasattr(self, 'DistributedActor_deleted'):
             self.DistributedActor_deleted = 1
             DistributedNode.DistributedNode.delete(self)
             Actor.Actor.delete(self)

direct/src/cluster/ClusterClient.py

@@ -6,6 +6,7 @@ from .ClusterConfig import *
 from direct.directnotify import DirectNotifyGlobal
 from direct.showbase import DirectObject
 from direct.task import Task
+from direct.task.TaskManagerGlobal import taskMgr
 import os
 
 
@@ -70,7 +71,7 @@ class ClusterClient(DirectObject.DirectObject):
             server = DisplayConnection(
                 self.qcm, serverConfig.serverName,
                 serverConfig.serverMsgPort, self.msgHandler)
-            if server == None:
+            if server is None:
                 self.notify.error('Could not open %s on %s port %d' %
                                   (serverConfig.serverConfigName,
                                    serverConfig.serverName,
@@ -138,15 +139,14 @@ class ClusterClient(DirectObject.DirectObject):
             object     = pair[1]
             name       = self.controlMappings[object][0]
             serverList = self.controlMappings[object][1]
-            if (object in self.objectMappings):
+            if object in self.objectMappings:
                 self.moveObject(self.objectMappings[object],name,serverList,
                                 self.controlOffsets[object], self.objectHasColor[object])
         self.sendNamedMovementDone()
         return Task.cont
 
     def sendNamedMovementDone(self, serverList = None):
-
-        if (serverList == None):
+        if serverList is None:
             serverList = range(len(self.serverList))
 
         for server in serverList:
@@ -155,7 +155,6 @@ class ClusterClient(DirectObject.DirectObject):
 
 
     def redoSortedPriorities(self):
-
         self.sortedControlMappings = []
         for key in self.controlMappings:
             self.sortedControlMappings.append([self.controlPriorities[key],
@@ -169,7 +168,7 @@ class ClusterClient(DirectObject.DirectObject):
         hpr = nodePath.getHpr(render)
         scale = nodePath.getScale(render)
         hidden = nodePath.isHidden()
-        if (hasColor):
+        if hasColor:
             color = nodePath.getColor()
         else:
             color = [1,1,1,1]
@@ -193,7 +192,7 @@ class ClusterClient(DirectObject.DirectObject):
 
     def moveSelectedTask(self, state):
         # Update cluster if current display is a cluster client
-        if (last is not None):
+        if last is not None:
             self.notify.debug('moving selected node path')
             xyz = Point3(0)
             hpr = VBase3(0)
@@ -204,24 +203,24 @@ class ClusterClient(DirectObject.DirectObject):
         return Task.cont
 
 
-    def addNamedObjectMapping(self,object,name,hasColor = True):
-        if (name not in self.objectMappings):
+    def addNamedObjectMapping(self, object, name, hasColor = True):
+        if name not in self.objectMappings:
             self.objectMappings[name] = object
             self.objectHasColor[name] = hasColor
         else:
             self.notify.debug('attempt to add duplicate named object: '+name)
 
     def removeObjectMapping(self,name):
-        if (name in self.objectMappings):
+        if name in self.objectMappings:
             self.objectMappings.pop(name)
 
 
-    def addControlMapping(self,objectName,controlledName, serverList = None,
+    def addControlMapping(self, objectName, controlledName, serverList = None,
                           offset = None, priority = 0):
-        if (objectName not in self.controlMappings):
-            if (serverList == None):
+        if objectName not in self.controlMappings:
+            if serverList is None:
                 serverList = range(len(self.serverList))
-            if (offset == None):
+            if offset is None:
                 offset = Vec3(0,0,0)
 
             self.controlMappings[objectName] = [controlledName,serverList]
@@ -233,30 +232,29 @@ class ClusterClient(DirectObject.DirectObject):
             for item in oldList:
                 mergedList.append(item)
             for item in serverList:
-                if (item not in mergedList):
+                if item not in mergedList:
                     mergedList.append(item)
 
         self.redoSortedPriorities()
             #self.notify.debug('attempt to add duplicate controlled object: '+name)
 
-    def setControlMappingOffset(self,objectName,offset):
-        if (objectName in self.controlMappings):
+    def setControlMappingOffset(self, objectName, offset):
+        if objectName in self.controlMappings:
             self.controlOffsets[objectName] = offset
 
-    def removeControlMapping(self,name, serverList = None):
-        if (name in self.controlMappings):
-
-            if (serverList == None):
+    def removeControlMapping(self, name, serverList = None):
+        if name in self.controlMappings:
+            if serverList is None:
                 self.controlMappings.pop(name)
                 self.controlPriorities.pop(name)
             else:
-                list = self.controlMappings[key][1]
+                oldList = self.controlMappings[key][1]
                 newList = []
-                for server in list:
-                    if (server not in serverList):
+                for server in oldList:
+                    if server not in serverList:
                         newList.append(server)
                 self.controlMappings[key][1] = newList
-                if (len(newList) == 0):
+                if len(newList) == 0:
                     self.controlMappings.pop(name)
                     self.controlPriorities.pop(name)
         self.redoSortedPriorities()
@@ -303,7 +301,7 @@ class ClusterClient(DirectObject.DirectObject):
             tag = self.taggedObjects[name]
             function = tag["selectFunction"]
             args     = tag["selectArgs"]
-            if (function != None):
+            if function is not None:
                 function(*args)
         else:
             self(self.getNodePathFindCmd(nodePath) + '.select()', 0)
@@ -315,7 +313,7 @@ class ClusterClient(DirectObject.DirectObject):
             tag = self.taggedObjects[name]
             function = tag["deselectFunction"]
             args     = tag["deselectArgs"]
-            if (function != None):
+            if function is not None:
                 function(*args)
             self.startMoveSelectedTask()
         self(self.getNodePathFindCmd(nodePath) + '.deselect()', 0)
@@ -348,24 +346,23 @@ class ClusterClient(DirectObject.DirectObject):
 
 
     def handleDatagram(self,dgi,type,server):
-        if (type == CLUSTER_NONE):
+        if type == CLUSTER_NONE:
             pass
-        elif (type == CLUSTER_NAMED_OBJECT_MOVEMENT):
+        elif type == CLUSTER_NAMED_OBJECT_MOVEMENT:
             self.serverQueues[server].append(self.msgHandler.parseNamedMovementDatagram(dgi))
             #self.handleNamedMovement(dgi)
         # when we recieve a 'named movement done' packet from a server we handle
         # all of its messages
-        elif (type == CLUSTER_NAMED_MOVEMENT_DONE):
+        elif type == CLUSTER_NAMED_MOVEMENT_DONE:
             self.handleMessageQueue(server)
         else:
             self.notify.warning("Received unsupported packet type:" % type)
         return type
 
     def handleMessageQueue(self,server):
-
-        list = self.serverQueues[server]
+        queue = self.serverQueues[server]
         # handle all messages in the queue
-        for data in list:
+        for data in queue:
             #print dgi
             self.handleNamedMovement(data)
 
@@ -378,14 +375,14 @@ class ClusterClient(DirectObject.DirectObject):
 
         (name,x, y, z, h, p, r, sx, sy, sz,red,g,b,a, hidden) = data
         #print "name"
-        #if (name == "camNode"):
+        #if name == "camNode":
         #    print x,y,z,h,p,r, sx, sy, sz,red,g,b,a, hidden
-        if (name in self.objectMappings):
+        if name in self.objectMappings:
             self.objectMappings[name].setPosHpr(render, x, y, z, h, p, r)
             self.objectMappings[name].setScale(render,sx,sy,sz)
-            if (self.objectHasColor[name]):
+            if self.objectHasColor[name]:
                 self.objectMappings[name].setColor(red,g,b,a)
-            if (hidden):
+            if hidden:
                 self.objectMappings[name].hide()
             else:
                 self.objectMappings[name].show()
@@ -451,7 +448,7 @@ class DisplayConnection:
         self.tcpConn = qcm.openTCPClientConnection(
             serverName, port, gameServerTimeoutMs)
         # Test for bad connection
-        if self.tcpConn == None:
+        if self.tcpConn is None:
             return None
         else:
             self.tcpConn.setNoDelay(1)
@@ -680,5 +677,3 @@ class DummyClusterClient(DirectObject.DirectObject):
         if fLocally:
             # Execute locally
             exec(commandString, __builtins__)
-
-

direct/src/cluster/ClusterConfig.py

@@ -165,4 +165,3 @@ ClientConfigs = {
                               }
                              ],
     }
-

direct/src/cluster/ClusterMsgs.py

@@ -59,17 +59,17 @@ class ClusterMsgHandler:
         if qcr.dataAvailable():
             datagram = NetDatagram()
             if qcr.getData(datagram):
-                (dgi, type) = self.readHeader(datagram)
+                (dgi, dtype) = self.readHeader(datagram)
             else:
                 dgi = None
-                type = CLUSTER_NONE
+                dtype = CLUSTER_NONE
                 self.notify.warning("getData returned false")
         else:
             datagram = None
             dgi = None
-            type = CLUSTER_NONE
+            dtype = CLUSTER_NONE
         # Note, return datagram to keep a handle on the data
-        return (datagram, dgi, type)
+        return (datagram, dgi, dtype)
 
     def blockingRead(self, qcr):
         """
@@ -85,19 +85,19 @@ class ClusterMsgHandler:
         # Data is available, create a datagram iterator
         datagram = NetDatagram()
         if qcr.getData(datagram):
-            (dgi, type) = self.readHeader(datagram)
+            (dgi, dtype) = self.readHeader(datagram)
         else:
-            (dgi, type) = (None, CLUSTER_NONE)
+            (dgi, dtype) = (None, CLUSTER_NONE)
             self.notify.warning("getData returned false")
         # Note, return datagram to keep a handle on the data
-        return (datagram, dgi, type)
+        return (datagram, dgi, dtype)
 
     def readHeader(self, datagram):
         dgi = PyDatagramIterator(datagram)
         number = dgi.getUint32()
-        type = dgi.getUint8()
-        self.notify.debug("Packet %d type %d received" % (number, type))
-        return (dgi, type)
+        dtype = dgi.getUint8()
+        self.notify.debug("Packet %d type %d received" % (number, dtype))
+        return (dgi, dtype)
 
     def makeCamOffsetDatagram(self, xyz, hpr):
         datagram = PyDatagram()
@@ -298,12 +298,3 @@ class ClusterMsgHandler:
         dt=dgi.getFloat32()
         self.notify.debug('time data=%f %f' % (frameTime, dt))
         return (frameCount, frameTime, dt)
-
-
-
-
-
-
-
-
-

direct/src/cluster/ClusterServer.py

@@ -4,6 +4,7 @@ from direct.distributed.MsgTypes import *
 from direct.directnotify import DirectNotifyGlobal
 from direct.showbase import DirectObject
 from direct.task import Task
+from direct.task.TaskManagerGlobal import taskMgr
 
 # NOTE: This assumes the following variables are set via bootstrap command line
 # arguments on server startup:
@@ -100,16 +101,16 @@ class ClusterServer(DirectObject.DirectObject):
         return Task.cont
 
 
-    def addNamedObjectMapping(self,object,name,hasColor = True,
+    def addNamedObjectMapping(self, object, name, hasColor = True,
                               priority = 0):
-        if (name not in self.objectMappings):
+        if name not in self.objectMappings:
             self.objectMappings[name] = object
             self.objectHasColor[name] = hasColor
         else:
             self.notify.debug('attempt to add duplicate named object: '+name)
 
-    def removeObjectMapping(self,name):
-        if (name in self.objectMappings):
+    def removeObjectMapping(self, name):
+        if name in self.objectMappings:
             self.objectMappings.pop(name)
 
 
@@ -123,11 +124,11 @@ class ClusterServer(DirectObject.DirectObject):
         self.sortedControlMappings.sort()
 
 
-    def addControlMapping(self,objectName,controlledName, offset = None,
+    def addControlMapping(self, objectName, controlledName, offset = None,
                           priority = 0):
-        if (objectName not in self.controlMappings):
+        if objectName not in self.controlMappings:
             self.controlMappings[objectName] = controlledName
-            if (offset == None):
+            if offset is None:
                 offset = Vec3(0,0,0)
             self.controlOffsets[objectName]  = offset
             self.controlPriorities[objectName] = priority
@@ -135,13 +136,13 @@ class ClusterServer(DirectObject.DirectObject):
         else:
             self.notify.debug('attempt to add duplicate controlled object: '+name)
 
-    def setControlMappingOffset(self,objectName,offset):
-        if (objectName in self.controlMappings):
+    def setControlMappingOffset(self, objectName, offset):
+        if objectName in self.controlMappings:
             self.controlOffsets[objectName] = offset
 
 
-    def removeControlMapping(self,name):
-        if (name in self.controlMappings):
+    def removeControlMapping(self, name):
+        if name in self.controlMappings:
             self.controlMappings.pop(name)
             self.controlPriorities.pop(name)
         self.redoSortedPriorities()
@@ -156,7 +157,7 @@ class ClusterServer(DirectObject.DirectObject):
         for pair in self.sortedControlPriorities:
             object = pair[1]
             name   = self.controlMappings[object]
-            if (object in self.objectMappings):
+            if object in self.objectMappings:
                 self.moveObject(self.objectMappings[object],name,self.controlOffsets[object],
                                 self.objectHasColor[object])
 
@@ -165,7 +166,6 @@ class ClusterServer(DirectObject.DirectObject):
 
 
     def sendNamedMovementDone(self):
-
         self.notify.debug("named movement done")
         datagram = self.msgHandler.makeNamedMovementDone()
         self.cw.send(datagram,self.lastConnection)
@@ -176,7 +176,7 @@ class ClusterServer(DirectObject.DirectObject):
         xyz = nodePath.getPos(render) + offset
         hpr = nodePath.getHpr(render)
         scale = nodePath.getScale(render)
-        if (hasColor):
+        if hasColor:
             color = nodePath.getColor()
         else:
             color = [1,1,1,1]
@@ -243,34 +243,34 @@ class ClusterServer(DirectObject.DirectObject):
 
     def handleDatagram(self, dgi, type):
         """ Process a datagram depending upon type flag """
-        if (type == CLUSTER_NONE):
+        if type == CLUSTER_NONE:
             pass
-        elif (type == CLUSTER_EXIT):
+        elif type == CLUSTER_EXIT:
             print('GOT EXIT')
             import sys
             sys.exit()
-        elif (type == CLUSTER_CAM_OFFSET):
+        elif type == CLUSTER_CAM_OFFSET:
             self.handleCamOffset(dgi)
-        elif (type == CLUSTER_CAM_FRUSTUM):
+        elif type == CLUSTER_CAM_FRUSTUM:
             self.handleCamFrustum(dgi)
-        elif (type == CLUSTER_CAM_MOVEMENT):
+        elif type == CLUSTER_CAM_MOVEMENT:
             self.handleCamMovement(dgi)
-        elif (type == CLUSTER_SELECTED_MOVEMENT):
+        elif type == CLUSTER_SELECTED_MOVEMENT:
             self.handleSelectedMovement(dgi)
-        elif (type == CLUSTER_COMMAND_STRING):
+        elif type == CLUSTER_COMMAND_STRING:
             self.handleCommandString(dgi)
-        elif (type == CLUSTER_SWAP_READY):
+        elif type == CLUSTER_SWAP_READY:
             pass
-        elif (type == CLUSTER_SWAP_NOW):
+        elif type == CLUSTER_SWAP_NOW:
             self.notify.debug('swapping')
             base.graphicsEngine.flipFrame()
-        elif (type == CLUSTER_TIME_DATA):
+        elif type == CLUSTER_TIME_DATA:
             self.notify.debug('time data')
             self.handleTimeData(dgi)
-        elif (type == CLUSTER_NAMED_OBJECT_MOVEMENT):
+        elif type == CLUSTER_NAMED_OBJECT_MOVEMENT:
             self.messageQueue.append(self.msgHandler.parseNamedMovementDatagram(dgi))
             #self.handleNamedMovement(dgi)
-        elif (type == CLUSTER_NAMED_MOVEMENT_DONE):
+        elif type == CLUSTER_NAMED_MOVEMENT_DONE:
             #print "got done",self.messageQueue
             #if (len(self.messageQueue) > 0):
             #    print self.messageQueue[0]
@@ -297,11 +297,11 @@ class ClusterServer(DirectObject.DirectObject):
     def handleNamedMovement(self, data):
         """ Update cameraJig position to reflect latest position """
         (name,x, y, z, h, p, r,sx,sy,sz, red, g, b, a, hidden) = data
-        if (name in self.objectMappings):
+        if name in self.objectMappings:
             self.objectMappings[name].setPosHpr(render, x, y, z, h, p, r)
             self.objectMappings[name].setScale(render,sx,sy,sz)
             self.objectMappings[name].setColor(red,g,b,a)
-            if (hidden):
+            if hidden:
                 self.objectMappings[name].hide()
             else:
                 self.objectMappings[name].show()
@@ -346,5 +346,3 @@ class ClusterServer(DirectObject.DirectObject):
             exec(command, __builtins__)
         except:
             pass
-
-

direct/src/controls/BattleWalker.py

@@ -1,5 +1,6 @@
 
 from direct.showbase.InputStateGlobal import inputState
+from direct.showbase.MessengerGlobal import messenger
 from direct.task.Task import Task
 from panda3d.core import *
 from . import GravityWalker
@@ -54,7 +55,7 @@ class BattleWalker(GravityWalker.GravityWalker):
 
         debugRunning = inputState.isSet("debugRunning")
 
-        if(debugRunning):
+        if debugRunning:
             self.speed*=base.debugRunningMultiplier
             self.slideSpeed*=base.debugRunningMultiplier
             self.rotationSpeed*=1.25
@@ -139,150 +140,3 @@ class BattleWalker(GravityWalker.GravityWalker):
         if self.moving or jump:
             messenger.send("avatarMoving")
         return Task.cont
-
-    if 0:
-        def handleAvatarControls(self, task):
-            # If targetNp is not available, revert back to GravityWalker.handleAvatarControls.
-            # This situation occurs when the target dies, but we aren't switched out of
-            # battle walker control mode.
-
-            targetNp = self.avatarNodePath.currentTarget
-            if not BattleStrafe or targetNp == None or targetNp.isEmpty():
-                return GravityWalker.GravityWalker.handleAvatarControls(self, task)
-
-            # get the button states:
-            run = inputState.isSet("run")
-            forward = inputState.isSet("forward")
-            reverse = inputState.isSet("reverse")
-            turnLeft = inputState.isSet("turnLeft")
-            turnRight = inputState.isSet("turnRight")
-            slide = inputState.isSet("slide")
-            jump = inputState.isSet("jump")
-            # Determine what the speeds are based on the buttons:
-            self.advanceSpeed=(forward and self.avatarControlForwardSpeed or
-                               reverse and -self.avatarControlReverseSpeed)
-            if run and self.advanceSpeed>0.0:
-                self.advanceSpeed*=2.0 #*#
-            # Should fSlide be renamed slideButton?
-            self.slideSpeed=.15*(turnLeft and -self.avatarControlForwardSpeed or
-                                 turnRight and self.avatarControlForwardSpeed)
-            print('slideSpeed: %s' % self.slideSpeed)
-            self.rotationSpeed=0
-            self.speed=0
-
-            debugRunning = inputState.isSet("debugRunning")
-            if debugRunning:
-                self.advanceSpeed*=4.0
-                self.slideSpeed*=4.0
-                self.rotationSpeed*=1.25
-
-            if self.needToDeltaPos:
-                self.setPriorParentVector()
-                self.needToDeltaPos = 0
-            if self.wantDebugIndicator:
-                self.displayDebugInfo()
-            if self.lifter.isOnGround():
-                if self.isAirborne:
-                    self.isAirborne = 0
-                    assert self.debugPrint("isAirborne 0 due to isOnGround() true")
-                    impact = self.lifter.getImpactVelocity()
-                    if impact < -30.0:
-                        messenger.send("jumpHardLand")
-                        self.startJumpDelay(0.3)
-                    else:
-                        messenger.send("jumpLand")
-                        if impact < -5.0:
-                            self.startJumpDelay(0.2)
-                        # else, ignore the little potholes.
-                assert self.isAirborne == 0
-                self.priorParent = Vec3.zero()
-                if jump and self.mayJump:
-                    # The jump button is down and we're close
-                    # enough to the ground to jump.
-                    self.lifter.addVelocity(self.avatarControlJumpForce)
-                    messenger.send("jumpStart")
-                    self.isAirborne = 1
-                    assert self.debugPrint("isAirborne 1 due to jump")
-            else:
-                if self.isAirborne == 0:
-                    assert self.debugPrint("isAirborne 1 due to isOnGround() false")
-                self.isAirborne = 1
-
-            self.__oldPosDelta = self.avatarNodePath.getPosDelta(render)
-            # How far did we move based on the amount of time elapsed?
-            self.__oldDt = ClockObject.getGlobalClock().getDt()
-            dt=self.__oldDt
-
-            # Before we do anything with position or orientation, make the avatar
-            # face it's target.  Only allow rMax degrees rotation per frame, so
-            # we don't get an unnatural spinning effect
-            curH = self.avatarNodePath.getH()
-            self.avatarNodePath.headsUp(targetNp)
-            newH = self.avatarNodePath.getH()
-            delH = reduceAngle(newH-curH)
-            rMax = 10
-            if delH < -rMax:
-                self.avatarNodePath.setH(curH-rMax)
-                self.rotationSpeed=-self.avatarControlRotateSpeed
-            elif delH > rMax:
-                self.avatarNodePath.setH(curH+rMax)
-                self.rotationSpeed=self.avatarControlRotateSpeed
-
-            # Check to see if we're moving at all:
-            self.moving = self.speed or self.slideSpeed or self.rotationSpeed or (self.priorParent!=Vec3.zero())
-            if self.moving:
-                distance = dt * self.speed
-                slideDistance = dt * self.slideSpeed
-                print('slideDistance: %s' % slideDistance)
-                rotation = dt * self.rotationSpeed
-
-                # Take a step in the direction of our previous heading.
-                self.vel=Vec3(Vec3.forward() * distance +
-                              Vec3.right() * slideDistance)
-                if self.vel != Vec3.zero() or self.priorParent != Vec3.zero():
-                    if 1:
-                        # rotMat is the rotation matrix corresponding to
-                        # our previous heading.
-                        rotMat=Mat3.rotateMatNormaxis(self.avatarNodePath.getH(), Vec3.up())
-                        step=(self.priorParent * dt) + rotMat.xform(self.vel)
-                        self.avatarNodePath.setFluidPos(Point3(
-                                self.avatarNodePath.getPos()+step))
-                self.avatarNodePath.setH(self.avatarNodePath.getH()+rotation)
-            else:
-                self.vel.set(0.0, 0.0, 0.0)
-
-            """
-            # Check to see if we're moving at all:
-            self.moving = self.advanceSpeed or self.slideSpeed or self.rotationSpeed or (self.priorParent!=Vec3.zero())
-            if self.moving:
-                distance = dt * self.advanceSpeed
-                slideDistance = dt * self.slideSpeed
-                rotation = dt * self.rotationSpeed
-
-                # Prevent avatar from getting too close to target
-                d = self.avatarNodePath.getPos(targetNp)
-                # TODO:  make min distance adjust for current weapon
-                if (d[0]*d[0]+d[1]*d[1] < 6.0 and distance > 0):
-                    # move the avatar sideways instead of forward
-                    slideDistance += .2
-                    distance = 0
-
-                # Take a step in the direction of our previous heading.
-                self.vel=Vec3(Vec3.forward() * distance +
-                              Vec3.right() * slideDistance)
-                if self.vel != Vec3.zero() or self.priorParent != Vec3.zero():
-                    # rotMat is the rotation matrix corresponding to
-                    # our previous heading.
-                    rotMat=Mat3.rotateMatNormaxis(self.avatarNodePath.getH(), Vec3.up())
-                    step=rotMat.xform(self.vel) + (self.priorParent * dt)
-                    self.avatarNodePath.setFluidPos(Point3(
-                        self.avatarNodePath.getPos()+step))
-                self.avatarNodePath.setH(self.avatarNodePath.getH()+rotation)
-            else:
-                self.vel.set(0.0, 0.0, 0.0)
-            """
-            if self.moving or jump:
-                messenger.send("avatarMoving")
-            return Task.cont
-
-

direct/src/controls/ControlManager.py

@@ -1,5 +1,6 @@
 
 from direct.showbase.InputStateGlobal import inputState
+from direct.showbase.MessengerGlobal import messenger
 #from DirectGui import *
 #from PythonUtil import *
 #from IntervalGlobal import *
@@ -292,18 +293,18 @@ class ControlManager:
         self.forceAvJumpToken.release()
         self.forceAvJumpToken = None
 
-    def monitor(self, foo):
+    def monitor(self, _):
         #assert self.debugPrint("monitor()")
         #if 1:
         #    airborneHeight=self.avatar.getAirborneHeight()
         #    onScreenDebug.add("airborneHeight", "% 10.4f"%(airborneHeight,))
-        if 0:
-            onScreenDebug.add("InputState forward", "%d"%(inputState.isSet("forward")))
-            onScreenDebug.add("InputState reverse", "%d"%(inputState.isSet("reverse")))
-            onScreenDebug.add("InputState turnLeft", "%d"%(inputState.isSet("turnLeft")))
-            onScreenDebug.add("InputState turnRight", "%d"%(inputState.isSet("turnRight")))
-            onScreenDebug.add("InputState slideLeft", "%d"%(inputState.isSet("slideLeft")))
-            onScreenDebug.add("InputState slideRight", "%d"%(inputState.isSet("slideRight")))
+        #if 0:
+        #    onScreenDebug.add("InputState forward", "%d"%(inputState.isSet("forward")))
+        #    onScreenDebug.add("InputState reverse", "%d"%(inputState.isSet("reverse")))
+        #    onScreenDebug.add("InputState turnLeft", "%d"%(inputState.isSet("turnLeft")))
+        #    onScreenDebug.add("InputState turnRight", "%d"%(inputState.isSet("turnRight")))
+        #    onScreenDebug.add("InputState slideLeft", "%d"%(inputState.isSet("slideLeft")))
+        #    onScreenDebug.add("InputState slideRight", "%d"%(inputState.isSet("slideRight")))
         return Task.cont
 
     def setWASDTurn(self, turn):
@@ -343,4 +344,3 @@ class ControlManager:
 
             inputState.set("turnLeft", False, inputSource=inputState.WASD)
             inputState.set("turnRight", False, inputSource=inputState.WASD)
-

direct/src/controls/DevWalker.py

@@ -19,7 +19,9 @@ animations based on walker events.
 from direct.showbase.InputStateGlobal import inputState
 from direct.directnotify import DirectNotifyGlobal
 from direct.showbase import DirectObject
+from direct.showbase.MessengerGlobal import messenger
 from direct.task.Task import Task
+from direct.task.TaskManagerGlobal import taskMgr
 from panda3d.core import *
 
 

direct/src/controls/GravityWalker.py

@@ -19,10 +19,12 @@ from direct.directnotify.DirectNotifyGlobal import directNotify
 from direct.showbase import DirectObject
 from direct.controls.ControlManager import CollisionHandlerRayStart
 from direct.showbase.InputStateGlobal import inputState
+from direct.showbase.MessengerGlobal import messenger
 from direct.task.Task import Task
-from panda3d.core import *
+from direct.task.TaskManagerGlobal import taskMgr
 from direct.extensions_native import VBase3_extensions
 from direct.extensions_native import VBase4_extensions
+from panda3d.core import *
 import math
 
 
@@ -142,7 +144,7 @@ class GravityWalker(DirectObject.DirectObject):
         cSphereNode.setIntoCollideMask(BitMask32.allOff())
 
         # set up collision mechanism
-        if config.GetBool('want-fluid-pusher', 0):
+        if ConfigVariableBool('want-fluid-pusher', 0):
             self.pusher = CollisionHandlerFluidPusher()
         else:
             self.pusher = CollisionHandlerPusher()
@@ -284,11 +286,11 @@ class GravityWalker(DirectObject.DirectObject):
             # make sure we have a shadow traverser
             base.initShadowTrav()
             if active:
-                if 1:
-                    # Please let skyler or drose know if this is causing a problem
-                    # This is a bit of a hack fix:
-                    self.avatarNodePath.setP(0.0)
-                    self.avatarNodePath.setR(0.0)
+                # Please let skyler or drose know if this is causing a problem
+                # This is a bit of a hack fix:
+                self.avatarNodePath.setP(0.0)
+                self.avatarNodePath.setR(0.0)
+
                 self.cTrav.addCollider(self.cWallSphereNodePath, self.pusher)
                 if self.wantFloorSphere:
                     self.cTrav.addCollider(self.cFloorSphereNodePath, self.pusherFloor)
@@ -440,7 +442,7 @@ class GravityWalker(DirectObject.DirectObject):
             self.slideSpeed *= GravityWalker.DiagonalFactor
 
         debugRunning = inputState.isSet("debugRunning")
-        if(debugRunning):
+        if debugRunning:
             self.speed*=base.debugRunningMultiplier
             self.slideSpeed*=base.debugRunningMultiplier
             self.rotationSpeed*=1.25

direct/src/controls/InputState.py

@@ -1,6 +1,8 @@
 from direct.directnotify import DirectNotifyGlobal
 from direct.showbase import DirectObject
 from direct.showbase.PythonUtil import SerialNumGen
+from direct.showbase.MessengerGlobal import messenger
+
 
 # internal class, don't create these on your own
 class InputStateToken:

direct/src/controls/NonPhysicsWalker.py

@@ -20,7 +20,9 @@ from direct.directnotify import DirectNotifyGlobal
 from direct.showbase import DirectObject
 from direct.controls.ControlManager import CollisionHandlerRayStart
 from direct.showbase.InputStateGlobal import inputState
+from direct.showbase.MessengerGlobal import messenger
 from direct.task.Task import Task
+from direct.task.TaskManagerGlobal import taskMgr
 from panda3d.core import *
 
 class NonPhysicsWalker(DirectObject.DirectObject):
@@ -184,7 +186,7 @@ class NonPhysicsWalker(DirectObject.DirectObject):
         tempCTrav = CollisionTraverser("oneTimeCollide")
         tempCTrav.addCollider(self.cSphereNodePath, self.pusher)
         tempCTrav.addCollider(self.cRayNodePath, self.lifter)
-        tempCTrav.traverse(render)
+        tempCTrav.traverse(base.render)
 
     def addBlastForce(self, vector):
         pass
@@ -268,12 +270,12 @@ class NonPhysicsWalker(DirectObject.DirectObject):
         else:
             self.vel.set(0.0, 0.0, 0.0)
 
-        self.__oldPosDelta = self.avatarNodePath.getPosDelta(render)
+        self.__oldPosDelta = self.avatarNodePath.getPosDelta(base.render)
         self.__oldDt = dt
 
-        try:
-            self.worldVelocity = self.__oldPosDelta*(1/self.__oldDt)
-        except:
+        if self.__oldDt != 0:
+            self.worldVelocity = self.__oldPosDelta * (1 / self.__oldDt)
+        else:
             # divide by zero
             self.worldVelocity = 0
 

direct/src/controls/ObserverWalker.py

@@ -31,9 +31,6 @@ class ObserverWalker(NonPhysicsWalker.NonPhysicsWalker):
         """
         Set up the avatar for collisions
         """
-        """
-        Set up the avatar for collisions
-        """
         assert not avatarNodePath.isEmpty()
 
         self.cTrav = collisionTraverser
@@ -102,11 +99,9 @@ class ObserverWalker(NonPhysicsWalker.NonPhysicsWalker):
         Activate the arrow keys, etc.
         """
         assert self.debugPrint("enableAvatarControls")
-        pass
 
     def disableAvatarControls(self):
         """
         Ignore the arrow keys, etc.
         """
         assert self.debugPrint("disableAvatarControls")
-        pass

direct/src/controls/PhysicsWalker.py

@@ -20,12 +20,14 @@ from direct.directnotify import DirectNotifyGlobal
 from direct.showbase import DirectObject
 from direct.controls.ControlManager import CollisionHandlerRayStart
 from direct.showbase.InputStateGlobal import inputState
+from direct.showbase.MessengerGlobal import messenger
 from direct.task.Task import Task
-from panda3d.core import *
-from panda3d.physics import *
+from direct.task.TaskManagerGlobal import taskMgr
 from direct.extensions_native import Mat3_extensions
 from direct.extensions_native import VBase3_extensions
 from direct.extensions_native import VBase4_extensions
+from panda3d.core import *
+from panda3d.physics import *
 import math
 
 #import LineStream
@@ -131,11 +133,6 @@ class PhysicsWalker(DirectObject.DirectObject):
             assert onScreenDebug.add("height", height.getZ())
             return height.getZ() - self.floorOffset
         else: # useCollisionHandlerQueue
-            """
-            returns the height of the avatar above the ground.
-            If there is no floor below the avatar, 0.0 is returned.
-            aka get airborne height.
-            """
             height = 0.0
             #*#self.cRayTrav.traverse(render)
             if self.cRayQueue.getNumEntries() != 0:
@@ -239,7 +236,7 @@ class PhysicsWalker(DirectObject.DirectObject):
         self.floorOffset = floorOffset = 7.0
 
         self.avatarNodePath = self.setupPhysics(avatarNodePath)
-        if 0 or self.useHeightRay:
+        if self.useHeightRay:
             #self.setupRay(floorBitmask, avatarRadius)
             self.setupRay(floorBitmask, 0.0)
         self.setupSphere(wallBitmask|floorBitmask, avatarRadius)
@@ -257,14 +254,14 @@ class PhysicsWalker(DirectObject.DirectObject):
         self.cSphereNodePath.show()
         if indicator:
             # Indicator Node:
-            change=render.attachNewNode("change")
+            change = render.attachNewNode("change")
             #change.setPos(Vec3(1.0, 1.0, 1.0))
             #change.setHpr(0.0, 0.0, 0.0)
             change.setScale(0.1)
             #change.setColor(Vec4(1.0, 1.0, 1.0, 1.0))
             indicator.reparentTo(change)
 
-            indicatorNode=render.attachNewNode("physVelocityIndicator")
+            indicatorNode = render.attachNewNode("physVelocityIndicator")
             #indicatorNode.setScale(0.1)
             #indicatorNode.setP(90.0)
             indicatorNode.setPos(self.avatarNodePath, 0.0, 0.0, 6.0)
@@ -273,7 +270,7 @@ class PhysicsWalker(DirectObject.DirectObject):
 
             self.physVelocityIndicator=indicatorNode
             # Contact Node:
-            contactIndicatorNode=render.attachNewNode("physContactIndicator")
+            contactIndicatorNode = render.attachNewNode("physContactIndicator")
             contactIndicatorNode.setScale(0.25)
             contactIndicatorNode.setP(90.0)
             contactIndicatorNode.setPos(self.avatarNodePath, 0.0, 0.0, 5.0)
@@ -472,137 +469,103 @@ class PhysicsWalker(DirectObject.DirectObject):
                 onScreenDebug.add("posDelta1",
                     self.avatarNodePath.getPosDelta(render).pPrintValues())
 
-                if 0:
-                    onScreenDebug.add("posDelta3",
-                        render.getRelativeVector(
-                            self.avatarNodePath,
-                            self.avatarNodePath.getPosDelta(render)).pPrintValues())
-
-                if 0:
-                    onScreenDebug.add("gravity",
-                        self.gravity.getLocalVector().pPrintValues())
-                    onScreenDebug.add("priorParent",
-                        self.priorParent.getLocalVector().pPrintValues())
-                    onScreenDebug.add("avatarViscosity",
-                        "% 10.4f"%(self.avatarViscosity.getCoef(),))
-
-                    onScreenDebug.add("physObject pos",
-                        physObject.getPosition().pPrintValues())
-                    onScreenDebug.add("physObject hpr",
-                        physObject.getOrientation().getHpr().pPrintValues())
-                    onScreenDebug.add("physObject orien",
-                        physObject.getOrientation().pPrintValues())
-
-                if 1:
-                    onScreenDebug.add("physObject vel",
-                        physObject.getVelocity().pPrintValues())
-                    onScreenDebug.add("physObject len",
-                        "% 10.4f"%physObject.getVelocity().length())
-
-                if 0:
-                    onScreenDebug.add("posDelta4",
-                        self.priorParentNp.getRelativeVector(
-                            render,
-                            self.avatarNodePath.getPosDelta(render)).pPrintValues())
-
-                if 1:
-                    onScreenDebug.add("priorParent",
-                        self.priorParent.getLocalVector().pPrintValues())
-
-                if 0:
-                    onScreenDebug.add("priorParent po",
-                        self.priorParent.getVector(physObject).pPrintValues())
-
-                if 0:
-                    onScreenDebug.add("__posDelta",
-                        self.__oldPosDelta.pPrintValues())
-
-                if 1:
-                    onScreenDebug.add("contact",
-                        contact.pPrintValues())
-                    #onScreenDebug.add("airborneHeight", "% 10.4f"%(
-                    #    self.getAirborneHeight(),))
-
-                if 0:
-                    onScreenDebug.add("__oldContact",
-                        contact.pPrintValues())
-                    onScreenDebug.add("__oldAirborneHeight", "% 10.4f"%(
-                        self.getAirborneHeight(),))
-        airborneHeight=self.getAirborneHeight()
+                #onScreenDebug.add("posDelta3",
+                #    render.getRelativeVector(
+                #        self.avatarNodePath,
+                #        self.avatarNodePath.getPosDelta(render)).pPrintValues())
+
+                #onScreenDebug.add("gravity",
+                #    self.gravity.getLocalVector().pPrintValues())
+                #onScreenDebug.add("priorParent",
+                #    self.priorParent.getLocalVector().pPrintValues())
+                #onScreenDebug.add("avatarViscosity",
+                #    "% 10.4f"%(self.avatarViscosity.getCoef(),))
+                #
+                #onScreenDebug.add("physObject pos",
+                #    physObject.getPosition().pPrintValues())
+                #onScreenDebug.add("physObject hpr",
+                #    physObject.getOrientation().getHpr().pPrintValues())
+                #onScreenDebug.add("physObject orien",
+                #    physObject.getOrientation().pPrintValues())
+
+                onScreenDebug.add("physObject vel",
+                    physObject.getVelocity().pPrintValues())
+                onScreenDebug.add("physObject len",
+                    "% 10.4f"%physObject.getVelocity().length())
+
+                #onScreenDebug.add("posDelta4",
+                #    self.priorParentNp.getRelativeVector(
+                #        render,
+                #        self.avatarNodePath.getPosDelta(render)).pPrintValues())
+
+                onScreenDebug.add("priorParent",
+                    self.priorParent.getLocalVector().pPrintValues())
+
+                #onScreenDebug.add("priorParent po",
+                #    self.priorParent.getVector(physObject).pPrintValues())
+
+                #onScreenDebug.add("__posDelta",
+                #    self.__oldPosDelta.pPrintValues())
+
+                onScreenDebug.add("contact",
+                    contact.pPrintValues())
+                #onScreenDebug.add("airborneHeight", "% 10.4f"%(
+                #    self.getAirborneHeight(),))
+
+                #onScreenDebug.add("__oldContact",
+                #    contact.pPrintValues())
+                #onScreenDebug.add("__oldAirborneHeight", "% 10.4f"%(
+                #    self.getAirborneHeight(),))
+        airborneHeight = self.getAirborneHeight()
         if airborneHeight > self.highMark:
             self.highMark = airborneHeight
             if __debug__:
                 onScreenDebug.add("highMark", "% 10.4f"%(self.highMark,))
         #if airborneHeight < 0.1: #contact!=Vec3.zero():
-        if 1:
-            if (airborneHeight > self.avatarRadius*0.5
-                    or physObject.getVelocity().getZ() > 0.0
-                    ): # Check stair angles before changing this.
-                # ...the avatar is airborne (maybe a lot or a tiny amount).
-                self.isAirborne = 1
-            else:
-                # ...the avatar is very close to the ground (close enough to be
-                # considered on the ground).
-                if self.isAirborne and physObject.getVelocity().getZ() <= 0.0:
-                    # ...the avatar has landed.
-                    contactLength = contact.length()
-                    if contactLength>self.__hardLandingForce:
-                        #print "jumpHardLand"
-                        messenger.send("jumpHardLand")
-                    else:
-                        #print "jumpLand"
-                        messenger.send("jumpLand")
-                    self.priorParent.setVector(Vec3.zero())
-                    self.isAirborne = 0
-                elif jump:
-                    #print "jump"
-                    #self.__jumpButton=0
-                    messenger.send("jumpStart")
-                    if 0:
-                        # ...jump away from walls and with with the slope normal.
-                        jumpVec=Vec3(contact+Vec3.up())
-                        #jumpVec=Vec3(rotAvatarToPhys.xform(jumpVec))
-                        jumpVec.normalize()
-                    else:
-                        # ...jump straight up, even if next to a wall.
-                        jumpVec=Vec3.up()
-                    jumpVec*=self.avatarControlJumpForce
-                    physObject.addImpulse(Vec3(jumpVec))
-                    self.isAirborne = 1 # Avoid double impulse before fully airborne.
-                else:
-                    self.isAirborne = 0
-            if __debug__:
-                onScreenDebug.add("isAirborne", "%d"%(self.isAirborne,))
+        if (airborneHeight > self.avatarRadius*0.5
+                or physObject.getVelocity().getZ() > 0.0
+                ): # Check stair angles before changing this.
+            # ...the avatar is airborne (maybe a lot or a tiny amount).
+            self.isAirborne = 1
         else:
-            if contact!=Vec3.zero():
-                # ...the avatar has touched something (but might not be on the ground).
+            # ...the avatar is very close to the ground (close enough to be
+            # considered on the ground).
+            if self.isAirborne and physObject.getVelocity().getZ() <= 0.0:
+                # ...the avatar has landed.
                 contactLength = contact.length()
-                contact.normalize()
-                angle=contact.dot(Vec3.up())
-                if angle>self.__standableGround:
-                    # ...avatar is on standable ground.
-                    if self.__oldContact==Vec3.zero():
-                    #if self.__oldAirborneHeight > 0.1: #self.__oldContact==Vec3.zero():
-                        # ...avatar was airborne.
-                        self.jumpCount-=1
-                        if contactLength>self.__hardLandingForce:
-                            messenger.send("jumpHardLand")
-                        else:
-                            messenger.send("jumpLand")
-                    elif jump:
-                        self.jumpCount+=1
-                        #self.__jumpButton=0
-                        messenger.send("jumpStart")
-                        jump=Vec3(contact+Vec3.up())
-                        #jump=Vec3(rotAvatarToPhys.xform(jump))
-                        jump.normalize()
-                        jump*=self.avatarControlJumpForce
-                        physObject.addImpulse(Vec3(jump))
-
-        if contact!=self.__oldContact:
+                if contactLength>self.__hardLandingForce:
+                    #print "jumpHardLand"
+                    messenger.send("jumpHardLand")
+                else:
+                    #print "jumpLand"
+                    messenger.send("jumpLand")
+                self.priorParent.setVector(Vec3.zero())
+                self.isAirborne = 0
+            elif jump:
+                #print "jump"
+                #self.__jumpButton = 0
+                messenger.send("jumpStart")
+
+                ## ...jump away from walls and with with the slope normal.
+                #jumpVec=Vec3(contact+Vec3.up())
+                ##jumpVec=Vec3(rotAvatarToPhys.xform(jumpVec))
+                #jumpVec.normalize()
+
+                # ...jump straight up, even if next to a wall.
+                jumpVec=Vec3.up()
+
+                jumpVec *= self.avatarControlJumpForce
+                physObject.addImpulse(Vec3(jumpVec))
+                self.isAirborne = 1 # Avoid double impulse before fully airborne.
+            else:
+                self.isAirborne = 0
+        if __debug__:
+            onScreenDebug.add("isAirborne", "%d"%(self.isAirborne,))
+
+        if contact != self.__oldContact:
             # We must copy the vector to preserve it:
-            self.__oldContact=Vec3(contact)
-        self.__oldAirborneHeight=airborneHeight
+            self.__oldContact = Vec3(contact)
+        self.__oldAirborneHeight = airborneHeight
 
         moveToGround = Vec3.zero()
         if not self.useHeightRay or self.isAirborne:
@@ -741,7 +704,7 @@ class PhysicsWalker(DirectObject.DirectObject):
     if __debug__:
         def setupAvatarPhysicsIndicator(self):
             if self.wantDebugIndicator:
-                indicator=loader.loadModel('phase_5/models/props/dagger')
+                indicator = base.loader.loadModel('phase_5/models/props/dagger')
                 #self.walkControls.setAvatarPhysicsIndicator(indicator)
 
         def debugPrint(self, message):

direct/src/controls/TwoDWalker.py

@@ -3,6 +3,7 @@ TwoDWalker.py is for controlling the avatars in a 2D scroller game environment.
 """
 
 from .GravityWalker import *
+from direct.showbase.MessengerGlobal import messenger
 from panda3d.core import ConfigVariableBool
 
 

direct/src/directbase/TestStart.py

@@ -7,22 +7,9 @@ from direct.showbase import ShowBase
 base = ShowBase.ShowBase()
 
 # Put an axis in the world:
-loader.loadModel("models/misc/xyzAxis").reparentTo(render)
+base.loader.loadModel("models/misc/xyzAxis").reparentTo(render)
 
-if 0:
-    # Hack:
-    # Enable drive mode but turn it off, and reset the camera
-    # This is here because ShowBase sets up a drive interface, this
-    # can be removed if ShowBase is changed to not set that up.
-    base.useDrive()
-    base.disableMouse()
-    if base.mouseInterface:
-        base.mouseInterface.reparentTo(base.dataUnused)
-    if base.mouse2cam:
-        base.mouse2cam.reparentTo(base.dataUnused)
-    # end of hack.
-
-camera.setPosHpr(0, -10.0, 0, 0, 0, 0)
+base.camera.setPosHpr(0, -10.0, 0, 0, 0, 0)
 base.camLens.setFov(52.0)
 base.camLens.setNearFar(1.0, 10000.0)
 

direct/src/directbase/ThreeUpStart.py

@@ -5,25 +5,13 @@ from panda3d.core import *
 
 from direct.showbase.PythonUtil import *
 from direct.showbase import ThreeUpShow
-ThreeUpShow.ThreeUpShow()
+
+base = ThreeUpShow.ThreeUpShow()
 
 # Put an axis in the world:
-loader.loadModel("models/misc/xyzAxis").reparentTo(render)
-
-if 0:
-    # Hack:
-    # Enable drive mode but turn it off, and reset the camera
-    # This is here because ShowBase sets up a drive interface, this
-    # can be removed if ShowBase is changed to not set that up.
-    base.useDrive()
-    base.disableMouse()
-    if base.mouseInterface:
-        base.mouseInterface.reparentTo(base.dataUnused)
-    if base.mouse2cam:
-        base.mouse2cam.reparentTo(base.dataUnused)
-    # end of hack.
-
-camera.setPosHpr(0, -10.0, 0, 0, 0, 0)
+base.loader.loadModel("models/misc/xyzAxis").reparentTo(render)
+
+base.camera.setPosHpr(0, -10.0, 0, 0, 0, 0)
 base.camLens.setFov(52.0)
 base.camLens.setNearFar(1.0, 10000.0)
 

direct/src/directdevices/DirectDeviceManager.py

@@ -14,7 +14,7 @@ class DirectDeviceManager(VrpnClient, DirectObject):
     def __init__(self, server = None):
 
         # Determine which server to use
-        if server != None:
+        if server is not None:
             # One given as constructor argument
             self.server = server
         else:
@@ -77,10 +77,10 @@ class DirectButtons(ButtonNode, DirectObject):
         return self.nodePath
 
     def __repr__(self):
-        str = self.name + ': '
+        string = self.name + ': '
         for val in self:
-            str = str + '%d' % val + ' '
-        return str
+            string = string + '%d' % val + ' '
+        return string
 
 class DirectAnalogs(AnalogNode, DirectObject):
     analogCount = 0
@@ -149,12 +149,12 @@ class DirectAnalogs(AnalogNode, DirectObject):
         aMin = self.analogMin
         center = self.analogCenter
         deadband = self.analogDeadband
-        range = self.analogRange
+
         # Zero out values in deadband
-        if (abs(rawValue-center) <= deadband):
+        if abs(rawValue - center) <= deadband:
             return 0.0
         # Clamp value between aMin and aMax and scale around center
-        if (rawValue >= center):
+        if rawValue >= center:
             # Convert positive values to range 0 to 1
             val = min(rawValue * sf, aMax)
             percentVal = ((val - (center + deadband))/
@@ -165,7 +165,7 @@ class DirectAnalogs(AnalogNode, DirectObject):
             percentVal = -((val - (center - deadband))/
                            float(aMin - (center - deadband)))
         # Normalize values to given minVal and maxVal range
-        return (((maxVal - minVal) * ((percentVal + 1)/2.0)) + minVal)
+        return ((maxVal - minVal) * ((percentVal + 1)/2.0)) + minVal
 
     def normalizeChannel(self, chan, minVal = -1, maxVal = 1, sf = 1.0):
         try:
@@ -180,13 +180,14 @@ class DirectAnalogs(AnalogNode, DirectObject):
         return self.nodePath
 
     def __repr__(self):
-        str = self.name + ': '
+        string = self.name + ': '
         for val in self:
-            str = str + '%.3f' % val + ' '
-        return str
+            string = string + '%.3f' % val + ' '
+        return string
 
 class DirectTracker(TrackerNode, DirectObject):
     trackerCount = 0
+
     def __init__(self, vrpnClient, device):
         # Keep track of number of trackers created
         DirectTracker.trackerCount += 1
@@ -257,10 +258,10 @@ class DirectDials(DialNode, DirectObject):
         return self.nodePath
 
     def __repr__(self):
-        str = self.name + ': '
+        string = self.name + ': '
         for i in range(self.getNumDials()):
-            str = str + '%.3f' % self[i] + ' '
-        return str
+            string = string + '%.3f' % self[i] + ' '
+        return string
 
 class DirectTimecodeReader(AnalogNode, DirectObject):
     timecodeReaderCount = 0
@@ -316,5 +317,5 @@ class DirectTimecodeReader(AnalogNode, DirectObject):
                 self.totalSeconds)
 
     def __repr__(self):
-        str = ('%s: %d:%d:%d:%d' % ((self.name,) + self.getTime()[:-1]))
-        return str
+        string = ('%s: %d:%d:%d:%d' % ((self.name,) + self.getTime()[:-1]))
+        return string

direct/src/directdevices/DirectFastrak.py

@@ -1,14 +1,12 @@
 """ Class used to create and control radamec device """
-from math import *
 from direct.showbase.DirectObject import DirectObject
+from direct.task.Task import Task
+from direct.task.TaskManagerGlobal import taskMgr
 from .DirectDeviceManager import *
 
 from direct.directnotify import DirectNotifyGlobal
 
-"""
-TODO:
-Handle interaction between widget, followSelectedTask and updateTask
-"""
+#TODO: Handle interaction between widget, followSelectedTask and updateTask
 
 # ANALOGS
 NULL_AXIS = -1
@@ -65,4 +63,3 @@ class DirectFastrak(DirectObject):
                                3.280839895013123 * pos[1],
                                3.280839895013123 * pos[0])
         self.notify.debug("Tracker(%d) Pos = %s" % (self.deviceNo, repr(self.trackerPos)))
-

direct/src/directdevices/DirectJoybox.py

@@ -4,12 +4,10 @@ from .DirectDeviceManager import *
 from direct.directtools.DirectUtil import *
 from direct.gui import OnscreenText
 from direct.task import Task
+from direct.task.TaskManagerGlobal import taskMgr
 import math
 
-"""
-TODO:
-Handle interaction between widget, followSelectedTask and updateTask
-"""
+#TODO: Handle interaction between widget, followSelectedTask and updateTask
 
 # BUTTONS
 L_STICK = 0
@@ -39,10 +37,11 @@ class DirectJoybox(DirectObject):
     joyboxCount = 0
     xyzMultiplier = 1.0
     hprMultiplier = 1.0
+
     def __init__(self, device = 'CerealBox', nodePath = base.direct.camera,
                  headingNP = base.direct.camera):
         # See if device manager has been initialized
-        if base.direct.deviceManager == None:
+        if base.direct.deviceManager is None:
             base.direct.deviceManager = DirectDeviceManager()
         # Set name
         DirectJoybox.joyboxCount += 1
@@ -172,12 +171,12 @@ class DirectJoybox(DirectObject):
         for chan in range(len(self.analogs)):
             val = self.analogs.getControlState(chan)
             # Zero out values in deadband
-            if (val < 0):
+            if val < 0:
                 val = min(val + ANALOG_DEADBAND, 0.0)
             else:
                 val = max(val - ANALOG_DEADBAND, 0.0)
             # Scale up rotating knob values
-            if (chan == L_TWIST) or (chan == R_TWIST):
+            if chan == L_TWIST or chan == R_TWIST:
                 val *= 3.0
             # Now clamp value between minVal and maxVal
             val = CLAMP(val, JOYBOX_MIN, JOYBOX_MAX)
@@ -240,7 +239,7 @@ class DirectJoybox(DirectObject):
 
     def joyboxFly(self):
         # Do nothing if no nodePath selected
-        if self.nodePath == None:
+        if self.nodePath is None:
             return
         hprScale = ((self.aList[L_SLIDE] + 1.0) *
                     50.0 * DirectJoybox.hprMultiplier)
@@ -264,14 +263,14 @@ class DirectJoybox(DirectObject):
         # if we are using a heading nodepath, we want
         # to drive in the direction we are facing,
         # however, we don't want the z component to change
-        if (self.useHeadingNP and self.headingNP != None):
+        if self.useHeadingNP and self.headingNP is not None:
             oldZ = pos.getZ()
             pos = self.nodePath.getRelativeVector(self.headingNP,
                                                   pos)
             pos.setZ(oldZ)
             # if we are using a heading NP we might want to rotate
             # in place around that NP
-            if (self.rotateInPlace):
+            if self.rotateInPlace:
                 parent = self.nodePath.getParent()
                 self.floatingNP.reparentTo(parent)
                 self.floatingNP.setPos(self.headingNP,0,0,0)
@@ -389,7 +388,7 @@ class DirectJoybox(DirectObject):
 
     def spaceFly(self):
         # Do nothing if no nodePath selected
-        if self.nodePath == None:
+        if self.nodePath is None:
             return
         hprScale = (self.normalizeChannel(L_SLIDE, 0.1, 100) *
                     DirectJoybox.hprMultiplier)
@@ -408,7 +407,7 @@ class DirectJoybox(DirectObject):
 
     def planetFly(self):
         # Do nothing if no nodePath selected
-        if self.nodePath == None:
+        if self.nodePath is None:
             return
         hprScale = (self.normalizeChannel(L_SLIDE, 0.1, 100) *
                     DirectJoybox.hprMultiplier)
@@ -459,7 +458,7 @@ class DirectJoybox(DirectObject):
 
     def orbitFly(self):
         # Do nothing if no nodePath selected
-        if self.nodePath == None:
+        if self.nodePath is None:
             return
         hprScale = (self.normalizeChannel(L_SLIDE, 0.1, 100) *
                     DirectJoybox.hprMultiplier)
@@ -502,7 +501,7 @@ class DirectJoybox(DirectObject):
     # correct the ranges of the two twist axes of the joybox.
     def normalizeChannel(self, chan, minVal = -1, maxVal = 1):
         try:
-            if (chan == L_TWIST) or (chan == R_TWIST):
+            if chan == L_TWIST or chan == R_TWIST:
                 # These channels have reduced range
                 return self.analogs.normalize(
                     self.analogs.getControlState(chan), minVal, maxVal, 3.0)
@@ -511,5 +510,3 @@ class DirectJoybox(DirectObject):
                     self.analogs.getControlState(chan), minVal, maxVal)
         except IndexError:
             return 0.0
-
-

direct/src/directdevices/DirectRadamec.py

@@ -1,15 +1,13 @@
 """ Class used to create and control radamec device """
 from math import *
 from direct.showbase.DirectObject import DirectObject
+from direct.task.Task import Task
+from direct.task.TaskManagerGlobal import taskMgr
 from .DirectDeviceManager import *
 
 from direct.directnotify import DirectNotifyGlobal
 
-
-"""
-TODO:
-Handle interaction between widget, followSelectedTask and updateTask
-"""
+#TODO: Handle interaction between widget, followSelectedTask and updateTask
 
 # ANALOGS
 RAD_PAN = 0
@@ -23,7 +21,7 @@ class DirectRadamec(DirectObject):
 
     def __init__(self, device = 'Analog0', nodePath = None):
         # See if device manager has been initialized
-        if base.direct.deviceManager == None:
+        if base.direct.deviceManager is None:
             base.direct.deviceManager = DirectDeviceManager()
         # Set name
         self.name = 'Radamec-' + repr(DirectRadamec.radamecCount)
@@ -73,11 +71,12 @@ class DirectRadamec(DirectObject):
     # Normalize to the range [-minVal, maxVal] based on some hard-coded
     # max/min numbers of the Radamec device
     def normalizeChannel(self, chan, minVal = -1, maxVal = 1):
-        try:
-            maxRange = self.maxRange[chan]
-            minRange = self.minRange[chan]
-        except IndexError:
+        if chan < 0 or chan >= min(len(self.maxRange), len(self.minRange)):
             raise RuntimeError("can't normalize this channel (channel %d)" % chan)
-        range = maxRange - minRange
-        clampedVal = CLAMP(self.aList[chan], minRange, maxRange)
-        return ((maxVal - minVal) * (clampedVal - minRange) / range) + minVal
+
+        maxRange = self.maxRange[chan]
+        minRange = self.minRange[chan]
+
+        diff = maxRange - minRange
+        clampedVal = max(min(self.aList[chan], maxRange), maxRange)
+        return ((maxVal - minVal) * (clampedVal - minRange) / diff) + minVal

direct/src/directnotify/DirectNotify.py

@@ -41,17 +41,17 @@ class DirectNotify:
         """getCategory(self, string)
         Return the category with given name if present, None otherwise
         """
-        return (self.__categories.get(categoryName, None))
+        return self.__categories.get(categoryName, None)
 
     def newCategory(self, categoryName, logger=None):
         """newCategory(self, string)
         Make a new notify category named categoryName. Return new category
         if no such category exists, else return existing category
         """
-        if (categoryName not in self.__categories):
+        if categoryName not in self.__categories:
             self.__categories[categoryName] = Notifier.Notifier(categoryName, logger)
             self.setDconfigLevel(categoryName)
-        return (self.getCategory(categoryName))
+        return self.getCategory(categoryName)
 
     def setDconfigLevel(self, categoryName):
         """

direct/src/directnotify/Logger.py

@@ -4,6 +4,7 @@
 import time
 import math
 
+
 class Logger:
     def __init__(self, fileName="log"):
         """
@@ -14,18 +15,17 @@ class Logger:
         self.__logFile = None
         self.__logFileName = fileName
 
-    def setTimeStamp(self, bool):
+    def setTimeStamp(self, enable):
         """
         Toggle time stamp printing with log entries on and off
         """
-        self.__timeStamp = bool
+        self.__timeStamp = enable
 
     def getTimeStamp(self):
         """
         Return whether or not we are printing time stamps with log entries
         """
-        return(self.__timeStamp)
-
+        return self.__timeStamp
 
     # logging control
 
@@ -38,13 +38,12 @@ class Logger:
     def log(self, entryString):
         """log(self, string)
         Print the given string to the log file"""
-        if (self.__logFile == None):
+        if self.__logFile is None:
             self.__openLogFile()
-        if (self.__timeStamp):
+        if self.__timeStamp:
             self.__logFile.write(self.__getTimeStamp())
         self.__logFile.write(entryString + '\n')
 
-
     # logging functions
 
     def __openLogFile(self):
@@ -61,7 +60,7 @@ class Logger:
         """
         Close the error/warning output file
         """
-        if (self.__logFile != None):
+        if self.__logFile is not None:
             self.__logFile.close()
 
     def __getTimeStamp(self):
@@ -70,22 +69,8 @@ class Logger:
         """
         t = time.time()
         dt = t - self.__startTime
-        if (dt >= 86400):
-            days = int(math.floor(dt/86400))
-            dt = dt%86400
-        else:
-            days = 0
-        if (dt >= 3600):
-            hours = int(math.floor(dt/3600))
-            dt = dt%3600
-        else:
-            hours = 0
-        if (dt >= 60):
-            minutes = int(math.floor(dt/60))
-            dt = dt%60
-        else:
-            minutes = 0
+        days, dt = divmod(dt, 86400)
+        hours, dt = divmod(dt, 3600)
+        minutes, dt = divmod(dt, 60)
         seconds = int(math.ceil(dt))
-        return("%02d:%02d:%02d:%02d: " % (days, hours, minutes, seconds))
-
-
+        return "%02d:%02d:%02d:%02d: " % (days, hours, minutes, seconds)

direct/src/directnotify/Notifier.py

@@ -32,7 +32,7 @@ class Notifier:
         """
         self.__name = name
 
-        if (logger==None):
+        if logger is None:
             self.__logger = defaultLogger
         else:
             self.__logger = logger
@@ -144,17 +144,17 @@ class Notifier:
             self.__print(string)
         return 1 # to allow assert myNotify.warning("blah")
 
-    def setWarning(self, bool):
+    def setWarning(self, enable):
         """
         Enable/Disable the printing of warning messages
         """
-        self.__warning = bool
+        self.__warning = enable
 
     def getWarning(self):
         """
         Return whether the printing of warning messages is on or off
         """
-        return(self.__warning)
+        return self.__warning
 
     # debug funcs
     def debug(self, debugString):
@@ -171,11 +171,11 @@ class Notifier:
             self.__print(string)
         return 1 # to allow assert myNotify.debug("blah")
 
-    def setDebug(self, bool):
+    def setDebug(self, enable):
         """
         Enable/Disable the printing of debug messages
         """
-        self.__debug = bool
+        self.__debug = enable
 
     def getDebug(self):
         """
@@ -204,11 +204,11 @@ class Notifier:
         """
         return self.__info
 
-    def setInfo(self, bool):
+    def setInfo(self, enable):
         """
         Enable/Disable informational message  printing
         """
-        self.__info = bool
+        self.__info = enable
 
     # log funcs
     def __log(self, logEntry):
@@ -222,13 +222,13 @@ class Notifier:
         """
         Return 1 if logging enabled, 0 otherwise
         """
-        return (self.__logging)
+        return self.__logging
 
-    def setLogging(self, bool):
+    def setLogging(self, enable):
         """
         Set the logging flag to int (1=on, 0=off)
         """
-        self.__logging = bool
+        self.__logging = enable
 
     def __print(self, string):
         """
@@ -297,4 +297,3 @@ class Notifier:
             self.__log(string)
             self.__print(string)
         return 1 # to allow assert self.notify.debugCall("blah")
-

direct/src/directscripts/eggcacher.py

@@ -8,7 +8,9 @@
 #
 ##############################################################################
 
-import os,sys,gc
+import os
+import sys
+import gc
 from panda3d.core import *
 
 class EggCacher:
@@ -18,7 +20,7 @@ class EggCacher:
         self.bamcache = BamCache.getGlobalPtr()
         self.pandaloader = Loader()
         self.loaderopts = LoaderOptions(LoaderOptions.LF_no_ram_cache)
-        if (self.bamcache.getActive() == 0):
+        if not self.bamcache.getActive():
             print("The model cache is not currently active.")
             print("You must set a model-cache-dir in your config file.")
             sys.exit(1)
@@ -29,42 +31,44 @@ class EggCacher:
     def parseArgs(self, args):
         self.concise = 0
         self.pzkeep = 0
-        while len(args):
-            if (args[0]=="--concise"):
+        while len(args) > 0:
+            if args[0] == "--concise":
                 self.concise = 1
                 args = args[1:]
-            elif (args[0]=="--pzkeep"):
+            elif args[0] == "--pzkeep":
                 self.pzkeep = 1
                 args = args[1:]
             else:
                 break
-        if (len(args) < 1):
+        if len(args) < 1:
             print("Usage: eggcacher options file-or-directory")
             sys.exit(1)
         self.paths = args
 
     def scanPath(self, eggs, path):
-        if (os.path.exists(path)==0):
+        if not os.path.exists(path):
             print("No such file or directory: " + path)
             return
-        if (os.path.isdir(path)):
+        if os.path.isdir(path):
             for f in os.listdir(path):
                 self.scanPath(eggs, os.path.join(path,f))
             return
-        if (path.endswith(".egg")):
+        if path.endswith(".egg"):
             size = os.path.getsize(path)
             eggs.append((path,size))
             return
-        if (path.endswith(".egg.pz") or path.endswith(".egg.gz")):
+        if path.endswith(".egg.pz") or path.endswith(".egg.gz"):
             size = os.path.getsize(path)
-            if (self.pzkeep): eggs.append((path,size))
-            else: eggs.append((path[:-3],size))
+            if self.pzkeep:
+                eggs.append((path, size))
+            else:
+                eggs.append((path[:-3], size))
 
     def scanPaths(self, paths):
         eggs = []
         for path in paths:
-            abs = os.path.abspath(path)
-            self.scanPath(eggs,path)
+            #abs = os.path.abspath(path)
+            self.scanPath(eggs, path)
         return eggs
 
     def processFiles(self, files):
@@ -72,15 +76,16 @@ class EggCacher:
         for (path, size) in files:
             total += size
         progress = 0
-        for (path,size) in files:
+        for (path, size) in files:
             fn = Filename.fromOsSpecific(path)
             cached = self.bamcache.lookup(fn, "bam")
             percent = (progress * 100) / total
             report = path
-            if (self.concise): report = os.path.basename(report)
+            if self.concise:
+                report = os.path.basename(report)
             print("Preprocessing Models %2d%% %s" % (percent, report))
             sys.stdout.flush()
-            if (cached) and (cached.hasData()==0):
+            if cached and not cached.hasData():
                 self.pandaloader.loadSync(fn, self.loaderopts)
             gc.collect()
             ModelPool.releaseAllModels()

direct/src/directscripts/extract_docs.py

@@ -10,8 +10,8 @@ from __future__ import print_function
 __all__ = []
 
 import os
-from distutils import sysconfig
-import panda3d, pandac
+import panda3d
+import pandac
 from panda3d.interrogatedb import *
 
 

direct/src/directtools/DirectCameraControl.py

@@ -6,6 +6,7 @@ from .DirectSelection import SelectionRay
 from direct.interval.IntervalGlobal import Sequence, Func
 from direct.directnotify import DirectNotifyGlobal
 from direct.task import Task
+from direct.task.TaskManagerGlobal import taskMgr
 
 CAM_MOVE_DURATION = 1.2
 COA_MARKER_SF = 0.0075
@@ -22,7 +23,7 @@ class DirectCameraControl(DirectObject):
         self.orthoViewRoll = 0.0
         self.lastView = 0
         self.coa = Point3(0, 100, 0)
-        self.coaMarker = loader.loadModel('models/misc/sphere')
+        self.coaMarker = base.loader.loadModel('models/misc/sphere')
         self.coaMarker.setName('DirectCameraCOAMarker')
         self.coaMarker.setTransparency(1)
         self.coaMarker.setColor(1, 0, 0, 0)
@@ -150,7 +151,7 @@ class DirectCameraControl(DirectObject):
     def __startManipulateCamera(self, func = None, task = None, ival = None):
         self.__stopManipulateCamera()
         if func:
-            assert(task is None)
+            assert task is None
             task = Task.Task(func)
         if task:
             self.manipulateCameraTask = taskMgr.add(task, 'manipulateCamera')
@@ -366,7 +367,7 @@ class DirectCameraControl(DirectObject):
                                 moveDir[2],
                                 hVal,
                                 0.0, 0.0)
-        if (self.lockRoll == True):
+        if self.lockRoll:
             # flatten roll
             base.direct.camera.setR(0)
 
@@ -449,7 +450,7 @@ class DirectCameraControl(DirectObject):
                                  (deltaX * base.direct.dr.fovH),
                                  (-deltaY * base.direct.dr.fovV),
                                  0.0)
-            if (self.lockRoll == True):
+            if self.lockRoll:
                 # flatten roll
                 base.direct.camera.setR(0)
             self.camManipRef.setPos(self.coaMarkerPos)
@@ -466,7 +467,7 @@ class DirectCameraControl(DirectObject):
                                     (deltaY * 180.0),
                                     0.0)
 
-            if (self.lockRoll == True):
+            if self.lockRoll:
                 # flatten roll
                 self.camManipRef.setR(0)
             base.direct.camera.setTransform(self.camManipRef, wrt)
@@ -491,7 +492,7 @@ class DirectCameraControl(DirectObject):
         deltaAngle = angle - state.lastAngle
         state.lastAngle = angle
         self.camManipRef.setHpr(self.camManipRef, 0, 0, deltaAngle)
-        if (self.lockRoll == True):
+        if self.lockRoll:
             # flatten roll
             self.camManipRef.setR(0)
         base.direct.camera.setTransform(self.camManipRef, wrt)
@@ -576,7 +577,7 @@ class DirectCameraControl(DirectObject):
         if not coaDist:
             coaDist = Vec3(self.coa - ZERO_POINT).length()
         # Place the marker in render space
-        if ref == None:
+        if ref is None:
             # KEH: use the current display region
             # ref = base.cam
             ref = base.direct.drList.getCurrentDr().cam
@@ -892,4 +893,3 @@ class DirectCameraControl(DirectObject):
 
     def removeManipulateCameraTask(self):
         self.__stopManipulateCamera()
-

direct/src/directtools/DirectGeometry.py

@@ -163,7 +163,7 @@ def getCrankAngle(center):
     # origin) in screen space
     x = base.direct.dr.mouseX - center[0]
     y = base.direct.dr.mouseY - center[2]
-    return (180 + rad2Deg(math.atan2(y, x)))
+    return 180 + rad2Deg(math.atan2(y, x))
 
 def relHpr(nodePath, base, h, p, r):
     # Compute nodePath2newNodePath relative to base coordinate system
@@ -205,9 +205,9 @@ def qSlerp(startQuat, endQuat, t):
         startQ.setJ(-1 * startQ.getJ())
         startQ.setK(-1 * startQ.getK())
         startQ.setR(-1 * startQ.getR())
-    if ((1.0 + cosOmega) > Q_EPSILON):
+    if (1.0 + cosOmega) > Q_EPSILON:
         # usual case
-        if ((1.0 - cosOmega) > Q_EPSILON):
+        if (1.0 - cosOmega) > Q_EPSILON:
             # usual case
             omega = math.acos(cosOmega)
             sinOmega = math.sin(omega)
@@ -240,4 +240,3 @@ def qSlerp(startQuat, endQuat, t):
         destQuat.setK(startScale * startQ.getK() +
                       endScale * endQuat.getK())
     return destQuat
-

direct/src/directtools/DirectGlobals.py

@@ -59,4 +59,3 @@ def LE_showInOneCam(nodePath, thisCamName):
     for camName in LE_CAM_MASKS:
         if camName != thisCamName:
             nodePath.hide(LE_CAM_MASKS[camName])
-

direct/src/directtools/DirectGrid.py

@@ -4,6 +4,7 @@ from direct.showbase.DirectObject import DirectObject
 from .DirectUtil import *
 from .DirectGeometry import *
 
+
 class DirectGrid(NodePath, DirectObject):
     def __init__(self,gridSize=100.0,gridSpacing=5.0,planeColor=(0.5,0.5,0.5,0.5),parent = None):
         # Initialize superclass
@@ -13,7 +14,7 @@ class DirectGrid(NodePath, DirectObject):
 
         # Load up grid parts to initialize grid object
         # Polygon used to mark grid plane
-        self.gridBack = loader.loadModel('models/misc/gridBack')
+        self.gridBack = base.loader.loadModel('models/misc/gridBack')
         self.gridBack.reparentTo(self)
         self.gridBack.setColor(*planeColor)
 
@@ -35,7 +36,7 @@ class DirectGrid(NodePath, DirectObject):
         self.centerLines.setThickness(3)
 
         # Small marker to hilight snap-to-grid point
-        self.snapMarker = loader.loadModel('models/misc/sphere')
+        self.snapMarker = base.loader.loadModel('models/misc/sphere')
         self.snapMarker.node().setName('gridSnapMarker')
         self.snapMarker.reparentTo(self)
         self.snapMarker.setColor(1, 0, 0, 1)
@@ -107,7 +108,7 @@ class DirectGrid(NodePath, DirectObject):
         center.create()
         minor.create()
         major.create()
-        if (self.gridBack):
+        if self.gridBack:
             self.gridBack.setScale(scaledSize)
 
     def setXyzSnap(self, fSnap):

direct/src/directtools/DirectLights.py

@@ -1,5 +1,7 @@
 
 from panda3d.core import *
+from direct.showbase.MessengerGlobal import messenger
+
 
 class DirectLight(NodePath):
     def __init__(self, light, parent):
@@ -58,21 +60,21 @@ class DirectLights(NodePath):
         nameList.sort()
         return nameList
 
-    def create(self, type):
-        type = type.lower()
-        if type == 'ambient':
+    def create(self, ltype):
+        ltype = ltype.lower()
+        if ltype == 'ambient':
             self.ambientCount += 1
             light = AmbientLight('ambient-' + repr(self.ambientCount))
             light.setColor(VBase4(.3, .3, .3, 1))
-        elif type == 'directional':
+        elif ltype == 'directional':
             self.directionalCount += 1
             light = DirectionalLight('directional-' + repr(self.directionalCount))
             light.setColor(VBase4(1))
-        elif type == 'point':
+        elif ltype == 'point':
             self.pointCount += 1
             light = PointLight('point-' + repr(self.pointCount))
             light.setColor(VBase4(1))
-        elif type == 'spot':
+        elif ltype == 'spot':
             self.spotCount += 1
             light = Spotlight('spot-' + repr(self.spotCount))
             light.setColor(VBase4(1))
@@ -130,6 +132,3 @@ class DirectLights(NodePath):
         Turn off the given directLight
         """
         render.clearLight(directLight)
-
-
-

direct/src/directtools/DirectManipulation.py

@@ -1,4 +1,5 @@
 from direct.showbase.DirectObject import DirectObject
+from direct.showbase.MessengerGlobal import messenger
 from .DirectGlobals import *
 from .DirectUtil import *
 from .DirectGeometry import *
@@ -6,6 +7,7 @@ from .DirectSelection import SelectionRay
 from direct.task import Task
 from copy import deepcopy
 
+
 class DirectManipulationControl(DirectObject):
     def __init__(self):
         # Create the grid
@@ -201,7 +203,7 @@ class DirectManipulationControl(DirectObject):
             ((abs (endY - startY)) < 0.01)):
             return
 
-        self.marquee = LineNodePath(render2d, 'marquee', 0.5, VBase4(.8, .6, .6, 1))
+        self.marquee = LineNodePath(base.render2d, 'marquee', 0.5, VBase4(.8, .6, .6, 1))
         self.marqueeInfo = (startX, startY, endX, endY)
         self.marquee.drawLines([
             [(startX, 0, startY), (startX, 0, endY)],
@@ -252,7 +254,7 @@ class DirectManipulationControl(DirectObject):
                 lens.extrude((endX, endY), nlr, flr)
                 lens.extrude((startX, endY), nll, fll)
 
-                marqueeFrustum = BoundingHexahedron(fll, flr, fur, ful, nll, nlr, nur, nul);
+                marqueeFrustum = BoundingHexahedron(fll, flr, fur, ful, nll, nlr, nur, nul)
                 marqueeFrustum.xform(base.direct.cam.getNetTransform().getMat())
 
                 base.marqueeFrustum = marqueeFrustum
@@ -273,13 +275,13 @@ class DirectManipulationControl(DirectObject):
 ##                     elif (skipFlags & SKIP_BACKFACE) and base.direct.iRay.isEntryBackfacing():
 ##                         # Skip, if backfacing poly
 ##                         pass
-                    elif ((skipFlags & SKIP_CAMERA) and
-                          (camera in geom.getAncestors())):
+                    elif (skipFlags & SKIP_CAMERA) and \
+                         (base.camera in geom.getAncestors()):
                         # Skip if parented to a camera.
                         continue
                     # Can pick unpickable, use the first visible node
-                    elif ((skipFlags & SKIP_UNPICKABLE) and
-                          (geom.getName() in base.direct.iRay.unpickable)):
+                    elif (skipFlags & SKIP_UNPICKABLE) and \
+                         (geom.getName() in base.direct.iRay.unpickable):
                         # Skip if in unpickable list
                         continue
 
@@ -486,7 +488,7 @@ class DirectManipulationControl(DirectObject):
         for tag in self.unmovableTagList:
             for selected in objects:
                 unmovableTag = selected.getTag(tag)
-                if (unmovableTag):
+                if unmovableTag:
                     # check value of unmovableTag to see if it is
                     # completely uneditable or if it allows only certain
                     # types of editing
@@ -498,7 +500,7 @@ class DirectManipulationControl(DirectObject):
         selectedList = base.direct.selected.getSelectedAsList()
         # See if any of the selected are completely uneditable
         editTypes = self.getEditTypes(selectedList)
-        if (editTypes & EDIT_TYPE_UNEDITABLE == EDIT_TYPE_UNEDITABLE):
+        if (editTypes & EDIT_TYPE_UNEDITABLE) == EDIT_TYPE_UNEDITABLE:
             return
         self.currEditTypes = editTypes
         if selectedList:
@@ -633,7 +635,7 @@ class DirectManipulationControl(DirectObject):
                 base.direct.widget.getMat(base.direct.selected.last))
         else:
             # Move the objects with the widget
-                base.direct.selected.moveWrtWidgetAll()
+            base.direct.selected.moveWrtWidgetAll()
         # Continue
         return Task.cont
 
@@ -811,11 +813,11 @@ class DirectManipulationControl(DirectObject):
         widgetAxis.normalize()
         if type == 'top?':
             # Check sign of angle between two vectors
-            return (widgetDir.dot(widgetAxis) < 0.)
+            return widgetDir.dot(widgetAxis) < 0.
         elif type == 'edge?':
             # Checking to see if we are viewing edge-on
             # Check angle between two vectors
-            return(abs(widgetDir.dot(widgetAxis)) < .2)
+            return abs(widgetDir.dot(widgetAxis)) < .2
 
     ### FREE MANIPULATION METHODS ###
     def xlateCamXZ(self, state):
@@ -1043,7 +1045,7 @@ class DirectManipulationControl(DirectObject):
         entry = base.direct.iRay.pickGeom(
             skipFlags = SKIP_HIDDEN | SKIP_BACKFACE | SKIP_CAMERA)
         # MRM: Need to handle moving COA
-        if (entry != None) and (base.direct.selected.last != None):
+        if entry is not None and base.direct.selected.last is not None:
             # Record undo point
             base.direct.pushUndo(base.direct.selected)
             # Record wrt matrix
@@ -1064,7 +1066,7 @@ class ObjectHandles(NodePath, DirectObject):
         NodePath.__init__(self)
 
         # Load up object handles model and assign it to self
-        self.assign(loader.loadModel('models/misc/objectHandles'))
+        self.assign(base.loader.loadModel('models/misc/objectHandles'))
         self.setName(name)
         self.scalingNode = self.getChild(0)
         self.scalingNode.setName('ohScalingNode')
@@ -1206,7 +1208,7 @@ class ObjectHandles(NodePath, DirectObject):
         self.reparentTo(hidden)
 
     def enableHandles(self, handles):
-        if type(handles) == list:
+        if isinstance(handles, list):
             for handle in handles:
                 self.enableHandle(handle)
         elif handles == 'x':
@@ -1255,7 +1257,7 @@ class ObjectHandles(NodePath, DirectObject):
             self.zScaleGroup.reparentTo(self.zHandles)
 
     def disableHandles(self, handles):
-        if type(handles) == list:
+        if isinstance(handles, list):
             for handle in handles:
                 self.disableHandle(handle)
         elif handles == 'x':
@@ -1640,7 +1642,7 @@ class ObjectHandles(NodePath, DirectObject):
         # by comparing lineDir with plane normals.  The plane with the
         # largest dotProduct is most "normal"
         if axis == 'x':
-            if (abs(lineDir.dot(Y_AXIS)) > abs(lineDir.dot(Z_AXIS))):
+            if abs(lineDir.dot(Y_AXIS)) > abs(lineDir.dot(Z_AXIS)):
                 self.hitPt.assign(
                     planeIntersect(lineOrigin, lineDir, ORIGIN, Y_AXIS))
             else:
@@ -1650,7 +1652,7 @@ class ObjectHandles(NodePath, DirectObject):
             self.hitPt.setY(0)
             self.hitPt.setZ(0)
         elif axis == 'y':
-            if (abs(lineDir.dot(X_AXIS)) > abs(lineDir.dot(Z_AXIS))):
+            if abs(lineDir.dot(X_AXIS)) > abs(lineDir.dot(Z_AXIS)):
                 self.hitPt.assign(
                     planeIntersect(lineOrigin, lineDir, ORIGIN, X_AXIS))
             else:
@@ -1660,7 +1662,7 @@ class ObjectHandles(NodePath, DirectObject):
             self.hitPt.setX(0)
             self.hitPt.setZ(0)
         elif axis == 'z':
-            if (abs(lineDir.dot(X_AXIS)) > abs(lineDir.dot(Y_AXIS))):
+            if abs(lineDir.dot(X_AXIS)) > abs(lineDir.dot(Y_AXIS)):
                 self.hitPt.assign(
                     planeIntersect(lineOrigin, lineDir, ORIGIN, X_AXIS))
             else:
@@ -1731,40 +1733,39 @@ class ObjectHandles(NodePath, DirectObject):
         return self.hitPt
 
 def drawBox(lines, center, sideLength):
-
-        l = sideLength * 0.5
-        lines.moveTo(center[0] + l, center[1] + l, center[2] + l)
-        lines.drawTo(center[0] + l, center[1] + l, center[2] - l)
-        lines.drawTo(center[0] + l, center[1] - l, center[2] - l)
-        lines.drawTo(center[0] + l, center[1] - l, center[2] + l)
-        lines.drawTo(center[0] + l, center[1] + l, center[2] + l)
-
-        lines.moveTo(center[0] - l, center[1] + l, center[2] + l)
-        lines.drawTo(center[0] - l, center[1] + l, center[2] - l)
-        lines.drawTo(center[0] - l, center[1] - l, center[2] - l)
-        lines.drawTo(center[0] - l, center[1] - l, center[2] + l)
-        lines.drawTo(center[0] - l, center[1] + l, center[2] + l)
-
-        lines.moveTo(center[0] + l, center[1] + l, center[2] + l)
-        lines.drawTo(center[0] + l, center[1] + l, center[2] - l)
-        lines.drawTo(center[0] - l, center[1] + l, center[2] - l)
-        lines.drawTo(center[0] - l, center[1] + l, center[2] + l)
-        lines.drawTo(center[0] + l, center[1] + l, center[2] + l)
-
-        lines.moveTo(center[0] + l, center[1] - l, center[2] + l)
-        lines.drawTo(center[0] + l, center[1] - l, center[2] - l)
-        lines.drawTo(center[0] - l, center[1] - l, center[2] - l)
-        lines.drawTo(center[0] - l, center[1] - l, center[2] + l)
-        lines.drawTo(center[0] + l, center[1] - l, center[2] + l)
-
-        lines.moveTo(center[0] + l, center[1] + l, center[2] + l)
-        lines.drawTo(center[0] - l, center[1] + l, center[2] + l)
-        lines.drawTo(center[0] - l, center[1] - l, center[2] + l)
-        lines.drawTo(center[0] + l, center[1] - l, center[2] + l)
-        lines.drawTo(center[0] + l, center[1] + l, center[2] + l)
-
-        lines.moveTo(center[0] + l, center[1] + l, center[2] - l)
-        lines.drawTo(center[0] - l, center[1] + l, center[2] - l)
-        lines.drawTo(center[0] - l, center[1] - l, center[2] - l)
-        lines.drawTo(center[0] + l, center[1] - l, center[2] - l)
-        lines.drawTo(center[0] + l, center[1] + l, center[2] - l)
+    l = sideLength * 0.5
+    lines.moveTo(center[0] + l, center[1] + l, center[2] + l)
+    lines.drawTo(center[0] + l, center[1] + l, center[2] - l)
+    lines.drawTo(center[0] + l, center[1] - l, center[2] - l)
+    lines.drawTo(center[0] + l, center[1] - l, center[2] + l)
+    lines.drawTo(center[0] + l, center[1] + l, center[2] + l)
+
+    lines.moveTo(center[0] - l, center[1] + l, center[2] + l)
+    lines.drawTo(center[0] - l, center[1] + l, center[2] - l)
+    lines.drawTo(center[0] - l, center[1] - l, center[2] - l)
+    lines.drawTo(center[0] - l, center[1] - l, center[2] + l)
+    lines.drawTo(center[0] - l, center[1] + l, center[2] + l)
+
+    lines.moveTo(center[0] + l, center[1] + l, center[2] + l)
+    lines.drawTo(center[0] + l, center[1] + l, center[2] - l)
+    lines.drawTo(center[0] - l, center[1] + l, center[2] - l)
+    lines.drawTo(center[0] - l, center[1] + l, center[2] + l)
+    lines.drawTo(center[0] + l, center[1] + l, center[2] + l)
+
+    lines.moveTo(center[0] + l, center[1] - l, center[2] + l)
+    lines.drawTo(center[0] + l, center[1] - l, center[2] - l)
+    lines.drawTo(center[0] - l, center[1] - l, center[2] - l)
+    lines.drawTo(center[0] - l, center[1] - l, center[2] + l)
+    lines.drawTo(center[0] + l, center[1] - l, center[2] + l)
+
+    lines.moveTo(center[0] + l, center[1] + l, center[2] + l)
+    lines.drawTo(center[0] - l, center[1] + l, center[2] + l)
+    lines.drawTo(center[0] - l, center[1] - l, center[2] + l)
+    lines.drawTo(center[0] + l, center[1] - l, center[2] + l)
+    lines.drawTo(center[0] + l, center[1] + l, center[2] + l)
+
+    lines.moveTo(center[0] + l, center[1] + l, center[2] - l)
+    lines.drawTo(center[0] - l, center[1] + l, center[2] - l)
+    lines.drawTo(center[0] - l, center[1] - l, center[2] - l)
+    lines.drawTo(center[0] + l, center[1] - l, center[2] - l)
+    lines.drawTo(center[0] + l, center[1] + l, center[2] - l)

direct/src/directtools/DirectSelection.py

@@ -1,4 +1,5 @@
 from direct.showbase.DirectObject import DirectObject
+from direct.showbase.MessengerGlobal import messenger
 from .DirectGlobals import *
 from .DirectUtil import *
 from .DirectGeometry import *
@@ -95,7 +96,7 @@ class SelectedNodePaths(DirectObject):
             dnp = self.getDeselectedDict(id)
             if dnp:
                 # Remove it from the deselected dictionary
-                del(self.deselectedDict[id])
+                del self.deselectedDict[id]
                 # Show its bounding box
                 dnp.highlight()
             else:
@@ -125,7 +126,7 @@ class SelectedNodePaths(DirectObject):
             # Hide its bounding box
             dnp.dehighlight()
             # Remove it from the selected dictionary
-            del(self.selectedDict[id])
+            del self.selectedDict[id]
             if dnp in self.selectedList: # [gjeon]
                 self.selectedList.remove(dnp)
             # And keep track of it in the deselected dictionary
@@ -308,7 +309,7 @@ class DirectBoundingBox:
         # Create a line segments object for the bbox
         lines = LineNodePath(hidden)
         lines.node().setName('bboxLines')
-        if (bboxColor):
+        if bboxColor:
             lines.setColor(VBase4(*bboxColor))
         else:
             lines.setColor(VBase4(1., 0., 0., 1.))
@@ -352,7 +353,7 @@ class DirectBoundingBox:
         return lines
 
     def setBoxColorScale(self, r, g, b, a):
-        if (self.lines):
+        if self.lines:
             self.lines.reset()
             self.lines = None
         self.lines = self.createBBoxLines((r, g, b, a))
@@ -564,13 +565,13 @@ class SelectionQueue(CollisionHandlerQueue):
             elif (skipFlags & SKIP_BACKFACE) and self.isEntryBackfacing(entry):
                 # Skip, if backfacing poly
                 pass
-            elif ((skipFlags & SKIP_CAMERA) and
-                  (camera in nodePath.getAncestors())):
+            elif (skipFlags & SKIP_CAMERA) and \
+                 (base.camera in nodePath.getAncestors()):
                 # Skip if parented to a camera.
                 pass
             # Can pick unpickable, use the first visible node
-            elif ((skipFlags & SKIP_UNPICKABLE) and
-                  (nodePath.getName() in self.unpickable)):
+            elif (skipFlags & SKIP_UNPICKABLE) and\
+                 (nodePath.getName() in self.unpickable):
                 # Skip if in unpickable list
                 pass
             elif base.direct and\
@@ -793,4 +794,3 @@ class SelectionSphere(SelectionQueue):
             targetNodePath = render
         self.collideWithBitMask(bitMask)
         return self.pick(targetNodePath, skipFlags)
-

direct/src/directtools/DirectSession.py

@@ -4,6 +4,7 @@ from panda3d.core import *
 from .DirectUtil import *
 
 from direct.showbase.DirectObject import DirectObject
+from direct.showbase.BulletinBoardGlobal import bulletinBoard as bboard
 from direct.task import Task
 
 from .DirectGlobals import DIRECT_NO_MOD
@@ -291,9 +292,8 @@ class DirectSession(DirectObject):
         self.passThroughKeys = ['v','b','l','p', 'r', 'shift-r', 's', 't','shift-a', 'w']
 
         if base.wantTk:
-            from direct.showbase import TkGlobal
             from direct.tkpanels import DirectSessionPanel
-            self.panel = DirectSessionPanel.DirectSessionPanel(parent = tkroot)
+            self.panel = DirectSessionPanel.DirectSessionPanel(parent = base.tkRoot)
         try:
             # Has the clusterMode been set externally (i.e. via the
             # bootstrap application?
@@ -385,14 +385,12 @@ class DirectSession(DirectObject):
     def oobe(self):
         # If oobeMode was never set, set it to false and create the
         # structures we need to implement OOBE.
-        try:
-            self.oobeMode
-        except:
+        if not hasattr(self, 'oobeMode'):
             self.oobeMode = 0
 
             self.oobeCamera = hidden.attachNewNode('oobeCamera')
 
-            self.oobeVis = loader.loadModel('models/misc/camera')
+            self.oobeVis = base.loader.loadModel('models/misc/camera')
             if self.oobeVis:
                 self.oobeVis.node().setFinal(1)
 
@@ -710,7 +708,7 @@ class DirectSession(DirectObject):
             else:
                 self.widget.showWidget()
             editTypes = self.manipulationControl.getEditTypes([dnp])
-            if (editTypes & EDIT_TYPE_UNEDITABLE == EDIT_TYPE_UNEDITABLE):
+            if (editTypes & EDIT_TYPE_UNEDITABLE) == EDIT_TYPE_UNEDITABLE:
                 self.manipulationControl.disableWidgetMove()
             else:
                 self.manipulationControl.enableWidgetMove()
@@ -1071,8 +1069,10 @@ class DirectSession(DirectObject):
         for iRay in self.iRayList:
             iRay.removeUnpickable(item)
 
+
 class DisplayRegionContext(DirectObject):
     regionCount = 0
+
     def __init__(self, cam):
         self.cam = cam
         self.camNode = self.cam.node()
@@ -1093,10 +1093,7 @@ class DisplayRegionContext(DirectObject):
         # one display region per camera, since we are defining a
         # display region on a per-camera basis.  See note in
         # DisplayRegionList.__init__()
-        try:
-            self.dr = self.camNode.getDr(0)
-        except:
-            self.dr = self.camNode.getDisplayRegion(0)
+        self.dr = self.camNode.getDisplayRegion(0)
         left = self.dr.getLeft()
         right = self.dr.getRight()
         bottom = self.dr.getBottom()

direct/src/directtools/DirectUtil.py

@@ -2,6 +2,7 @@
 from .DirectGlobals import *
 from panda3d.core import VBase4
 from direct.task.Task import Task
+from direct.task.TaskManagerGlobal import taskMgr
 
 # Routines to adjust values
 def ROUND_TO(value, divisor):
@@ -84,4 +85,3 @@ def getFileData(filename, separator = ','):
             data = [s.strip() for s in l.split(separator)]
             fileData.append(data)
     return fileData
-

direct/src/directutil/DistributedLargeBlobSender.py

@@ -2,8 +2,10 @@
 
 from direct.distributed import DistributedObject
 from direct.directnotify import DirectNotifyGlobal
+from direct.showbase.MessengerGlobal import messenger
 from . import LargeBlobSenderConsts
 
+
 class DistributedLargeBlobSender(DistributedObject.DistributedObject):
     """DistributedLargeBlobSender: for sending large chunks of data through
     the DC system"""

direct/src/directutil/DistributedLargeBlobSenderAI.py

@@ -50,7 +50,7 @@ class DistributedLargeBlobSenderAI(DistributedObjectAI.DistributedObjectAI):
                                       'setFilename', [filename])
         else:
             chunkSize = LargeBlobSenderConsts.ChunkSize
-            while len(s):
+            while len(s) > 0:
                 self.sendUpdateToAvatarId(self.targetAvId,
                                           'setChunk', [s[:chunkSize]])
                 s = s[chunkSize:]

direct/src/directutil/Mopath.py

@@ -1,4 +1,5 @@
 from direct.showbase.DirectObject import DirectObject
+from direct.showbase.MessengerGlobal import messenger
 from direct.directtools.DirectGeometry import *
 
 from panda3d.core import NodePath, LineSegs
@@ -8,7 +9,7 @@ class Mopath(DirectObject):
     nameIndex = 1
 
     def __init__(self, name = None, fluid = 1, objectToLoad = None, upVectorNodePath = None, reverseUpVector = False):
-        if (name == None):
+        if name is None:
             name = 'mopath%d' % self.nameIndex
             self.nameIndex = self.nameIndex + 1
         self.name = name
@@ -35,24 +36,23 @@ class Mopath(DirectObject):
         return self.maxT * self.timeScale
 
     def loadFile(self, filename, fReset = 1):
-        nodePath = loader.loadModel(filename)
+        nodePath = base.loader.loadModel(filename)
         if nodePath:
             self.loadNodePath(nodePath)
             nodePath.removeNode()
         else:
             print('Mopath: no data in file: %s' % filename)
 
-
     def loadNodePath(self, nodePath, fReset = 1):
         if fReset:
             self.reset()
 
         self.__extractCurves(nodePath)
-        if (self.tNurbsCurve != []):
+        if self.tNurbsCurve != []:
             self.maxT = self.tNurbsCurve[-1].getMaxT()
-        elif (self.xyzNurbsCurve != None):
+        elif self.xyzNurbsCurve is not None:
             self.maxT = self.xyzNurbsCurve.getMaxT()
-        elif (self.hprNurbsCurve != None):
+        elif self.hprNurbsCurve is not None:
             self.maxT = self.hprNurbsCurve.getMaxT()
         else:
             print('Mopath: no valid curves in nodePath: %s' % nodePath)
@@ -74,11 +74,11 @@ class Mopath(DirectObject):
             elif node.getCurveType() == PCTHPR:
                 self.hprNurbsCurve = node
             elif node.getCurveType() == PCTNONE:
-                if (self.xyzNurbsCurve == None):
+                if self.xyzNurbsCurve is None:
                     self.xyzNurbsCurve = node
                 else:
                     print('Mopath: got a PCT_NONE curve and an XYZ Curve in nodePath: %s' % nodePath)
-            elif (node.getCurveType() == PCTT):
+            elif node.getCurveType() == PCTT:
                 self.tNurbsCurve.append(node)
         else:
             # Iterate over children if any
@@ -97,29 +97,29 @@ class Mopath(DirectObject):
 
     def getFinalState(self):
         pos = Point3(0)
-        if (self.xyzNurbsCurve != None):
+        if self.xyzNurbsCurve is not None:
             self.xyzNurbsCurve.getPoint(self.maxT, pos)
         hpr = Point3(0)
-        if (self.hprNurbsCurve != None):
+        if self.hprNurbsCurve is not None:
             self.hprNurbsCurve.getPoint(self.maxT, hpr)
         return (pos, hpr)
 
     def goTo(self, node, time):
-        if (self.xyzNurbsCurve == None) and (self.hprNurbsCurve == None):
+        if self.xyzNurbsCurve is None and self.hprNurbsCurve is None:
             print('Mopath: Mopath has no curves')
             return
         time /= self.timeScale
         self.playbackTime = self.calcTime(CLAMP(time, 0.0, self.maxT))
-        if (self.xyzNurbsCurve != None):
+        if self.xyzNurbsCurve is not None:
             self.xyzNurbsCurve.getPoint(self.playbackTime, self.posPoint)
             if self.fluid:
                 node.setFluidPos(self.posPoint)
             else:
                 node.setPos(self.posPoint)
-        if (self.hprNurbsCurve != None):
+        if self.hprNurbsCurve is not None:
             self.hprNurbsCurve.getPoint(self.playbackTime, self.hprPoint)
             node.setHpr(self.hprPoint)
-        elif (self.fFaceForward and (self.xyzNurbsCurve != None)):
+        elif self.fFaceForward and self.xyzNurbsCurve is not None:
             if self.faceForwardDelta:
                 # Look at a point a bit ahead in parametric time.
                 t = min(self.playbackTime + self.faceForwardDelta, self.xyzNurbsCurve.getMaxT())
@@ -133,18 +133,18 @@ class Mopath(DirectObject):
 
             # use the self.upVectorNodePath position if it exists to
             # create an up vector for lookAt
-            if (self.upVectorNodePath is None):
+            if self.upVectorNodePath is None:
                 node.lookAt(lookPoint)
             else:
-                if (self.reverseUpVector == False):
-                     node.lookAt(lookPoint,
-                                 self.upVectorNodePath.getPos() - self.posPoint)
+                if not self.reverseUpVector:
+                    node.lookAt(lookPoint,
+                                self.upVectorNodePath.getPos() - self.posPoint)
                 else:
-                     node.lookAt(lookPoint,
-                                 self.posPoint - self.upVectorNodePath.getPos())
+                    node.lookAt(lookPoint,
+                                self.posPoint - self.upVectorNodePath.getPos())
 
     def play(self, node, time = 0.0, loop = 0):
-        if (self.xyzNurbsCurve == None) and (self.hprNurbsCurve == None):
+        if self.xyzNurbsCurve is None and self.hprNurbsCurve is None:
             print('Mopath: Mopath has no curves')
             return
         self.node = node
@@ -161,11 +161,11 @@ class Mopath(DirectObject):
         time = globalClock.getFrameTime()
         dTime = time - task.lastTime
         task.lastTime = time
-        if (self.loop):
+        if self.loop:
             cTime = (task.currentTime + dTime) % self.getMaxT()
         else:
             cTime = task.currentTime + dTime
-        if ((self.loop == 0) and (cTime > self.getMaxT())):
+        if self.loop == 0 and cTime > self.getMaxT():
             self.stop()
             messenger.send(self.name + '-done')
             self.node = None
@@ -187,4 +187,3 @@ class Mopath(DirectObject):
             ls.drawTo(p)
 
         return NodePath(ls.create())
-

direct/src/dist/FreezeTool.py

@@ -165,23 +165,23 @@ class CompilationEnvironment:
         if self.platform.startswith('win'):
             self.Python = sysconf.PREFIX
 
-            if ('VCINSTALLDIR' in os.environ):
+            if 'VCINSTALLDIR' in os.environ:
                 self.MSVC = os.environ['VCINSTALLDIR']
-            elif (Filename('/c/Program Files/Microsoft Visual Studio 9.0/VC').exists()):
+            elif Filename('/c/Program Files/Microsoft Visual Studio 9.0/VC').exists():
                 self.MSVC = Filename('/c/Program Files/Microsoft Visual Studio 9.0/VC').toOsSpecific()
-            elif (Filename('/c/Program Files (x86)/Microsoft Visual Studio 9.0/VC').exists()):
+            elif Filename('/c/Program Files (x86)/Microsoft Visual Studio 9.0/VC').exists():
                 self.MSVC = Filename('/c/Program Files (x86)/Microsoft Visual Studio 9.0/VC').toOsSpecific()
-            elif (Filename('/c/Program Files/Microsoft Visual Studio .NET 2003/Vc7').exists()):
+            elif Filename('/c/Program Files/Microsoft Visual Studio .NET 2003/Vc7').exists():
                 self.MSVC = Filename('/c/Program Files/Microsoft Visual Studio .NET 2003/Vc7').toOsSpecific()
             else:
                 print('Could not locate Microsoft Visual C++ Compiler! Try running from the Visual Studio Command Prompt.')
                 sys.exit(1)
 
-            if ('WindowsSdkDir' in os.environ):
+            if 'WindowsSdkDir' in os.environ:
                 self.PSDK = os.environ['WindowsSdkDir']
-            elif (platform.architecture()[0] == '32bit' and Filename('/c/Program Files/Microsoft Platform SDK for Windows Server 2003 R2').exists()):
+            elif platform.architecture()[0] == '32bit' and Filename('/c/Program Files/Microsoft Platform SDK for Windows Server 2003 R2').exists():
                 self.PSDK = Filename('/c/Program Files/Microsoft Platform SDK for Windows Server 2003 R2').toOsSpecific()
-            elif (os.path.exists(os.path.join(self.MSVC, 'PlatformSDK'))):
+            elif os.path.exists(os.path.join(self.MSVC, 'PlatformSDK')):
                 self.PSDK = os.path.join(self.MSVC, 'PlatformSDK')
             else:
                 print('Could not locate the Microsoft Windows Platform SDK! Try running from the Visual Studio Command Prompt.')
@@ -199,7 +199,7 @@ class CompilationEnvironment:
                 self.suffix64 = '\\amd64'
 
             # If it is run by makepanda, it handles the MSVC and PlatformSDK paths itself.
-            if ('MAKEPANDA' in os.environ):
+            if 'MAKEPANDA' in os.environ:
                 self.compileObjExe = 'cl /wd4996 /Fo%(basename)s.obj /nologo /c %(MD)s /Zi /O2 /Ob2 /EHsc /Zm300 /W3 /I"%(pythonIPath)s" %(filename)s'
                 self.compileObjDll = self.compileObjExe
                 self.linkExe = 'link /nologo /MAP:NUL /FIXED:NO /OPT:REF /STACK:4194304 /INCREMENTAL:NO /LIBPATH:"%(python)s\\libs"  /out:%(basename)s.exe %(basename)s.obj'
@@ -237,7 +237,7 @@ class CompilationEnvironment:
             self.linkExe = "%(CC)s -o %(basename)s %(basename)s.o -L/usr/local/lib -lpython%(pythonVersion)s"
             self.linkDll = "%(LDSHARED)s -o %(basename)s.so %(basename)s.o -L/usr/local/lib -lpython%(pythonVersion)s"
 
-            if (os.path.isdir("/usr/PCBSD/local/lib")):
+            if os.path.isdir("/usr/PCBSD/local/lib"):
                 self.linkExe += " -L/usr/PCBSD/local/lib"
                 self.linkDll += " -L/usr/PCBSD/local/lib"
 
@@ -1009,8 +1009,8 @@ class Freezer:
         if not newName:
             newName = moduleName
 
-        assert(moduleName.endswith('.*'))
-        assert(newName.endswith('.*'))
+        assert moduleName.endswith('.*')
+        assert newName.endswith('.*')
 
         mdefs = {}
 
@@ -1020,7 +1020,7 @@ class Freezer:
         parentNames = [(parentName, newParentName)]
 
         if parentName.endswith('.*'):
-            assert(newParentName.endswith('.*'))
+            assert newParentName.endswith('.*')
             # Another special case.  The parent name "*" means to
             # return all possible directories within a particular
             # directory.
@@ -1353,7 +1353,7 @@ class Freezer:
         for moduleName, module in list(self.mf.modules.items()):
             if module.__code__:
                 co = self.mf.replace_paths_in_code(module.__code__)
-                module.__code__ = co;
+                module.__code__ = co
 
     def __addPyc(self, multifile, filename, code, compressionLevel):
         if code:
@@ -2226,7 +2226,7 @@ class Freezer:
 
                 strings = macho_data[stroff:stroff+strsize]
 
-                for i in range(nsyms):
+                for j in range(nsyms):
                     strx, type, sect, desc, value = struct.unpack_from(nlist_struct, macho_data, symoff)
                     symoff += nlist_size
                     name = strings[strx : strings.find(b'\0', strx)]
@@ -2539,8 +2539,10 @@ class PandaModuleFinder(modulefinder.ModuleFinder):
                     if "*" in fromlist:
                         have_star = 1
                     fromlist = [f for f in fromlist if f != "*"]
-                if what == "absolute_import": level = 0
-                else: level = -1
+                if what == "absolute_import":
+                    level = 0
+                else:
+                    level = -1
                 self._safe_import_hook(name, m, fromlist, level=level)
                 if have_star:
                     # We've encountered an "import *". If it is a Python module,

direct/src/dist/commands.py

@@ -16,7 +16,6 @@ import stat
 import struct
 import imp
 import string
-import time
 import tempfile
 
 import setuptools
@@ -500,11 +499,7 @@ class build_apps(setuptools.Command):
             icon.makeICNS(os.path.join(resdir, 'iconfile.icns'))
 
         with open(os.path.join(contentsdir, 'Info.plist'), 'wb') as f:
-            if hasattr(plistlib, 'dump'):
-                plistlib.dump(plist, f)
-            else:
-                plistlib.writePlist(plist, f)
-
+            plistlib.dump(plist, f)
 
     def build_runtimes(self, platform, use_wheels):
         """ Builds the distributions for the given platform. """

direct/src/dist/icon.py

@@ -150,7 +150,7 @@ class Icon:
 
         # ICO files only support resolutions up to 256x256.
         count = 0
-        for size in self.images.keys():
+        for size in self.images:
             if size < 256:
                 count += 1
             if size <= 256:

direct/src/dist/installers.py

@@ -170,4 +170,3 @@ def create_nsis(command, basename, build_dir):
         )
     cmd.append(nsifile.to_os_specific())
     subprocess.check_call(cmd)
-

direct/src/dist/pefile.py

@@ -487,6 +487,8 @@ class ResourceTable(object):
             entry.data = data
             entry.code_page = code_page
 
+        return entry
+
 
 class PEFile(object):
 

direct/src/dist/pfreeze.py

@@ -105,7 +105,7 @@ def main(args=None):
         elif opt == '-h':
             usage(0)
         else:
-            print('illegal option: ' + flag)
+            print('illegal option: ' + opt)
             sys.exit(1)
 
     if not basename:

direct/src/distributed/AsyncRequest.py

@@ -1,6 +1,7 @@
 #from otp.ai.AIBaseGlobal import *
 from direct.directnotify import DirectNotifyGlobal
 from direct.showbase.DirectObject import DirectObject
+from direct.showbase.MessengerGlobal import messenger
 from .ConnectionRepository import *
 from panda3d.core import ConfigVariableDouble, ConfigVariableInt, ConfigVariableBool
 
@@ -254,7 +255,8 @@ class AsyncRequest(DirectObject):
                         print("\n\nself.avatarId =", self.avatarId)
                     print("\nself.neededObjects =", self.neededObjects)
                     print("\ntimed out after %s seconds.\n\n"%(task.delayTime,))
-                    import pdb; pdb.set_trace()
+                    import pdb
+                    pdb.set_trace()
             self.delete()
             return Task.done
 

direct/src/distributed/CRCache.py

@@ -1,8 +1,11 @@
 """CRCache module: contains the CRCache class"""
 
 from direct.directnotify import DirectNotifyGlobal
+from direct.showbase.MessengerGlobal import messenger
+from direct.showbase.PythonUtil import safeRepr, itype
 from . import DistributedObject
 
+
 class CRCache:
     notify = DirectNotifyGlobal.directNotify.newCategory("CRCache")
 
@@ -41,7 +44,7 @@ class CRCache:
         for distObj in delayDeleted:
             if distObj.getDelayDeleteCount() != 0:
                 delayDeleteLeaks.append(distObj)
-        if len(delayDeleteLeaks):
+        if len(delayDeleteLeaks) > 0:
             s = 'CRCache.flush:'
             for obj in delayDeleteLeaks:
                 s += ('\n  could not delete %s (%s), delayDeletes=%s' %
@@ -76,7 +79,7 @@ class CRCache:
                 # if the cache is full, pop the oldest item
                 oldestDistObj = self.fifo.pop(0)
                 # and remove it from the dictionary
-                del(self.dict[oldestDistObj.getDoId()])
+                del self.dict[oldestDistObj.getDoId()]
                 # and delete it
                 oldestDistObj.deleteOrDelay()
                 if oldestDistObj.getDelayDeleteCount() <= 0:
@@ -93,7 +96,7 @@ class CRCache:
             # Find the object
             distObj = self.dict[doId]
             # Remove it from the dictionary
-            del(self.dict[doId])
+            del self.dict[doId]
             # Remove it from the fifo
             self.fifo.remove(distObj)
             # return the distObj
@@ -111,7 +114,7 @@ class CRCache:
         # Look it up
         distObj = self.dict[doId]
         # Remove it from the dict and fifo
-        del(self.dict[doId])
+        del self.dict[doId]
         self.fifo.remove(distObj)
         # and delete it
         distObj.deleteOrDelay()

direct/src/distributed/CRDataCache.py

@@ -114,4 +114,3 @@ if __debug__:
     dc._stopMemLeakCheck()
     dc.destroy()
     del dc
-

direct/src/distributed/CartesianGridBase.py

@@ -29,8 +29,8 @@ class CartesianGridBase:
         # Compute which zone we are in
         zoneId = int(self.startingZone + ((row * self.gridSize) + col))
 
-        if (wantRowAndCol):
-            return (zoneId,col,row)
+        if wantRowAndCol:
+            return (zoneId, col, row)
         else:
             return zoneId
 
@@ -113,9 +113,9 @@ class CartesianGridBase:
             else:
                 # in a middle column, only look at top and bottom rows
                 possibleRows = []
-                if (topOffset == radius):
+                if topOffset == radius:
                     possibleRows.append(0)
-                if (bottomOffset == radius):
+                if bottomOffset == radius:
                     possibleRows.append(bottomOffset + topOffset)
             #print "on column %s and looking at rows %s"%(currCol,possibleRows)
             for currRow in possibleRows:

direct/src/distributed/ClientRepository.py

@@ -2,10 +2,11 @@
 
 from .ClientRepositoryBase import ClientRepositoryBase
 from direct.directnotify import DirectNotifyGlobal
+from direct.showbase.MessengerGlobal import messenger
 from .MsgTypesCMU import *
 from .PyDatagram import PyDatagram
 from .PyDatagramIterator import PyDatagramIterator
-from panda3d.core import UniqueIdAllocator
+from panda3d.core import UniqueIdAllocator, Notify
 
 
 class ClientRepository(ClientRepositoryBase):
@@ -68,7 +69,7 @@ class ClientRepository(ClientRepositoryBase):
         zone = di.getUint32()
         for obj in self.doId2do.values():
             if obj.zoneId == zone:
-                if (self.isLocalId(obj.doId)):
+                if self.isLocalId(obj.doId):
                     self.resendGenerate(obj)
 
     def resendGenerate(self, obj):
@@ -114,12 +115,12 @@ class ClientRepository(ClientRepositoryBase):
             # repeat-generate, synthesized for the benefit of someone
             # else who just entered the zone.  Accept the new updates,
             # but don't make a formal generate.
-            assert(self.notify.debug("performing generate-update for %s %s" % (dclass.getName(), doId)))
+            assert self.notify.debug("performing generate-update for %s %s" % (dclass.getName(), doId))
             dclass.receiveUpdateBroadcastRequired(distObj, di)
             dclass.receiveUpdateOther(distObj, di)
             return
 
-        assert(self.notify.debug("performing generate for %s %s" % (dclass.getName(), doId)))
+        assert self.notify.debug("performing generate for %s %s" % (dclass.getName(), doId))
         dclass.startGenerate()
         # Create a new distributed object, and put it in the dictionary
         distObj = self.generateWithRequiredOtherFields(dclass, doId, di, 0, zoneId)
@@ -200,7 +201,7 @@ class ClientRepository(ClientRepositoryBase):
         if not dclass:
             self.notify.error("Unknown distributed class: %s" % (distObj.__class__))
         classDef = dclass.getClassDef()
-        if classDef == None:
+        if classDef is None:
             self.notify.error("Could not create an undefined %s object." % (
                 dclass.getName()))
 
@@ -289,13 +290,13 @@ class ClientRepository(ClientRepositoryBase):
         """ Returns true if this doId is one that we're the owner of,
         false otherwise. """
 
-        return ((doId >= self.doIdBase) and (doId < self.doIdLast))
+        return doId >= self.doIdBase and doId < self.doIdLast
 
     def haveCreateAuthority(self):
         """ Returns true if this client has been assigned a range of
         doId's it may use to create objects, false otherwise. """
 
-        return (self.doIdLast > self.doIdBase)
+        return self.doIdLast > self.doIdBase
 
     def getAvatarIdFromSender(self):
         """ Returns the doIdBase of the client that originally sent
@@ -306,7 +307,7 @@ class ClientRepository(ClientRepositoryBase):
     def handleDatagram(self, di):
         if self.notify.getDebug():
             print("ClientRepository received datagram:")
-            di.getDatagram().dumpHex(ostream)
+            di.getDatagram().dumpHex(Notify.out())
 
         msgType = self.getMsgType()
         self.currentSenderId = None

direct/src/distributed/ClientRepositoryBase.py

@@ -1,16 +1,18 @@
 from panda3d.core import *
 from panda3d.direct import *
-from .MsgTypes import *
 from direct.task import Task
+from direct.task.TaskManagerGlobal import taskMgr
 from direct.directnotify import DirectNotifyGlobal
-from . import CRCache
 from direct.distributed.CRDataCache import CRDataCache
 from direct.distributed.ConnectionRepository import ConnectionRepository
-from direct.showbase import PythonUtil
+from direct.showbase.PythonUtil import safeRepr, itype, makeList
+from direct.showbase.MessengerGlobal import messenger
+from .MsgTypes import *
+from . import CRCache
 from . import ParentMgr
 from . import RelatedObjectMgr
-import time
 from .ClockDelta import *
+import time
 
 
 class ClientRepositoryBase(ConnectionRepository):
@@ -155,7 +157,7 @@ class ClientRepositoryBase(ConnectionRepository):
         # Look up the dclass
         assert parentId == self.GameGlobalsId or parentId in self.doId2do
         dclass = self.dclassesByNumber[classId]
-        assert(self.notify.debug("performing generate for %s %s" % (dclass.getName(), doId)))
+        assert self.notify.debug("performing generate for %s %s" % (dclass.getName(), doId))
         dclass.startGenerate()
         # Create a new distributed object, and put it in the dictionary
         distObj = self.generateWithRequiredOtherFields(dclass, doId, di, parentId, zoneId)
@@ -189,7 +191,7 @@ class ClientRepositoryBase(ConnectionRepository):
                 for dg, di in updates:
                     # non-DC updates that need to be played back in-order are
                     # stored as (msgType, (dg, di))
-                    if type(di) is tuple:
+                    if isinstance(di, tuple):
                         msgType = dg
                         dg, di = di
                         self.replayDeferredGenerate(msgType, (dg, di))
@@ -248,7 +250,7 @@ class ClientRepositoryBase(ConnectionRepository):
             # ...it is not in the dictionary or the cache.
             # Construct a new one
             classDef = dclass.getClassDef()
-            if classDef == None:
+            if classDef is None:
                 self.notify.error("Could not create an undefined %s object." % (dclass.getName()))
             distObj = classDef(self)
             distObj.dclass = dclass
@@ -296,7 +298,7 @@ class ClientRepositoryBase(ConnectionRepository):
             # ...it is not in the dictionary or the cache.
             # Construct a new one
             classDef = dclass.getClassDef()
-            if classDef == None:
+            if classDef is None:
                 self.notify.error("Could not create an undefined %s object." % (dclass.getName()))
             distObj = classDef(self)
             distObj.dclass = dclass
@@ -339,7 +341,7 @@ class ClientRepositoryBase(ConnectionRepository):
             # ...it is not in the dictionary or the cache.
             # Construct a new one
             classDef = dclass.getOwnerClassDef()
-            if classDef == None:
+            if classDef is None:
                 self.notify.error("Could not create an undefined %s object. Have you created an owner view?" % (dclass.getName()))
             distObj = classDef(self)
             distObj.dclass = dclass
@@ -452,7 +454,7 @@ class ClientRepositoryBase(ConnectionRepository):
             # a dict and adding the avatar handles to that dict when they are created
             # then change/remove the old method. I didn't do that because I couldn't think
             # of a use for it. -JML
-            try :
+            try:
                 handle = self.identifyAvatar(doId)
                 if handle:
                     dclass = self.dclassesByName[handle.dclassName]
@@ -477,7 +479,7 @@ class ClientRepositoryBase(ConnectionRepository):
     def handleGoGetLost(self, di):
         # The server told us it's about to drop the connection on us.
         # Get ready!
-        if (di.getRemainingSize() > 0):
+        if di.getRemainingSize() > 0:
             self.bootedIndex = di.getUint16()
             self.bootedText = di.getString()
 

direct/src/distributed/ClockDelta.py

@@ -78,7 +78,7 @@ class ClockDelta(DirectObject.DirectObject):
         # representing infinite uncertainty, if we have never received
         # a time measurement.
 
-        if self.uncertainty == None:
+        if self.uncertainty is None:
             return None
 
         now = self.globalClock.getRealTime()
@@ -190,7 +190,7 @@ class ClockDelta(DirectObject.DirectObject):
         the new measurement was used, false if it was discarded.
         """
         oldUncertainty = self.getUncertainty()
-        if oldUncertainty != None:
+        if oldUncertainty is not None:
             self.notify.info(
                 'previous delta at %.3f s, +/- %.3f s.' %
                 (self.delta, oldUncertainty))
@@ -241,7 +241,7 @@ class ClockDelta(DirectObject.DirectObject):
         minutes of the current local time given in now, or
         getRealTime() if now is not specified.
         """
-        if now == None:
+        if now is None:
             now = self.globalClock.getRealTime()
 
         # Are we in non-real-time mode (i.e. filming a movie)?  If you

direct/src/distributed/ConnectionRepository.py

@@ -1,10 +1,12 @@
 from panda3d.core import *
 from panda3d.direct import *
 from direct.task import Task
+from direct.task.TaskManagerGlobal import taskMgr
 from direct.directnotify.DirectNotifyGlobal import directNotify
 from direct.distributed.DoInterestManager import DoInterestManager
 from direct.distributed.DoCollectionManager import DoCollectionManager
 from direct.showbase import GarbageReport
+from direct.showbase.MessengerGlobal import messenger
 from .PyDatagramIterator import PyDatagramIterator
 
 import inspect
@@ -175,7 +177,7 @@ class ConnectionRepository(
         def applyFieldValues(distObj, dclass, values):
             for i in range(dclass.getNumInheritedFields()):
                 field = dclass.getInheritedField(i)
-                if field.asMolecularField() == None:
+                if field.asMolecularField() is None:
                     value = values.get(field.getName(), None)
                     if value is None and field.isRequired():
                         # Gee, this could be better.  What would really be
@@ -214,7 +216,7 @@ class ConnectionRepository(
 
         # Construct a new one
         classDef = dclass.getClassDef()
-        if classDef == None:
+        if classDef is None:
             self.notify.error("Could not create an undefined %s object."%(
                 dclass.getName()))
         distObj = classDef(self)
@@ -252,7 +254,7 @@ class ConnectionRepository(
             dcFileNames = [dcFileNames]
 
         dcImports = {}
-        if dcFileNames == None:
+        if dcFileNames is None:
             readResult = dcFile.readAll()
             if not readResult:
                 self.notify.error("Could not read dc file.")
@@ -322,7 +324,7 @@ class ConnectionRepository(
                 classDef = dcImports.get(className)
 
             # Also try it without the dcSuffix.
-            if classDef == None:
+            if classDef is None:
                 className = dclass.getName()
                 classDef = dcImports.get(className)
             if classDef is None:
@@ -379,7 +381,7 @@ class ConnectionRepository(
             # in the DC file.
             for i in range(dcFile.getNumClasses()):
                 dclass = dcFile.getClass(i)
-                if ((dclass.getName()+ownerDcSuffix) in ownerImportSymbols):
+                if (dclass.getName()+ownerDcSuffix) in ownerImportSymbols:
                     number = dclass.getNumber()
                     className = dclass.getName() + ownerDcSuffix
 
@@ -583,7 +585,7 @@ class ConnectionRepository(
         # available.  Returns the HTTPClient (also self.http), or None
         # if not set.
 
-        if self.http == None:
+        if self.http is None:
             try:
                 self.http = HTTPClient()
             except:
@@ -662,7 +664,7 @@ class ConnectionRepository(
             self.setSimulatedDisconnect(0)
 
     def uniqueName(self, idString):
-        return ("%s-%s" % (idString, self.uniqueId))
+        return "%s-%s" % (idString, self.uniqueId)
 
 class GCTrigger:
     # used to trigger garbage collection

direct/src/distributed/DistributedCamera.py

@@ -12,7 +12,7 @@ class Fixture(NodePath, FSM):
         self.lens = PerspectiveLens()
         self.lens.setFov(base.camLens.getFov())
 
-        model = loader.loadModel('models/misc/camera', okMissing = True)
+        model = base.loader.loadModel('models/misc/camera', okMissing = True)
         model.reparentTo(self)
 
         self.reparentTo(parent)
@@ -129,8 +129,8 @@ class Fixture(NodePath, FSM):
 
     def enterUsing(self, args = []):
         localAvatar.b_setGameState('Camera')
-        camera.setPosHpr(0,0,0,0,0,0)
-        camera.reparentTo(self)
+        base.camera.setPosHpr(0,0,0,0,0,0)
+        base.camera.reparentTo(self)
         self.hide()
 
         base.cam.node().setLens(self.lens)

direct/src/distributed/DistributedCartesianGrid.py

@@ -81,7 +81,7 @@ class DistributedCartesianGrid(DistributedNode, CartesianGridBase):
 
     def handleChildArrive(self, child, zoneId):
         DistributedNode.handleChildArrive(self, child, zoneId)
-        if (zoneId >= self.startingZone):
+        if zoneId >= self.startingZone:
             if not child.gridParent:
                 child.gridParent = GridParent(child)
             child.gridParent.setGridParent(self, zoneId)
@@ -91,7 +91,7 @@ class DistributedCartesianGrid(DistributedNode, CartesianGridBase):
 
     def handleChildArriveZone(self, child, zoneId):
         DistributedNode.handleChildArrive(self, child, zoneId)
-        if (zoneId >= self.startingZone):
+        if zoneId >= self.startingZone:
             if not child.gridParent:
                 child.gridParent = GridParent(child)
             child.gridParent.setGridParent(self, zoneId)
@@ -150,21 +150,21 @@ class DistributedCartesianGrid(DistributedNode, CartesianGridBase):
 
         # sometimes we also need to remove vis avatar from
         # my parent if it is also a grid
-        if (clearAll):
+        if clearAll:
             if event is not None:
                 parentEvent = eventGroup.newEvent('%s.parent.removeInterest' % self.doId)
             else:
                 parentEvent = None
 
             ##HACK BANDAID FOR PVP INSTANCES
-            if(hasattr(self.cr.doId2do[self.parentId],"worldGrid")):
+            if hasattr(self.cr.doId2do[self.parentId], "worldGrid"):
                 self.cr.doId2do[self.parentId].worldGrid.stopProcessVisibility(event=parentEvent)
 
     def processVisibility(self, task):
-        if self.visAvatar == None:
+        if self.visAvatar is None:
             # no avatar to process visibility for
             return Task.done
-        if(self.visAvatar.isDisabled()):
+        if self.visAvatar.isDisabled():
             self.visAvatar = None
             return Task.done
         if self.visAvatar.gameFSM.state == 'Cutscene':
@@ -192,7 +192,7 @@ class DistributedCartesianGrid(DistributedNode, CartesianGridBase):
         zoneId = int(self.startingZone + ((row * self.gridSize) + col))
         assert self.notify.debug("processVisibility: %s: row: %s col: %s zoneId: %s" %
                                  (self.doId, row, col, zoneId))
-        if (zoneId == self.visZone):
+        if zoneId == self.visZone:
             assert self.notify.debug(
                 "processVisibility: %s: interest did not change" % (self.doId))
             if self.visDirty:
@@ -314,7 +314,7 @@ class DistributedCartesianGrid(DistributedNode, CartesianGridBase):
 
             # Load up grid parts to initialize grid object
             # Polygon used to mark grid plane
-            # self.gridBack = loader.loadModel('models/misc/gridBack')
+            # self.gridBack = base.loader.loadModel('models/misc/gridBack')
             # self.gridBack.reparentTo(self)
             # self.gridBack.setColor(0.2, 0.2, 0.2, 0.5)
 
@@ -397,7 +397,7 @@ class DistributedCartesianGrid(DistributedNode, CartesianGridBase):
             dx = self.cellWidth * self.gridSize * .5
             for i in range(self.gridSize):
                 for j in range(self.gridSize):
-                    marker = loader.loadModel("models/misc/smiley")
+                    marker = base.loader.loadModel("models/misc/smiley")
                     marker.reparentTo(self.markerParent)
                     marker.setPos(i * self.cellWidth - dx,
                                   j * self.cellWidth - dx,

direct/src/distributed/DistributedCartesianGridAI.py

@@ -3,6 +3,7 @@ from panda3d.core import *
 from panda3d.direct import *
 from direct.directnotify.DirectNotifyGlobal import directNotify
 from direct.task import Task
+from direct.task.TaskManagerGlobal import taskMgr
 from .DistributedNodeAI import DistributedNodeAI
 from .CartesianGridBase import CartesianGridBase
 
@@ -56,7 +57,7 @@ class DistributedCartesianGridAI(DistributedNodeAI, CartesianGridBase):
         # Put the avatar on the grid
         self.handleAvatarZoneChange(av, useZoneId)
 
-        if (not self.updateTaskStarted) and startAutoUpdate:
+        if startAutoUpdate and not self.updateTaskStarted:
             self.startUpdateGridTask()
 
     def removeObjectFromGrid(self, av):
@@ -100,24 +101,24 @@ class DistributedCartesianGridAI(DistributedNodeAI, CartesianGridBase):
         for avId in list(self.gridObjects.keys()):
             av = self.gridObjects[avId]
             # handle a missing object after it is already gone?
-            if (av.isEmpty()):
+            if av.isEmpty():
                 task.setDelay(1.0)
                 del self.gridObjects[avId]
                 continue
             pos = av.getPos()
-            if ((pos[0] < 0 or pos[1] < 0) or
-                (pos[0] > self.cellWidth or pos[1] > self.cellWidth)):
+            if (pos[0] < 0 or pos[1] < 0) or \
+               (pos[0] > self.cellWidth or pos[1] > self.cellWidth):
                 # we are out of the bounds of this current cell
                 self.handleAvatarZoneChange(av)
         # Do this every second, not every frame
-        if (task):
+        if task:
             task.setDelay(1.0)
         return Task.again
 
     def handleAvatarZoneChange(self, av, useZoneId=-1):
         # Calculate zone id
         # Get position of av relative to this grid
-        if (useZoneId == -1):
+        if useZoneId == -1:
             pos = av.getPos(self)
             zoneId = self.getZoneFromXYZ(pos)
         else:
@@ -137,9 +138,8 @@ class DistributedCartesianGridAI(DistributedNodeAI, CartesianGridBase):
 
     def handleSetLocation(self, av, parentId, zoneId):
         pass
-        #if (av.parentId != parentId):
+        #if av.parentId != parentId:
             # parent changed, need to look up instance tree
             # to see if avatar's named area location information
             # changed
             #av.requestRegionUpdateTask(regionegionUid)
-

direct/src/distributed/DistributedNode.py

@@ -9,9 +9,7 @@ class DistributedNode(DistributedObject.DistributedObject, NodePath):
     """Distributed Node class:"""
 
     def __init__(self, cr):
-        try:
-            self.DistributedNode_initialized
-        except:
+        if not hasattr(self, 'DistributedNode_initialized'):
             self.DistributedNode_initialized = 1
             self.gotStringParentToken = 0
             DistributedObject.DistributedObject.__init__(self, cr)
@@ -28,9 +26,7 @@ class DistributedNode(DistributedObject.DistributedObject, NodePath):
             DistributedObject.DistributedObject.disable(self)
 
     def delete(self):
-        try:
-            self.DistributedNode_deleted
-        except:
+        if not hasattr(self, 'DistributedNode_deleted'):
             self.DistributedNode_deleted = 1
             if not self.isEmpty():
                 self.removeNode()
@@ -78,7 +74,7 @@ class DistributedNode(DistributedObject.DistributedObject, NodePath):
     ### setParent ###
 
     def b_setParent(self, parentToken):
-        if type(parentToken) == str:
+        if isinstance(parentToken, str):
             self.setParentStr(parentToken)
         else:
             self.setParent(parentToken)
@@ -86,7 +82,7 @@ class DistributedNode(DistributedObject.DistributedObject, NodePath):
         self.d_setParent(parentToken)
 
     def d_setParent(self, parentToken):
-        if type(parentToken) == str:
+        if isinstance(parentToken, str):
             self.sendUpdate("setParentStr", [parentToken])
         else:
             self.sendUpdate("setParent", [parentToken])

direct/src/distributed/DistributedNodeAI.py

@@ -6,9 +6,7 @@ from . import GridParent
 class DistributedNodeAI(DistributedObjectAI.DistributedObjectAI, NodePath):
     def __init__(self, air, name=None):
         # Be careful not to create multiple NodePath objects
-        try:
-            self.DistributedNodeAI_initialized
-        except:
+        if not hasattr(self, 'DistributedNodeAI_initialized'):
             self.DistributedNodeAI_initialized = 1
             DistributedObjectAI.DistributedObjectAI.__init__(self, air)
             if name is None:
@@ -47,14 +45,14 @@ class DistributedNodeAI(DistributedObjectAI.DistributedObjectAI, NodePath):
     ### setParent ###
 
     def b_setParent(self, parentToken):
-        if type(parentToken) == str:
+        if isinstance(parentToken, str):
             self.setParentStr(parentToken)
         else:
             self.setParent(parentToken)
         self.d_setParent(parentToken)
 
     def d_setParent(self, parentToken):
-        if type(parentToken) == type(''):
+        if isinstance(parentToken, str):
             self.sendUpdate("setParentStr", [parentToken])
         else:
             self.sendUpdate("setParent", [parentToken])

direct/src/distributed/DistributedNodeUD.py

@@ -3,23 +3,21 @@ from .DistributedObjectUD import DistributedObjectUD
 class DistributedNodeUD(DistributedObjectUD):
     def __init__(self, air, name=None):
         # Be careful not to create multiple NodePath objects
-        try:
-            self.DistributedNodeUD_initialized
-        except:
+        if not hasattr(self, 'DistributedNodeUD_initialized'):
             self.DistributedNodeUD_initialized = 1
             DistributedObjectUD.__init__(self, air)
             if name is None:
                 name = self.__class__.__name__
 
     def b_setParent(self, parentToken):
-        if type(parentToken) == str:
+        if isinstance(parentToken, str):
             self.setParentStr(parentToken)
         else:
             self.setParent(parentToken)
         self.d_setParent(parentToken)
 
     def d_setParent(self, parentToken):
-        if type(parentToken) == type(''):
+        if isinstance(parentToken, str):
             self.sendUpdate("setParentStr", [parentToken])
         else:
             self.sendUpdate("setParent", [parentToken])

direct/src/distributed/DistributedObject.py

@@ -2,6 +2,7 @@
 
 from panda3d.core import *
 from panda3d.direct import *
+from direct.showbase.MessengerGlobal import messenger
 from direct.directnotify.DirectNotifyGlobal import directNotify
 from direct.distributed.DistributedObjectBase import DistributedObjectBase
 #from PyDatagram import PyDatagram
@@ -43,9 +44,7 @@ class DistributedObject(DistributedObjectBase):
 
     def __init__(self, cr):
         assert self.notify.debugStateCall(self)
-        try:
-            self.DistributedObject_initialized
-        except:
+        if not hasattr(self, 'DistributedObject_initialized'):
             self.DistributedObject_initialized = 1
             DistributedObjectBase.__init__(self, cr)
 
@@ -96,7 +95,7 @@ class DistributedObject(DistributedObjectBase):
                     flags.append("cacheable")
 
                 flagStr = ""
-                if len(flags):
+                if len(flags) > 0:
                     flagStr = " (%s)" % (" ".join(flags))
 
                 print("%sfrom DistributedObject doId:%s, parent:%s, zone:%s%s" % (
@@ -156,25 +155,25 @@ class DistributedObject(DistributedObjectBase):
             self._cachedData = self.cr.doDataCache.popCachedData(self.doId)
 
     def setCachedData(self, name, data):
-        assert type(name) == type('')
+        assert isinstance(name, str)
         # ownership of the data passes to the repository data cache
         self.cr.doDataCache.setCachedData(self.doId, name, data)
 
     def hasCachedData(self, name):
-        assert type(name) == type('')
+        assert isinstance(name, str)
         if not hasattr(self, '_cachedData'):
             return False
         return name in self._cachedData
 
     def getCachedData(self, name):
-        assert type(name) == type('')
+        assert isinstance(name, str)
         # ownership of the data passes to the caller of this method
         data = self._cachedData[name]
         del self._cachedData[name]
         return data
 
     def flushCachedData(self, name):
-        assert type(name) == type('')
+        assert isinstance(name, str)
         # call this to throw out cached data from a previous instantiation
         self._cachedData[name].flush()
 
@@ -278,14 +277,13 @@ class DistributedObject(DistributedObjectBase):
         Inheritors should redefine this to take appropriate action on disable
         """
         assert self.notify.debug('disable(): %s' % (self.doId))
-        pass
 
     def isDisabled(self):
         """
         Returns true if the object has been disabled and/or deleted,
         or if it is brand new and hasn't yet been generated.
         """
-        return (self.activeState < ESGenerating)
+        return self.activeState < ESGenerating
 
     def isGenerated(self):
         """
@@ -293,17 +291,14 @@ class DistributedObject(DistributedObjectBase):
         and not yet disabled.
         """
         assert self.notify.debugStateCall(self)
-        return (self.activeState == ESGenerated)
+        return self.activeState == ESGenerated
 
     def delete(self):
         """
         Inheritors should redefine this to take appropriate action on delete
         """
         assert self.notify.debug('delete(): %s' % (self.doId))
-        try:
-            self.DistributedObject_deleted
-        except:
-            self.DistributedObject_deleted = 1
+        self.DistributedObject_deleted = 1
 
     def generate(self):
         """
@@ -374,10 +369,10 @@ class DistributedObject(DistributedObjectBase):
         self.cr.sendDeleteMsg(self.doId)
 
     def taskName(self, taskString):
-        return ("%s-%s" % (taskString, self.doId))
+        return "%s-%s" % (taskString, self.doId)
 
     def uniqueName(self, idString):
-        return ("%s-%s" % (idString, self.doId))
+        return "%s-%s" % (idString, self.doId)
 
     def getCallbackContext(self, callback, extraArgs = []):
         # Some objects implement a back-and-forth handshake operation
@@ -429,7 +424,7 @@ class DistributedObject(DistributedObjectBase):
         if tuple:
             callback, extraArgs = tuple
             completeArgs = args + extraArgs
-            if callback != None:
+            if callback is not None:
                 callback(*completeArgs)
             del self.__callbacks[context]
         else:
@@ -470,9 +465,9 @@ class DistributedObject(DistributedObjectBase):
         # doneBarrier() twice, or we have not received a barrier
         # context from the AI.  I think in either case it's ok to
         # silently ignore the error.
-        if self.__barrierContext != None:
+        if self.__barrierContext is not None:
             context, aiName = self.__barrierContext
-            if name == None or name == aiName:
+            if name is None or name == aiName:
                 assert self.notify.debug('doneBarrier(%s, %s)' % (context, aiName))
                 self.sendUpdate("setBarrierReady", [context])
                 self.__barrierContext = None

direct/src/distributed/DistributedObjectAI.py

@@ -2,6 +2,7 @@
 
 from direct.directnotify.DirectNotifyGlobal import directNotify
 from direct.distributed.DistributedObjectBase import DistributedObjectBase
+from direct.showbase.MessengerGlobal import messenger
 from direct.showbase import PythonUtil
 from panda3d.core import *
 from panda3d.direct import *
@@ -13,9 +14,7 @@ class DistributedObjectAI(DistributedObjectBase):
     QuietZone = 1
 
     def __init__(self, air):
-        try:
-            self.DistributedObjectAI_initialized
-        except:
+        if not hasattr(self, 'DistributedObjectAI_initialized'):
             self.DistributedObjectAI_initialized = 1
             DistributedObjectBase.__init__(self, air)
 
@@ -66,11 +65,11 @@ class DistributedObjectAI(DistributedObjectBase):
                 flags = []
                 if self.__generated:
                     flags.append("generated")
-                if self.air == None:
+                if self.air is None:
                     flags.append("deleted")
 
                 flagStr = ""
-                if len(flags):
+                if len(flags) > 0:
                     flagStr = " (%s)" % (" ".join(flags))
 
                 print("%sfrom DistributedObject doId:%s, parent:%s, zone:%s%s" % (
@@ -119,24 +118,23 @@ class DistributedObjectAI(DistributedObjectBase):
                 # self.doId may not exist.  The __dict__ syntax works around that.
                 assert self.notify.debug('delete(): %s' % (self.__dict__.get("doId")))
 
-                if not self._DOAI_requestedDelete:
-                    # this logs every delete that was not requested by us.
-                    # TODO: this currently prints warnings for deletes of objects
-                    # that we did not create. We need to add a 'locally created'
-                    # flag to every object to filter these out.
-                    """
-                    DistributedObjectAI.notify.warning(
-                        'delete() called but requestDelete never called for %s: %s'
-                        % (self.__dict__.get('doId'), self.__class__.__name__))
-                        """
-                    """
-                    # print a stack trace so we can detect whether this is the
-                    # result of a network msg.
-                    # this is slow.
-                    from direct.showbase.PythonUtil import StackTrace
-                    DistributedObjectAI.notify.warning(
-                        'stack trace: %s' % StackTrace())
-                        """
+                #if not self._DOAI_requestedDelete:
+                #    # this logs every delete that was not requested by us.
+                #    # TODO: this currently prints warnings for deletes of objects
+                #    # that we did not create. We need to add a 'locally created'
+                #    # flag to every object to filter these out.
+                #
+                #    DistributedObjectAI.notify.warning(
+                #        'delete() called but requestDelete never called for %s: %s'
+                #        % (self.__dict__.get('doId'), self.__class__.__name__))
+                #
+                #    # print a stack trace so we can detect whether this is the
+                #    # result of a network msg.
+                #    # this is slow.
+                #    from direct.showbase.PythonUtil import StackTrace
+                #    DistributedObjectAI.notify.warning(
+                #        'stack trace: %s' % StackTrace())
+
                 self._DOAI_requestedDelete = False
 
                 self.releaseZoneData()
@@ -167,7 +165,7 @@ class DistributedObjectAI(DistributedObjectBase):
         Returns true if the object has been deleted,
         or if it is brand new and hasnt yet been generated.
         """
-        return self.air == None
+        return self.air is None
 
     def isGenerated(self):
         """
@@ -195,7 +193,6 @@ class DistributedObjectAI(DistributedObjectBase):
         Called after the object has been generated and all
         of its required fields filled in. Overwrite when needed.
         """
-        pass
 
     def b_setLocation(self, parentId, zoneId):
         self.d_setLocation(parentId, zoneId)
@@ -206,14 +203,13 @@ class DistributedObjectAI(DistributedObjectBase):
 
     def setLocation(self, parentId, zoneId):
         # Prevent Duplicate SetLocations for being Called
-        if (self.parentId == parentId) and (self.zoneId == zoneId):
+        if self.parentId == parentId and self.zoneId == zoneId:
             return
 
         oldParentId = self.parentId
         oldZoneId = self.zoneId
         self.air.storeObjectLocation(self, parentId, zoneId)
-        if ((oldParentId != parentId) or
-            (oldZoneId != zoneId)):
+        if oldParentId != parentId or oldZoneId != zoneId:
             self.releaseZoneData()
             messenger.send(self.getZoneChangeEvent(), [zoneId, oldZoneId])
             # if we are not going into the quiet zone, send a 'logical' zone
@@ -476,10 +472,10 @@ class DistributedObjectAI(DistributedObjectBase):
         self._DOAI_requestedDelete = True
 
     def taskName(self, taskString):
-        return ("%s-%s" % (taskString, self.doId))
+        return "%s-%s" % (taskString, self.doId)
 
     def uniqueName(self, idString):
-        return ("%s-%s" % (idString, self.doId))
+        return "%s-%s" % (idString, self.doId)
 
     def validate(self, avId, bool, msg):
         if not bool:
@@ -542,7 +538,7 @@ class DistributedObjectAI(DistributedObjectBase):
         avId = self.air.getAvatarIdFromSender()
         assert self.notify.debug('setBarrierReady(%s, %s)' % (context, avId))
         barrier = self.__barriers.get(context)
-        if barrier == None:
+        if barrier is None:
             # This may be None if a client was slow and missed an
             # earlier timeout.  Too bad.
             return
@@ -569,7 +565,6 @@ class DistributedObjectAI(DistributedObjectBase):
 
     def _retrieveCachedData(self):
         """ This is a no-op on the AI. """
-        pass
 
     def setAI(self, aiChannel):
         self.air.setAI(self.doId, aiChannel)

direct/src/distributed/DistributedObjectBase.py

@@ -49,7 +49,6 @@ class DistributedObjectBase(DirectObject):
         """
         assert self.notify.debugCall()
         # Inheritors should override
-        pass
 
     def handleChildArriveZone(self, childObj, zoneId):
         """
@@ -60,7 +59,6 @@ class DistributedObjectBase(DirectObject):
         """
         assert self.notify.debugCall()
         # Inheritors should override
-        pass
 
     def handleChildLeave(self, childObj, zoneId):
         """
@@ -69,7 +67,6 @@ class DistributedObjectBase(DirectObject):
         """
         assert self.notify.debugCall()
         # Inheritors should override
-        pass
 
     def handleChildLeaveZone(self, childObj, zoneId):
         """
@@ -79,12 +76,10 @@ class DistributedObjectBase(DirectObject):
         """
         assert self.notify.debugCall()
         # Inheritors should override
-        pass
 
     def handleQueryObjectChildrenLocalDone(self, context):
         assert self.notify.debugCall()
         # Inheritors should override
-        pass
 
     def getParentObj(self):
         if self.parentId is None:
@@ -92,12 +87,10 @@ class DistributedObjectBase(DirectObject):
         return self.cr.doId2do.get(self.parentId)
 
     def hasParentingRules(self):
-        return self.dclass.getFieldByName('setParentingRules') != None
+        return self.dclass.getFieldByName('setParentingRules') is not None
 
     def delete(self):
         """
         Override this to handle cleanup right before this object
         gets deleted.
         """
-
-        pass

direct/src/distributed/DistributedObjectGlobal.py

@@ -21,4 +21,3 @@ class DistributedObjectGlobal(DistributedObject):
         DistributedObject.__init__(self, cr)
         self.parentId = 0
         self.zoneId = 0
-

direct/src/distributed/DistributedObjectGlobalAI.py

@@ -18,15 +18,14 @@ class DistributedObjectGlobalAI(DistributedObjectAI):
             if not self.doNotListenToChannel:
                 self.air.registerForChannel(self.doId)
         except AttributeError:
-                self.air.registerForChannel(self.doId)
+            self.air.registerForChannel(self.doId)
         return False
 
     def delete(self):
-       DistributedObjectAI.delete(self)
-       try:
+        DistributedObjectAI.delete(self)
+        try:
             if not self.doNotListenToChannel:
-               self.air.unregisterForChannel(self.doId)
-       except AttributeError:
-           self.air.unregisterForChannel(self.doId)
+                self.air.unregisterForChannel(self.doId)
+        except AttributeError:
+            self.air.unregisterForChannel(self.doId)
         ## self.air.removeDOFromTables(self)
-

direct/src/distributed/DistributedObjectGlobalUD.py

@@ -1,5 +1,4 @@
-
-
+from panda3d.core import ConfigVariableInt
 from .DistributedObjectUD import DistributedObjectUD
 from direct.directnotify.DirectNotifyGlobal import directNotify
 
@@ -25,7 +24,8 @@ class DistributedObjectGlobalUD(DistributedObjectUD):
         DistributedObjectUD.delete(self)
 
     def execCommand(self, command, mwMgrId, avId, zoneId):
-        text = str(self.__execMessage(command))[:config.GetInt("ai-debug-length",300)]
+        length = ConfigVariableInt("ai-debug-length", 300)
+        text = str(self.__execMessage(command))[:length.value]
         self.notify.info(text)
 
     def __execMessage(self, message):

direct/src/distributed/DistributedObjectOV.py

@@ -1,6 +1,7 @@
 
 from direct.directnotify.DirectNotifyGlobal import directNotify
 from direct.distributed.DistributedObjectBase import DistributedObjectBase
+from direct.showbase.MessengerGlobal import messenger
 
 #from PyDatagram import PyDatagram
 #from PyDatagramIterator import PyDatagramIterator
@@ -23,9 +24,7 @@ class DistributedObjectOV(DistributedObjectBase):
 
     def __init__(self, cr):
         assert self.notify.debugStateCall(self)
-        try:
-            self.DistributedObjectOV_initialized
-        except:
+        if not hasattr(self, 'DistributedObjectOV_initialized'):
             self.DistributedObjectOV_initialized = 1
             DistributedObjectBase.__init__(self, cr)
 
@@ -51,7 +50,7 @@ class DistributedObjectOV(DistributedObjectBase):
                     flags.append("disabled")
 
                 flagStr = ""
-                if len(flags):
+                if len(flags) > 0:
                     flagStr = " (%s)" % (" ".join(flags))
 
                 print("%sfrom DistributedObjectOV doId:%s, parent:%s, zone:%s%s" % (
@@ -103,7 +102,7 @@ class DistributedObjectOV(DistributedObjectBase):
         Returns true if the object has been disabled and/or deleted,
         or if it is brand new and hasn't yet been generated.
         """
-        return (self.activeState < ESGenerating)
+        return self.activeState < ESGenerating
 
     def isGenerated(self):
         """
@@ -111,16 +110,14 @@ class DistributedObjectOV(DistributedObjectBase):
         and not yet disabled.
         """
         assert self.notify.debugStateCall(self)
-        return (self.activeState == ESGenerated)
+        return self.activeState == ESGenerated
 
     def delete(self):
         """
         Inheritors should redefine this to take appropriate action on delete
         """
         assert self.notify.debug('delete(): %s' % (self.doId))
-        try:
-            self.DistributedObjectOV_deleted
-        except:
+        if not hasattr(self, 'DistributedObjectOV_deleted'):
             self.DistributedObjectOV_deleted = 1
             self.cr = None
             self.dclass = None
@@ -186,7 +183,7 @@ class DistributedObjectOV(DistributedObjectBase):
             self.notify.warning("sendUpdate failed, because self.cr is not set")
 
     def taskName(self, taskString):
-        return ('%s-%s-OV' % (taskString, self.getDoId()))
+        return '%s-%s-OV' % (taskString, self.getDoId())
 
     def uniqueName(self, idString):
-        return ('%s-%s-OV' % (idString, self.getDoId()))
+        return '%s-%s-OV' % (idString, self.getDoId())

direct/src/distributed/DistributedObjectUD.py

@@ -2,6 +2,7 @@
 
 from direct.directnotify.DirectNotifyGlobal import directNotify
 from direct.distributed.DistributedObjectBase import DistributedObjectBase
+from direct.showbase.MessengerGlobal import messenger
 from direct.showbase import PythonUtil
 from panda3d.core import *
 from panda3d.direct import *
@@ -13,9 +14,7 @@ class DistributedObjectUD(DistributedObjectBase):
     QuietZone = 1
 
     def __init__(self, air):
-        try:
-            self.DistributedObjectUD_initialized
-        except:
+        if not hasattr(self, 'DistributedObjectUD_initialized'):
             self.DistributedObjectUD_initialized = 1
             DistributedObjectBase.__init__(self, air)
 
@@ -64,11 +63,11 @@ class DistributedObjectUD(DistributedObjectBase):
                 flags = []
                 if self.__generated:
                     flags.append("generated")
-                if self.air == None:
+                if self.air is None:
                     flags.append("deleted")
 
                 flagStr = ""
-                if len(flags):
+                if len(flags) > 0:
                     flagStr = " (%s)" % (" ".join(flags))
 
                 print("%sfrom DistributedObject doId:%s, parent:%s, zone:%s%s" % (
@@ -103,24 +102,23 @@ class DistributedObjectUD(DistributedObjectBase):
                 # self.doId may not exist.  The __dict__ syntax works around that.
                 assert self.notify.debug('delete(): %s' % (self.__dict__.get("doId")))
 
-                if not self._DOUD_requestedDelete:
-                    # this logs every delete that was not requested by us.
-                    # TODO: this currently prints warnings for deletes of objects
-                    # that we did not create. We need to add a 'locally created'
-                    # flag to every object to filter these out.
-                    """
-                    DistributedObjectUD.notify.warning(
-                        'delete() called but requestDelete never called for %s: %s'
-                        % (self.__dict__.get('doId'), self.__class__.__name__))
-                        """
-                    """
-                    # print a stack trace so we can detect whether this is the
-                    # result of a network msg.
-                    # this is slow.
-                    from direct.showbase.PythonUtil import StackTrace
-                    DistributedObjectUD.notify.warning(
-                        'stack trace: %s' % StackTrace())
-                        """
+                #if not self._DOUD_requestedDelete:
+                #    # this logs every delete that was not requested by us.
+                #    # TODO: this currently prints warnings for deletes of objects
+                #    # that we did not create. We need to add a 'locally created'
+                #    # flag to every object to filter these out.
+                #
+                #    DistributedObjectUD.notify.warning(
+                #        'delete() called but requestDelete never called for %s: %s'
+                #        % (self.__dict__.get('doId'), self.__class__.__name__))
+                #
+                #    # print a stack trace so we can detect whether this is the
+                #    # result of a network msg.
+                #    # this is slow.
+                #    from direct.showbase.PythonUtil import StackTrace
+                #    DistributedObjectUD.notify.warning(
+                #        'stack trace: %s' % StackTrace())
+
                 self._DOUD_requestedDelete = False
 
                 # Clean up all the pending barriers.
@@ -143,7 +141,7 @@ class DistributedObjectUD(DistributedObjectBase):
         Returns true if the object has been deleted,
         or if it is brand new and hasnt yet been generated.
         """
-        return self.air == None
+        return self.air is None
 
     def isGenerated(self):
         """
@@ -409,10 +407,10 @@ class DistributedObjectUD(DistributedObjectBase):
         self._DOUD_requestedDelete = True
 
     def taskName(self, taskString):
-        return ("%s-%s" % (taskString, self.doId))
+        return "%s-%s" % (taskString, self.doId)
 
     def uniqueName(self, idString):
-        return ("%s-%s" % (idString, self.doId))
+        return "%s-%s" % (idString, self.doId)
 
     def validate(self, avId, bool, msg):
         if not bool:
@@ -475,7 +473,7 @@ class DistributedObjectUD(DistributedObjectBase):
         avId = self.air.getAvatarIdFromSender()
         assert self.notify.debug('setBarrierReady(%s, %s)' % (context, avId))
         barrier = self.__barriers.get(context)
-        if barrier == None:
+        if barrier is None:
             # This may be None if a client was slow and missed an
             # earlier timeout.  Too bad.
             return

direct/src/distributed/DistributedSmoothNode.py

@@ -6,7 +6,9 @@ from .ClockDelta import *
 from . import DistributedNode
 from . import DistributedSmoothNodeBase
 from direct.task.Task import cont
+from direct.task.TaskManagerGlobal import taskMgr
 from direct.showbase import DConfig as config
+from direct.showbase.PythonUtil import report
 
 # This number defines our tolerance for out-of-sync telemetry packets.
 # If a packet appears to have originated from more than MaxFuture
@@ -62,9 +64,7 @@ class DistributedSmoothNode(DistributedNode.DistributedNode,
     """
 
     def __init__(self, cr):
-        try:
-            self.DistributedSmoothNode_initialized
-        except:
+        if not hasattr(self, 'DistributedSmoothNode_initialized'):
             self.DistributedSmoothNode_initialized = 1
             DistributedNode.DistributedNode.__init__(self, cr)
             DistributedSmoothNodeBase.DistributedSmoothNodeBase.__init__(self)
@@ -181,22 +181,22 @@ class DistributedSmoothNode(DistributedNode.DistributedNode,
         self.smoother.setPhonyTimestamp()
         self.smoother.markPosition()
 
-    def _checkResume(self,timestamp):
+    def _checkResume(self, timestamp):
         """
         Determine if we were previously stopped and now need to
         resume movement by making sure any old stored positions
         reflect the node's current position
         """
-        if (self.stopped):
+        if self.stopped:
             currTime = globalClock.getFrameTime()
             now = currTime - self.smoother.getExpectedBroadcastPeriod()
             last = self.smoother.getMostRecentTimestamp()
-            if (now > last):
+            if now > last:
                 # only set a new timestamp postion if we still have
                 # a position being smoothed to (so we don't interrupt
                 # any current smoothing and only do this if the object
                 # is actually locally stopped)
-                if (timestamp == None):
+                if timestamp is None:
                     # no timestamp, use current time
                     local = 0.0
                 else:
@@ -302,7 +302,7 @@ class DistributedSmoothNode(DistributedNode.DistributedNode,
         self.smoother.setR(r)
     @report(types = ['args'], dConfigParam = 'smoothnode')
     def setComponentL(self, l):
-        if (l != self.zoneId):
+        if l != self.zoneId:
             # only perform set location if location is different
             self.setLocation(self.parentId,l)
     @report(types = ['args'], dConfigParam = 'smoothnode')
@@ -360,7 +360,7 @@ class DistributedSmoothNode(DistributedNode.DistributedNode,
             howFarFuture = local - now
             if howFarFuture - chug >= MaxFuture:
                 # Too far off; advise the other client of our clock information.
-                if globalClockDelta.getUncertainty() != None and \
+                if globalClockDelta.getUncertainty() is not None and \
                    realTime - self.lastSuggestResync >= MinSuggestResync and \
                    hasattr(self.cr, 'localAvatarDoId'):
                     self.lastSuggestResync = realTime
@@ -457,9 +457,9 @@ class DistributedSmoothNode(DistributedNode.DistributedNode,
         result = self.peerToPeerResync(
             avId, timestampA, serverTime, uncertainty)
         if result >= 0 and \
-           globalClockDelta.getUncertainty() != None:
+           globalClockDelta.getUncertainty() is not None:
             other = self.cr.doId2do.get(avId)
-            if (not other):
+            if not other:
                 assert self.notify.info(
                     "Warning: couldn't find the avatar %d" % (avId))
             elif hasattr(other, "d_returnResync") and \
@@ -498,7 +498,7 @@ class DistributedSmoothNode(DistributedNode.DistributedNode,
         # If we didn't get anything useful from the other client,
         # maybe our clock is just completely hosed.  Go ask the AI.
         if not gotSync:
-            if self.cr.timeManager != None:
+            if self.cr.timeManager is not None:
                 self.cr.timeManager.synchronize("suggested by %d" % (avId))
 
         return gotSync

direct/src/distributed/DistributedSmoothNodeAI.py

@@ -98,11 +98,10 @@ class DistributedSmoothNodeAI(DistributedNodeAI.DistributedNodeAI,
     def getComponentR(self):
         return self.getR()
     def getComponentL(self):
-        if (self.zoneId):
+        if self.zoneId:
             return self.zoneId
         else:
             # we can't send None over the wire which self.zoneId can sometimes be
             return 0
     def getComponentT(self):
         return 0
-

direct/src/distributed/DistributedSmoothNodeBase.py

@@ -2,6 +2,7 @@
 
 from .ClockDelta import *
 from direct.task import Task
+from direct.task.TaskManagerGlobal import taskMgr
 from direct.showbase.PythonUtil import randFloat, Enum
 from panda3d.direct import CDistributedSmoothNodeBase
 
@@ -58,13 +59,13 @@ class DistributedSmoothNodeBase:
         self.d_broadcastPosHpr = None
 
     def posHprBroadcastStarted(self):
-        return self.d_broadcastPosHpr != None
+        return self.d_broadcastPosHpr is not None
 
     def wantSmoothPosBroadcastTask(self):
         return True
 
     def startPosHprBroadcast(self, period=.2, stagger=0, type=None):
-        if self.cnode == None:
+        if self.cnode is None:
             self.initializeCnode()
 
         BT = DistributedSmoothNodeBase.BroadcastTypes
@@ -117,4 +118,3 @@ class DistributedSmoothNodeBase:
         if self.d_broadcastPosHpr is None:
             self.cnode.initialize(self, self.dclass, self.doId)
         self.cnode.sendEverything()
-

direct/src/distributed/DoCollectionManager.py

@@ -113,7 +113,7 @@ class DoCollectionManager:
             return 1
         if dist2 is None:
             return -1
-        if (dist1 < dist2):
+        if dist1 < dist2:
             return -1
         return 1
 
@@ -270,7 +270,7 @@ class DoCollectionManager:
 
     def deleteDistributedObjects(self):
         # Get rid of all the distributed objects
-        for doId, do in list(self.doId2do.items()):
+        for do in list(self.doId2do.values()):
             self.deleteDistObject(do)
 
         # Get rid of everything that manages distributed objects
@@ -314,14 +314,14 @@ class DoCollectionManager:
     def storeObjectLocation(self, object, parentId, zoneId):
         oldParentId = object.parentId
         oldZoneId = object.zoneId
-        if (oldParentId != parentId):
+        if oldParentId != parentId:
             # notify any existing parent that we're moving away
             oldParentObj = self.doId2do.get(oldParentId)
             if oldParentObj is not None:
                 oldParentObj.handleChildLeave(object, oldZoneId)
             self.deleteObjectLocation(object, oldParentId, oldZoneId)
 
-        elif (oldZoneId != zoneId):
+        elif oldZoneId != zoneId:
             # Remove old location
             oldParentObj = self.doId2do.get(oldParentId)
             if oldParentObj is not None:
@@ -331,8 +331,7 @@ class DoCollectionManager:
             # object is already at that parent and zone
             return
 
-        if ((parentId is None) or (zoneId is None) or
-            (parentId == zoneId == 0)):
+        if parentId is None or zoneId is None or (parentId == zoneId == 0):
             # Do not store null values
             object.parentId = None
             object.zoneId = None
@@ -418,10 +417,10 @@ class DoCollectionManager:
         #assert do.doId in self.doId2do
         location = do.getLocation()
         if location:
-           oldParentId, oldZoneId = location
-           oldParentObj = self.doId2do.get(oldParentId)
-           if oldParentObj:
-               oldParentObj.handleChildLeave(do, oldZoneId)
+            oldParentId, oldZoneId = location
+            oldParentObj = self.doId2do.get(oldParentId)
+            if oldParentObj:
+                oldParentObj.handleChildLeave(do, oldZoneId)
         self.deleteObjectLocation(do, do.parentId, do.zoneId)
         ## location = do.getLocation()
         ## if location is not None:

direct/src/distributed/DoHierarchy.py

@@ -13,7 +13,7 @@ class DoHierarchy:
         self._allDoIds = set()
 
     def isEmpty(self):
-        assert ((len(self._table) == 0) == (len(self._allDoIds) == 0))
+        assert (len(self._table) == 0) == (len(self._allDoIds) == 0)
         return len(self._table) == 0 and len(self._allDoIds) == 0
 
     def __len__(self):
@@ -77,7 +77,7 @@ class DoHierarchy:
                 'deleteObjectLocation(%s %s) not in _allDoIds; duplicate delete()? or invalid previous location on a new object?' % (
                 do.__class__.__name__, do.doId))
         # jbutler: temp hack to get by the assert, this will be fixed soon
-        if (doId not in self._allDoIds):
+        if doId not in self._allDoIds:
             return
         parentZoneDict = self._table.get(parentId)
         if parentZoneDict is not None:

direct/src/distributed/DoInterestManager.py

@@ -12,6 +12,7 @@ from panda3d.direct import *
 from .MsgTypes import *
 from direct.showbase.PythonUtil import *
 from direct.showbase import DirectObject
+from direct.showbase.MessengerGlobal import messenger
 from .PyDatagram import PyDatagram
 from direct.directnotify.DirectNotifyGlobal import directNotify
 import types
@@ -375,7 +376,7 @@ class DoInterestManager(DirectObject.DirectObject):
             return
         autoInterests = obj.getAutoInterests()
         obj._autoInterestHandle = None
-        if not len(autoInterests):
+        if len(autoInterests) == 0:
             return
         obj._autoInterestHandle = self.addAutoInterest(obj.doId, autoInterests, '%s-autoInterest' % obj.__class__.__name__)
     def closeAutoInterests(self, obj):
@@ -658,7 +659,8 @@ if __debug__:
                 if failed:
                     self.stream.write("failures=%d" % failed)
                 if errored:
-                    if failed: self.stream.write(", ")
+                    if failed:
+                        self.stream.write(", ")
                     self.stream.write("errors=%d" % errored)
                 self.stream.writeln(")")
             else:

direct/src/distributed/GridChild.py

@@ -1,5 +1,7 @@
 from direct.distributed.DistributedSmoothNodeBase import DistributedSmoothNodeBase
 from direct.distributed.GridParent import GridParent
+from direct.showbase.PythonUtil import report
+
 
 class GridChild:
     """
@@ -56,7 +58,6 @@ class GridChild:
             for currGridId, interestInfo in self._gridInterests.items():
                 self.cr.removeTaggedInterest(interestInfo[0])
             #self.__clearGridInterest()
-            pass
 
     def isOnAGrid(self):
         return self._gridParent is not None

direct/src/distributed/GridParent.py

@@ -96,7 +96,5 @@ class GridParent:
         else:
             self.av.reparentTo(self.cellOrigin)
 
-        #print "gridParent: reparent to %s" % self.av
-        #print "gridParent: pos = %s, %s" % (self.av.getPos(), self.av.getParent().getPos())
-
-
+        #print("gridParent: reparent to %s" % self.av)
+        #print("gridParent: pos = %s, %s" % (self.av.getPos(), self.av.getParent().getPos()))

direct/src/distributed/InterestWatcher.py

@@ -1,6 +1,8 @@
 from direct.directnotify.DirectNotifyGlobal import directNotify
 from direct.showbase.DirectObject import DirectObject
 from direct.showbase.EventGroup import EventGroup
+from direct.showbase.MessengerGlobal import messenger
+
 
 class InterestWatcher(DirectObject):
     """Object that observes all interests adds/removes over a period of time,
@@ -66,11 +68,9 @@ class InterestWatcher(DirectObject):
     def _handleInterestCloseEvent(self, event, parentId, zoneIdList):
         self._gotEvent = True
         self._eGroup.addEvent(event)
-        """
-        if self._recurse:
-            # this interest is in the process of closing. If an interest
-            # underneath any objects in that interest close, we need to know
-            # about it.
-            self.closingParent2zones.setdefault(parentId, set())
-            self.closingParent2zones[parentId].union(set(zoneIdList))
-            """
+        #if self._recurse:
+        #    # this interest is in the process of closing. If an interest
+        #    # underneath any objects in that interest close, we need to know
+        #    # about it.
+        #    self.closingParent2zones.setdefault(parentId, set())
+        #    self.closingParent2zones[parentId].union(set(zoneIdList))

direct/src/distributed/NetMessenger.py

@@ -90,5 +90,3 @@ class NetMessenger(Messenger):
         else:
             (message, sentArgs) = loads(pickleData)
         Messenger.send(self, message, sentArgs=sentArgs)
-
-

direct/src/distributed/ParentMgr.py

@@ -90,7 +90,7 @@ class ParentMgr:
         if isDefaultValue(token):
             self.notify.error('parent token (for %s) cannot be a default value (%s)' % (repr(parent), token))
 
-        if type(token) is int:
+        if isinstance(token, int):
             if token > 0xFFFFFFFF:
                 self.notify.error('parent token %s (for %s) is out of uint32 range' % (token, repr(parent)))
 

direct/src/distributed/PyDatagram.py

@@ -50,7 +50,7 @@ class PyDatagram(Datagram):
         self.addUint16(code)
 
     def putArg(self, arg, subatomicType, divisor=1):
-        if (divisor == 1):
+        if divisor == 1:
             funcSpecs = self.FuncDict.get(subatomicType)
             if funcSpecs:
                 addFunc, argFunc = funcSpecs

direct/src/distributed/RelatedObjectMgr.py

@@ -2,8 +2,10 @@
 
 # from direct.showbase.ShowBaseGlobal import *
 from direct.showbase import DirectObject
+from direct.task.TaskManagerGlobal import taskMgr
 from direct.directnotify import DirectNotifyGlobal
 
+
 class RelatedObjectMgr(DirectObject.DirectObject):
     """
     This class manages a relationship between DistributedObjects that
@@ -104,7 +106,7 @@ class RelatedObjectMgr(DirectObject.DirectObject):
         doIdList = doIdList[:]
 
         doLaterName = None
-        if timeout != None:
+        if timeout is not None:
             doLaterName = "RelatedObject-%s" % (RelatedObjectMgr.doLaterSequence)
             assert self.notify.debug("doLaterName = %s" % (doLaterName))
 
@@ -115,7 +117,7 @@ class RelatedObjectMgr(DirectObject.DirectObject):
 
         for doId in doIdsPending:
             pendingList = self.pendingObjects.get(doId)
-            if pendingList == None:
+            if pendingList is None:
                 pendingList = []
                 self.pendingObjects[doId] = pendingList
                 self.__listenFor(doId)
@@ -171,7 +173,6 @@ class RelatedObjectMgr(DirectObject.DirectObject):
         assert self.notify.debug("timeout expired for %s (remaining: %s)" % (doIdList, doIdsPending))
 
         self.__removePending(tuple, doIdsPending)
-
         if timeoutCallback:
             timeoutCallback(doIdList)
         else:
@@ -248,10 +249,9 @@ class RelatedObjectMgr(DirectObject.DirectObject):
             if doId:
                 object = self.cr.doId2do.get(doId)
                 objects.append(object)
-                if object == None:
+                if object is None:
                     doIdsPending.append(doId)
             else:
                 objects.append(None)
 
         return objects, doIdsPending
-

direct/src/distributed/ServerRepository.py

@@ -4,6 +4,7 @@ from panda3d.core import *
 from panda3d.direct import *
 from direct.distributed.MsgTypesCMU import *
 from direct.task import Task
+from direct.task.TaskManagerGlobal import taskMgr
 from direct.directnotify import DirectNotifyGlobal
 from direct.distributed.PyDatagram import PyDatagram
 
@@ -84,7 +85,7 @@ class ServerRepository:
                  threadedNet = None):
         if threadedNet is None:
             # Default value.
-            threadedNet = config.GetBool('threaded-net', False)
+            threadedNet = ConfigVariableBool('threaded-net', False).value
 
         # Set up networking interfaces.
         numThreads = 0
@@ -217,7 +218,7 @@ class ServerRepository:
         self.hashVal = 0
 
         dcImports = {}
-        if dcFileNames == None:
+        if dcFileNames is None:
             readResult = dcFile.readAll()
             if not readResult:
                 self.notify.error("Could not read dc file.")
@@ -269,11 +270,11 @@ class ServerRepository:
             classDef = dcImports.get(className)
 
             # Also try it without the dcSuffix.
-            if classDef == None:
+            if classDef is None:
                 className = dclass.getName()
                 classDef = dcImports.get(className)
 
-            if classDef == None:
+            if classDef is None:
                 self.notify.debug("No class definition for %s." % (className))
             else:
                 if inspect.ismodule(classDef):
@@ -458,7 +459,7 @@ class ServerRepository:
             return
 
         dcfield = object.dclass.getFieldByIndex(fieldId)
-        if dcfield == None:
+        if dcfield is None:
             self.notify.warning(
                 "Ignoring update for field %s on object %s from client %s; no such field for class %s." % (
                 fieldId, doId, client.doIdBase, object.dclass.getName()))

direct/src/distributed/StagedObject.py

@@ -61,4 +61,3 @@ class StagedObject:
 
     def isOffStage(self):
         return self.__state == StagedObject.OFF
-

direct/src/distributed/TimeManager.py

@@ -1,6 +1,7 @@
-from direct.showbase.DirectObject import *
 from panda3d.core import *
+from direct.showbase.DirectObject import *
 from direct.task import Task
+from direct.task.TaskManagerGlobal import taskMgr
 from direct.distributed import DistributedObject
 from direct.directnotify import DirectNotifyGlobal
 from direct.distributed.ClockDelta import globalClockDelta
@@ -144,7 +145,6 @@ class TimeManager(DistributedObject.DistributedObject):
 
         return 1
 
-
     def serverTime(self, context, timestamp):
         """serverTime(self, int8 context, int32 timestamp)
 
@@ -184,4 +184,3 @@ class TimeManager(DistributedObject.DistributedObject):
 
         messenger.send("gotTimeSync", taskChain = 'default')
         messenger.send(self.cr.uniqueName("gotTimeSync"), taskChain = 'default')
-

direct/src/distributed/TimeManagerAI.py

@@ -1,5 +1,5 @@
-from direct.distributed.ClockDelta import *
 from panda3d.core import *
+from direct.distributed.ClockDelta import *
 from direct.distributed import DistributedObjectAI
 
 class TimeManagerAI(DistributedObjectAI.DistributedObjectAI):

direct/src/extensions_native/CInterval_extensions.py

@@ -67,7 +67,7 @@ def popupControls(self, tl = None):
         EntryScale = importlib.import_module('direct.tkwidgets.EntryScale')
         tkinter = importlib.import_module('tkinter')
 
-        if tl == None:
+        if tl is None:
             tl = tkinter.Toplevel()
             tl.title('Interval Controls')
         outerFrame = tkinter.Frame(tl)

direct/src/extensions_native/HTTPChannel_extensions.py

@@ -6,10 +6,6 @@
 from panda3d import core
 from .extension_native_helpers import Dtool_funcToMethod
 
-"""
-HTTPChannel-extensions module: contains methods to extend functionality
-of the HTTPChannel class
-"""
 
 def spawnTask(self, name = None, callback = None, extraArgs = []):
         """Spawns a task to service the download recently requested
@@ -23,6 +19,7 @@ def spawnTask(self, name = None, callback = None, extraArgs = []):
         if not name:
             name = str(self.getUrl())
         from direct.task import Task
+        from direct.task.TaskManagerGlobal import taskMgr
         task = Task.Task(self.doTask)
         task.callback = callback
         task.callbackArgs = extraArgs

direct/src/extensions_native/Mat3_extensions.py

@@ -12,11 +12,11 @@ from panda3d.core import Mat3
 from .extension_native_helpers import Dtool_funcToMethod
 
 def pPrintValues(self):
-        """
-        Pretty print
-        """
-        return "\n%s\n%s\n%s" % (
-            self.getRow(0).pPrintValues(), self.getRow(1).pPrintValues(), self.getRow(2).pPrintValues())
+    """
+    Pretty print
+    """
+    return "\n%s\n%s\n%s" % (
+        self.getRow(0).pPrintValues(), self.getRow(1).pPrintValues(), self.getRow(2).pPrintValues())
 Dtool_funcToMethod(pPrintValues, Mat3)
 del pPrintValues
 #####################################################################

direct/src/extensions_native/NodePath_extensions.py

@@ -105,6 +105,7 @@ def remove(self):
         print("Warning: NodePath.remove() is deprecated.  Use remove_node() instead.")
         # Send message in case anyone needs to do something
         # before node is deleted
+        from direct.showbase.MessengerGlobal import messenger
         messenger.send('preRemoveNodePath', [self])
         # Remove nodePath
         self.removeNode()
@@ -315,7 +316,7 @@ def printTransform(self, other = None, sd = 2, fRecursive = 0):
     from panda3d.core import Vec3
     fmtStr = '%%0.%df' % sd
     name = self.getName()
-    if other == None:
+    if other is None:
         transform = self.getTransform()
     else:
         transform = self.getTransform(other)
@@ -464,7 +465,7 @@ def showCS(self, mask = None):
         npc = self.findAllMatches('**/+CollisionNode')
         for p in range(0, npc.getNumPaths()):
             np = npc[p]
-            if (mask == None or (np.node().getIntoCollideMask() & mask).getWord()):
+            if (mask is None or (np.node().getIntoCollideMask() & mask).getWord()):
                 np.show()
 
 Dtool_funcToMethod(showCS, NodePath)
@@ -482,7 +483,7 @@ def hideCS(self, mask = None):
         npc = self.findAllMatches('**/+CollisionNode')
         for p in range(0, npc.getNumPaths()):
             np = npc[p]
-            if (mask == None or (np.node().getIntoCollideMask() & mask).getWord()):
+            if (mask is None or (np.node().getIntoCollideMask() & mask).getWord()):
                 np.hide()
 
 Dtool_funcToMethod(hideCS, NodePath)
@@ -639,15 +640,15 @@ def flattenMultitex(self, stateFrom = None, target = None,
                         useGeom = 0, allowTexMat = 0, win = None):
         from panda3d.core import MultitexReducer
         mr = MultitexReducer()
-        if target != None:
+        if target is not None:
             mr.setTarget(target)
         mr.setUseGeom(useGeom)
         mr.setAllowTexMat(allowTexMat)
 
-        if win == None:
+        if win is None:
             win = base.win
 
-        if stateFrom == None:
+        if stateFrom is None:
             mr.scan(self)
         else:
             mr.scan(self, stateFrom)
@@ -664,7 +665,7 @@ def removeNonCollisions(self):
         # remove anything that is not collision-related
         print("NodePath.removeNonCollisions() is deprecated")
         stack = [self]
-        while len(stack):
+        while len(stack) > 0:
                 np = stack.pop()
                 # if there are no CollisionNodes under this node, remove it
                 if np.find('**/+CollisionNode').isEmpty():
@@ -706,22 +707,44 @@ def r_subdivideCollisions(self, solids, numSolidsInLeaves):
         if len(solids) <= numSolidsInLeaves:
             return solids
         origins = []
-        avgX = 0; avgY = 0; avgZ = 0
-        minX = None; minY = None; minZ = None
-        maxX = None; maxY = None; maxZ = None
+        avgX = 0
+        avgY = 0
+        avgZ = 0
+        minX = None
+        minY = None
+        minZ = None
+        maxX = None
+        maxY = None
+        maxZ = None
         for solid in solids:
             origin = solid.getCollisionOrigin()
             origins.append(origin)
-            x = origin.getX(); y = origin.getY(); z = origin.getZ()
-            avgX += x; avgY += y; avgZ += z
+            x = origin.getX()
+            y = origin.getY()
+            z = origin.getZ()
+            avgX += x
+            avgY += y
+            avgZ += z
             if minX is None:
-                minX = x; minY = y; minZ = z
-                maxX = x; maxY = y; maxZ = z
+                minX = x
+                minY = y
+                minZ = z
+                maxX = x
+                maxY = y
+                maxZ = z
             else:
-                minX = min(x, minX); minY = min(y, minY); minZ = min(z, minZ)
-                maxX = max(x, maxX); maxY = max(y, maxY); maxZ = max(z, maxZ)
-        avgX /= len(solids); avgY /= len(solids); avgZ /= len(solids)
-        extentX = maxX - minX; extentY = maxY - minY; extentZ = maxZ - minZ
+                minX = min(x, minX)
+                minY = min(y, minY)
+                minZ = min(z, minZ)
+                maxX = max(x, maxX)
+                maxY = max(y, maxY)
+                maxZ = max(z, maxZ)
+        avgX /= len(solids)
+        avgY /= len(solids)
+        avgZ /= len(solids)
+        extentX = maxX - minX
+        extentY = maxY - minY
+        extentZ = maxZ - minZ
         maxExtent = max(max(extentX, extentY), extentZ)
         # sparse octree
         xyzSolids = []
@@ -738,60 +761,62 @@ def r_subdivideCollisions(self, solids, numSolidsInLeaves):
         # throw out axes that are not close to the max axis extent; try and keep
         # the divisions square/spherical
         if extentX < (maxExtent * .75) or extentX > (maxExtent * 1.25):
-                midX += maxExtent
+            midX += maxExtent
         if extentY < (maxExtent * .75) or extentY > (maxExtent * 1.25):
-                midY += maxExtent
+            midY += maxExtent
         if extentZ < (maxExtent * .75) or extentZ > (maxExtent * 1.25):
-                midZ += maxExtent
-        for i in range(len(solids)):
-                origin = origins[i]
-                x = origin.getX(); y = origin.getY(); z = origin.getZ()
-                if x < midX:
-                        if y < midY:
-                                if z < midZ:
-                                        xyzSolids.append(solids[i])
-                                else:
-                                        xyZSolids.append(solids[i])
-                        else:
-                                if z < midZ:
-                                        xYzSolids.append(solids[i])
-                                else:
-                                        xYZSolids.append(solids[i])
+            midZ += maxExtent
+        for i, solid in enumerate(solids):
+            origin = origins[i]
+            x = origin.getX()
+            y = origin.getY()
+            z = origin.getZ()
+            if x < midX:
+                if y < midY:
+                    if z < midZ:
+                        xyzSolids.append(solids[i])
+                    else:
+                        xyZSolids.append(solids[i])
                 else:
-                        if y < midY:
-                                if z < midZ:
-                                        XyzSolids.append(solids[i])
-                                else:
-                                        XyZSolids.append(solids[i])
-                        else:
-                                if z < midZ:
-                                        XYzSolids.append(solids[i])
-                                else:
-                                        XYZSolids.append(solids[i])
+                    if z < midZ:
+                        xYzSolids.append(solids[i])
+                    else:
+                        xYZSolids.append(solids[i])
+            else:
+                if y < midY:
+                    if z < midZ:
+                        XyzSolids.append(solids[i])
+                    else:
+                        XyZSolids.append(solids[i])
+                else:
+                    if z < midZ:
+                        XYzSolids.append(solids[i])
+                    else:
+                        XYZSolids.append(solids[i])
         newSolids = []
-        if len(xyzSolids):
-                newSolids.append(self.r_subdivideCollisions(xyzSolids, numSolidsInLeaves))
-        if len(XyzSolids):
-                newSolids.append(self.r_subdivideCollisions(XyzSolids, numSolidsInLeaves))
-        if len(xYzSolids):
-                newSolids.append(self.r_subdivideCollisions(xYzSolids, numSolidsInLeaves))
-        if len(XYzSolids):
-                newSolids.append(self.r_subdivideCollisions(XYzSolids, numSolidsInLeaves))
-        if len(xyZSolids):
-                newSolids.append(self.r_subdivideCollisions(xyZSolids, numSolidsInLeaves))
-        if len(XyZSolids):
-                newSolids.append(self.r_subdivideCollisions(XyZSolids, numSolidsInLeaves))
-        if len(xYZSolids):
-                newSolids.append(self.r_subdivideCollisions(xYZSolids, numSolidsInLeaves))
-        if len(XYZSolids):
-                newSolids.append(self.r_subdivideCollisions(XYZSolids, numSolidsInLeaves))
+        if len(xyzSolids) > 0:
+            newSolids.append(self.r_subdivideCollisions(xyzSolids, numSolidsInLeaves))
+        if len(XyzSolids) > 0:
+            newSolids.append(self.r_subdivideCollisions(XyzSolids, numSolidsInLeaves))
+        if len(xYzSolids) > 0:
+            newSolids.append(self.r_subdivideCollisions(xYzSolids, numSolidsInLeaves))
+        if len(XYzSolids) > 0:
+            newSolids.append(self.r_subdivideCollisions(XYzSolids, numSolidsInLeaves))
+        if len(xyZSolids) > 0:
+            newSolids.append(self.r_subdivideCollisions(xyZSolids, numSolidsInLeaves))
+        if len(XyZSolids) > 0:
+            newSolids.append(self.r_subdivideCollisions(XyZSolids, numSolidsInLeaves))
+        if len(xYZSolids) > 0:
+            newSolids.append(self.r_subdivideCollisions(xYZSolids, numSolidsInLeaves))
+        if len(XYZSolids) > 0:
+            newSolids.append(self.r_subdivideCollisions(XYZSolids, numSolidsInLeaves))
         #import pdb;pdb.set_trace()
         return newSolids
 
 def r_constructCollisionTree(self, solidTree, parentNode, colName):
         from panda3d.core import CollisionNode
         for item in solidTree:
-            if type(item[0]) == type([]):
+            if isinstance(item[0], list):
                 newNode = parentNode.attachNewNode('%s-branch' % colName)
                 self.r_constructCollisionTree(item, newNode, colName)
             else:

direct/src/filter/CommonFilters.py

@@ -16,6 +16,13 @@ clunky approach.  - Josh
 
 """
 
+from panda3d.core import LVecBase4, LPoint2
+from panda3d.core import AuxBitplaneAttrib
+from panda3d.core import Texture, Shader, ATSNone
+from panda3d.core import FrameBufferProperties
+
+from direct.task.TaskManagerGlobal import taskMgr
+
 from .FilterManager import FilterManager
 from .filterBloomI import BLOOM_I
 from .filterBloomX import BLOOM_X
@@ -24,14 +31,8 @@ from .filterBlurX import BLUR_X
 from .filterBlurY import BLUR_Y
 from .filterCopy import COPY
 from .filterDown4 import DOWN_4
-from panda3d.core import LVecBase4, LPoint2
-from panda3d.core import Filename
-from panda3d.core import AuxBitplaneAttrib
-from panda3d.core import Texture, Shader, ATSNone
-from panda3d.core import FrameBufferProperties
-import os
 
-CARTOON_BODY="""
+CARTOON_BODY = """
 float4 cartoondelta = k_cartoonseparation * texpix_txaux.xwyw;
 float4 cartoon_c0 = tex2D(k_txaux, %(texcoord)s + cartoondelta.xy);
 float4 cartoon_c1 = tex2D(k_txaux, %(texcoord)s - cartoondelta.xy);
@@ -48,7 +49,7 @@ o_color = lerp(o_color, k_cartooncolor, cartoon_thresh);
 # We fill in the actual value of numsamples in the loop limit
 # when the shader is configured.
 #
-SSAO_BODY="""//Cg
+SSAO_BODY = """//Cg
 
 void vshader(float4 vtx_position : POSITION,
              out float4 l_position : POSITION,
@@ -100,8 +101,8 @@ void fshader(out float4 o_color : COLOR,
 class FilterConfig:
     pass
 
-class CommonFilters:
 
+class CommonFilters:
     """ Class CommonFilters implements certain common image postprocessing
     filters.  The constructor requires a filter builder as a parameter. """
 
@@ -118,20 +119,19 @@ class CommonFilters:
         self.bloom = []
         self.blur = []
         self.ssao = []
-        if self.task != None:
-          taskMgr.remove(self.task)
-          self.task = None
+        if self.task is not None:
+            taskMgr.remove(self.task)
+            self.task = None
 
     def reconfigure(self, fullrebuild, changed):
         """ Reconfigure is called whenever any configuration change is made. """
 
         configuration = self.configuration
 
-        if (fullrebuild):
-
+        if fullrebuild:
             self.cleanup()
 
-            if (len(configuration) == 0):
+            if len(configuration) == 0:
                 return
 
             if not self.manager.win.gsg.getSupportsBasicShaders():
@@ -141,12 +141,12 @@ class CommonFilters:
             needtex = set(["color"])
             needtexcoord = set(["color"])
 
-            if ("CartoonInk" in configuration):
+            if "CartoonInk" in configuration:
                 needtex.add("aux")
                 auxbits |= AuxBitplaneAttrib.ABOAuxNormal
                 needtexcoord.add("aux")
 
-            if ("AmbientOcclusion" in configuration):
+            if "AmbientOcclusion" in configuration:
                 needtex.add("depth")
                 needtex.add("ssao0")
                 needtex.add("ssao1")
@@ -155,12 +155,12 @@ class CommonFilters:
                 auxbits |= AuxBitplaneAttrib.ABOAuxNormal
                 needtexcoord.add("ssao2")
 
-            if ("BlurSharpen" in configuration):
+            if "BlurSharpen" in configuration:
                 needtex.add("blur0")
                 needtex.add("blur1")
                 needtexcoord.add("blur1")
 
-            if ("Bloom" in configuration):
+            if "Bloom" in configuration:
                 needtex.add("bloom0")
                 needtex.add("bloom1")
                 needtex.add("bloom2")
@@ -168,10 +168,10 @@ class CommonFilters:
                 auxbits |= AuxBitplaneAttrib.ABOGlow
                 needtexcoord.add("bloom3")
 
-            if ("ViewGlow" in configuration):
+            if "ViewGlow" in configuration:
                 auxbits |= AuxBitplaneAttrib.ABOGlow
 
-            if ("VolumetricLighting" in configuration):
+            if "VolumetricLighting" in configuration:
                 needtex.add(configuration["VolumetricLighting"].source)
 
             for tex in needtex:
@@ -188,47 +188,47 @@ class CommonFilters:
                 clamping = False
 
             self.finalQuad = self.manager.renderSceneInto(textures = self.textures, auxbits=auxbits, fbprops=fbprops, clamping=clamping)
-            if (self.finalQuad == None):
+            if self.finalQuad is None:
                 self.cleanup()
                 return False
 
-            if ("BlurSharpen" in configuration):
-                blur0=self.textures["blur0"]
-                blur1=self.textures["blur1"]
-                self.blur.append(self.manager.renderQuadInto("filter-blur0", colortex=blur0,div=2))
+            if "BlurSharpen" in configuration:
+                blur0 = self.textures["blur0"]
+                blur1 = self.textures["blur1"]
+                self.blur.append(self.manager.renderQuadInto("filter-blur0", colortex=blur0, div=2))
                 self.blur.append(self.manager.renderQuadInto("filter-blur1", colortex=blur1))
                 self.blur[0].setShaderInput("src", self.textures["color"])
                 self.blur[0].setShader(Shader.make(BLUR_X, Shader.SL_Cg))
                 self.blur[1].setShaderInput("src", blur0)
                 self.blur[1].setShader(Shader.make(BLUR_Y, Shader.SL_Cg))
 
-            if ("AmbientOcclusion" in configuration):
-                ssao0=self.textures["ssao0"]
-                ssao1=self.textures["ssao1"]
-                ssao2=self.textures["ssao2"]
+            if "AmbientOcclusion" in configuration:
+                ssao0 = self.textures["ssao0"]
+                ssao1 = self.textures["ssao1"]
+                ssao2 = self.textures["ssao2"]
                 self.ssao.append(self.manager.renderQuadInto("filter-ssao0", colortex=ssao0))
-                self.ssao.append(self.manager.renderQuadInto("filter-ssao1", colortex=ssao1,div=2))
+                self.ssao.append(self.manager.renderQuadInto("filter-ssao1", colortex=ssao1, div=2))
                 self.ssao.append(self.manager.renderQuadInto("filter-ssao2", colortex=ssao2))
                 self.ssao[0].setShaderInput("depth", self.textures["depth"])
                 self.ssao[0].setShaderInput("normal", self.textures["aux"])
-                self.ssao[0].setShaderInput("random", loader.loadTexture("maps/random.rgb"))
+                self.ssao[0].setShaderInput("random", base.loader.loadTexture("maps/random.rgb"))
                 self.ssao[0].setShader(Shader.make(SSAO_BODY % configuration["AmbientOcclusion"].numsamples, Shader.SL_Cg))
                 self.ssao[1].setShaderInput("src", ssao0)
                 self.ssao[1].setShader(Shader.make(BLUR_X, Shader.SL_Cg))
                 self.ssao[2].setShaderInput("src", ssao1)
                 self.ssao[2].setShader(Shader.make(BLUR_Y, Shader.SL_Cg))
 
-            if ("Bloom" in configuration):
+            if "Bloom" in configuration:
                 bloomconf = configuration["Bloom"]
-                bloom0=self.textures["bloom0"]
-                bloom1=self.textures["bloom1"]
-                bloom2=self.textures["bloom2"]
-                bloom3=self.textures["bloom3"]
-                if (bloomconf.size == "large"):
+                bloom0 = self.textures["bloom0"]
+                bloom1 = self.textures["bloom1"]
+                bloom2 = self.textures["bloom2"]
+                bloom3 = self.textures["bloom3"]
+                if bloomconf.size == "large":
                     scale=8
                     downsamplerName="filter-down4"
                     downsampler=DOWN_4
-                elif (bloomconf.size == "medium"):
+                elif bloomconf.size == "medium":
                     scale=4
                     downsamplerName="filter-copy"
                     downsampler=COPY
@@ -282,7 +282,7 @@ class CommonFilters:
             for texcoord, padTex in texcoordPadding.items():
                 if padTex is not None:
                     text += "  uniform float4 texpad_tx%s,\n" % (padTex)
-                    if ("HalfPixelShift" in configuration):
+                    if "HalfPixelShift" in configuration:
                         text += "  uniform float4 texpix_tx%s,\n" % (padTex)
 
             for i, name in texcoordSets:
@@ -298,7 +298,7 @@ class CommonFilters:
                 else:
                     text += "  %s = (vtx_position.xz * texpad_tx%s.xy) + texpad_tx%s.xy;\n" % (texcoord, padTex, padTex)
 
-                    if ("HalfPixelShift" in configuration):
+                    if "HalfPixelShift" in configuration:
                         text += "  %s += texpix_tx%s.xy * 0.5;\n" % (texcoord, padTex)
 
             text += "}\n"
@@ -311,37 +311,37 @@ class CommonFilters:
             for key in self.textures:
                 text += "  uniform sampler2D k_tx" + key + ",\n"
 
-            if ("CartoonInk" in configuration):
+            if "CartoonInk" in configuration:
                 text += "  uniform float4 k_cartoonseparation,\n"
                 text += "  uniform float4 k_cartooncolor,\n"
                 text += "  uniform float4 texpix_txaux,\n"
 
-            if ("BlurSharpen" in configuration):
+            if "BlurSharpen" in configuration:
                 text += "  uniform float4 k_blurval,\n"
 
-            if ("VolumetricLighting" in configuration):
+            if "VolumetricLighting" in configuration:
                 text += "  uniform float4 k_casterpos,\n"
                 text += "  uniform float4 k_vlparams,\n"
 
-            if ("ExposureAdjust" in configuration):
+            if "ExposureAdjust" in configuration:
                 text += "  uniform float k_exposure,\n"
 
             text += "  out float4 o_color : COLOR)\n"
             text += "{\n"
             text += "  o_color = tex2D(k_txcolor, %s);\n" % (texcoords["color"])
-            if ("CartoonInk" in configuration):
+            if "CartoonInk" in configuration:
                 text += CARTOON_BODY % {"texcoord" : texcoords["aux"]}
-            if ("AmbientOcclusion" in configuration):
+            if "AmbientOcclusion" in configuration:
                 text += "  o_color *= tex2D(k_txssao2, %s).r;\n" % (texcoords["ssao2"])
-            if ("BlurSharpen" in configuration):
+            if "BlurSharpen" in configuration:
                 text += "  o_color = lerp(tex2D(k_txblur1, %s), o_color, k_blurval.x);\n" % (texcoords["blur1"])
-            if ("Bloom" in configuration):
-                text += "  o_color = saturate(o_color);\n";
+            if "Bloom" in configuration:
+                text += "  o_color = saturate(o_color);\n"
                 text += "  float4 bloom = 0.5 * tex2D(k_txbloom3, %s);\n" % (texcoords["bloom3"])
                 text += "  o_color = 1-((1-bloom)*(1-o_color));\n"
-            if ("ViewGlow" in configuration):
+            if "ViewGlow" in configuration:
                 text += "  o_color.r = o_color.a;\n"
-            if ("VolumetricLighting" in configuration):
+            if "VolumetricLighting" in configuration:
                 text += "  float decay = 1.0f;\n"
                 text += "  float2 curcoord = %s;\n" % (texcoords["color"])
                 text += "  float2 lightdir = curcoord - k_casterpos.xy;\n"
@@ -357,15 +357,15 @@ class CommonFilters:
                 text += "  }\n"
                 text += "  o_color += float4(vlcolor * k_vlparams.z, 1);\n"
 
-            if ("ExposureAdjust" in configuration):
+            if "ExposureAdjust" in configuration:
                 text += "  o_color.rgb *= k_exposure;\n"
 
             # With thanks to Stephen Hill!
-            if ("HighDynamicRange" in configuration):
+            if "HighDynamicRange" in configuration:
                 text += "  float3 aces_color = mul(aces_input_mat, o_color.rgb);\n"
                 text += "  o_color.rgb = saturate(mul(aces_output_mat, (aces_color * (aces_color + 0.0245786f) - 0.000090537f) / (aces_color * (0.983729f * aces_color + 0.4329510f) + 0.238081f)));\n"
 
-            if ("GammaAdjust" in configuration):
+            if "GammaAdjust" in configuration:
                 gamma = configuration["GammaAdjust"]
                 if gamma == 0.5:
                     text += "  o_color.rgb = sqrt(o_color.rgb);\n"
@@ -374,12 +374,12 @@ class CommonFilters:
                 elif gamma != 1.0:
                     text += "  o_color.rgb = pow(o_color.rgb, %ff);\n" % (gamma)
 
-            if ("SrgbEncode" in configuration):
+            if "SrgbEncode" in configuration:
                 text += "  o_color.r = (o_color.r < 0.0031308) ? (o_color.r * 12.92) : (1.055 * pow(o_color.r, 0.41666) - 0.055);\n"
                 text += "  o_color.g = (o_color.g < 0.0031308) ? (o_color.g * 12.92) : (1.055 * pow(o_color.g, 0.41666) - 0.055);\n"
                 text += "  o_color.b = (o_color.b < 0.0031308) ? (o_color.b * 12.92) : (1.055 * pow(o_color.b, 0.41666) - 0.055);\n"
 
-            if ("Inverted" in configuration):
+            if "Inverted" in configuration:
                 text += "  o_color = float4(1, 1, 1, 1) - o_color;\n"
             text += "}\n"
 
@@ -392,19 +392,19 @@ class CommonFilters:
 
             self.task = taskMgr.add(self.update, "common-filters-update")
 
-        if (changed == "CartoonInk") or fullrebuild:
-            if ("CartoonInk" in configuration):
+        if changed == "CartoonInk" or fullrebuild:
+            if "CartoonInk" in configuration:
                 c = configuration["CartoonInk"]
                 self.finalQuad.setShaderInput("cartoonseparation", LVecBase4(c.separation, 0, c.separation, 0))
                 self.finalQuad.setShaderInput("cartooncolor", c.color)
 
-        if (changed == "BlurSharpen") or fullrebuild:
-            if ("BlurSharpen" in configuration):
+        if changed == "BlurSharpen" or fullrebuild:
+            if "BlurSharpen" in configuration:
                 blurval = configuration["BlurSharpen"]
                 self.finalQuad.setShaderInput("blurval", LVecBase4(blurval, blurval, blurval, blurval))
 
-        if (changed == "Bloom") or fullrebuild:
-            if ("Bloom" in configuration):
+        if changed == "Bloom" or fullrebuild:
+            if "Bloom" in configuration:
                 bloomconf = configuration["Bloom"]
                 intensity = bloomconf.intensity * 3.0
                 self.bloom[0].setShaderInput("blend", bloomconf.blendx, bloomconf.blendy, bloomconf.blendz, bloomconf.blendw * 2.0)
@@ -412,20 +412,20 @@ class CommonFilters:
                 self.bloom[0].setShaderInput("desat", bloomconf.desat)
                 self.bloom[3].setShaderInput("intensity", intensity, intensity, intensity, intensity)
 
-        if (changed == "VolumetricLighting") or fullrebuild:
-            if ("VolumetricLighting" in configuration):
+        if changed == "VolumetricLighting" or fullrebuild:
+            if "VolumetricLighting" in configuration:
                 config = configuration["VolumetricLighting"]
                 tcparam = config.density / float(config.numsamples)
                 self.finalQuad.setShaderInput("vlparams", tcparam, config.decay, config.exposure, 0.0)
 
-        if (changed == "AmbientOcclusion") or fullrebuild:
-            if ("AmbientOcclusion" in configuration):
+        if changed == "AmbientOcclusion" or fullrebuild:
+            if "AmbientOcclusion" in configuration:
                 config = configuration["AmbientOcclusion"]
                 self.ssao[0].setShaderInput("params1", config.numsamples, -float(config.amount) / config.numsamples, config.radius, 0)
                 self.ssao[0].setShaderInput("params2", config.strength, config.falloff, 0, 0)
 
-        if (changed == "ExposureAdjust") or fullrebuild:
-            if ("ExposureAdjust" in configuration):
+        if changed == "ExposureAdjust" or fullrebuild:
+            if "ExposureAdjust" in configuration:
                 stops = configuration["ExposureAdjust"]
                 self.finalQuad.setShaderInput("exposure", 2 ** stops)
 
@@ -441,11 +441,11 @@ class CommonFilters:
             casterpos = LPoint2()
             self.manager.camera.node().getLens().project(caster.getPos(self.manager.camera), casterpos)
             self.finalQuad.setShaderInput("casterpos", LVecBase4(casterpos.getX() * 0.5 + 0.5, (casterpos.getY() * 0.5 + 0.5), 0, 0))
-        if task != None:
+        if task is not None:
             return task.cont
 
     def setCartoonInk(self, separation=1, color=(0, 0, 0, 1)):
-        fullrebuild = (("CartoonInk" in self.configuration) == False)
+        fullrebuild = ("CartoonInk" not in self.configuration)
         newconfig = FilterConfig()
         newconfig.separation = separation
         newconfig.color = color
@@ -453,24 +453,30 @@ class CommonFilters:
         return self.reconfigure(fullrebuild, "CartoonInk")
 
     def delCartoonInk(self):
-        if ("CartoonInk" in self.configuration):
+        if "CartoonInk" in self.configuration:
             del self.configuration["CartoonInk"]
             return self.reconfigure(True, "CartoonInk")
         return True
 
     def setBloom(self, blend=(0.3,0.4,0.3,0.0), mintrigger=0.6, maxtrigger=1.0, desat=0.6, intensity=1.0, size="medium"):
-        if   (size==0): size="off"
-        elif (size==1): size="small"
-        elif (size==2): size="medium"
-        elif (size==3): size="large"
-        if (size=="off"):
+        if size == 0 or size == "off":
             self.delBloom()
             return
-        if (maxtrigger==None): maxtrigger=mintrigger+0.8
+        elif size == 1:
+            size = "small"
+        elif size == 2:
+            size = "medium"
+        elif size == 3:
+            size = "large"
+
+        if maxtrigger is None:
+            maxtrigger = mintrigger + 0.8
+
         oldconfig = self.configuration.get("Bloom", None)
         fullrebuild = True
-        if (oldconfig) and (oldconfig.size == size):
+        if oldconfig and oldconfig.size == size:
             fullrebuild = False
+
         newconfig = FilterConfig()
         (newconfig.blendx, newconfig.blendy, newconfig.blendz, newconfig.blendw) = blend
         newconfig.maxtrigger = maxtrigger
@@ -482,40 +488,40 @@ class CommonFilters:
         return self.reconfigure(fullrebuild, "Bloom")
 
     def delBloom(self):
-        if ("Bloom" in self.configuration):
+        if "Bloom" in self.configuration:
             del self.configuration["Bloom"]
             return self.reconfigure(True, "Bloom")
         return True
 
     def setHalfPixelShift(self):
-        fullrebuild = (("HalfPixelShift" in self.configuration) == False)
+        fullrebuild = ("HalfPixelShift" not in self.configuration)
         self.configuration["HalfPixelShift"] = 1
         return self.reconfigure(fullrebuild, "HalfPixelShift")
 
     def delHalfPixelShift(self):
-        if ("HalfPixelShift" in self.configuration):
+        if "HalfPixelShift" in self.configuration:
             del self.configuration["HalfPixelShift"]
             return self.reconfigure(True, "HalfPixelShift")
         return True
 
     def setViewGlow(self):
-        fullrebuild = (("ViewGlow" in self.configuration) == False)
+        fullrebuild = ("ViewGlow" not in self.configuration)
         self.configuration["ViewGlow"] = 1
         return self.reconfigure(fullrebuild, "ViewGlow")
 
     def delViewGlow(self):
-        if ("ViewGlow" in self.configuration):
+        if "ViewGlow" in self.configuration:
             del self.configuration["ViewGlow"]
             return self.reconfigure(True, "ViewGlow")
         return True
 
     def setInverted(self):
-        fullrebuild = (("Inverted" in self.configuration) == False)
+        fullrebuild = ("Inverted" not in self.configuration)
         self.configuration["Inverted"] = 1
         return self.reconfigure(fullrebuild, "Inverted")
 
     def delInverted(self):
-        if ("Inverted" in self.configuration):
+        if "Inverted" in self.configuration:
             del self.configuration["Inverted"]
             return self.reconfigure(True, "Inverted")
         return True
@@ -523,7 +529,7 @@ class CommonFilters:
     def setVolumetricLighting(self, caster, numsamples = 32, density = 5.0, decay = 0.1, exposure = 0.1, source = "color"):
         oldconfig = self.configuration.get("VolumetricLighting", None)
         fullrebuild = True
-        if (oldconfig) and (oldconfig.source == source) and (oldconfig.numsamples == int(numsamples)):
+        if oldconfig and oldconfig.source == source and oldconfig.numsamples == int(numsamples):
             fullrebuild = False
         newconfig = FilterConfig()
         newconfig.caster = caster
@@ -536,7 +542,7 @@ class CommonFilters:
         return self.reconfigure(fullrebuild, "VolumetricLighting")
 
     def delVolumetricLighting(self):
-        if ("VolumetricLighting" in self.configuration):
+        if "VolumetricLighting" in self.configuration:
             del self.configuration["VolumetricLighting"]
             return self.reconfigure(True, "VolumetricLighting")
         return True
@@ -544,20 +550,20 @@ class CommonFilters:
     def setBlurSharpen(self, amount=0.0):
         """Enables the blur/sharpen filter. If the 'amount' parameter is 1.0, it will not have effect.
         A value of 0.0 means fully blurred, and a value higher than 1.0 sharpens the image."""
-        fullrebuild = (("BlurSharpen" in self.configuration) == False)
+        fullrebuild = ("BlurSharpen" not in self.configuration)
         self.configuration["BlurSharpen"] = amount
         return self.reconfigure(fullrebuild, "BlurSharpen")
 
     def delBlurSharpen(self):
-        if ("BlurSharpen" in self.configuration):
+        if "BlurSharpen" in self.configuration:
             del self.configuration["BlurSharpen"]
             return self.reconfigure(True, "BlurSharpen")
         return True
 
     def setAmbientOcclusion(self, numsamples = 16, radius = 0.05, amount = 2.0, strength = 0.01, falloff = 0.000002):
-        fullrebuild = (("AmbientOcclusion" in self.configuration) == False)
+        fullrebuild = ("AmbientOcclusion" not in self.configuration)
 
-        if (not fullrebuild):
+        if not fullrebuild:
             fullrebuild = (numsamples != self.configuration["AmbientOcclusion"].numsamples)
 
         newconfig = FilterConfig()
@@ -570,7 +576,7 @@ class CommonFilters:
         return self.reconfigure(fullrebuild, "AmbientOcclusion")
 
     def delAmbientOcclusion(self):
-        if ("AmbientOcclusion" in self.configuration):
+        if "AmbientOcclusion" in self.configuration:
             del self.configuration["AmbientOcclusion"]
             return self.reconfigure(True, "AmbientOcclusion")
         return True
@@ -584,7 +590,7 @@ class CommonFilters:
         return True
 
     def delGammaAdjust(self):
-        if ("GammaAdjust" in self.configuration):
+        if "GammaAdjust" in self.configuration:
             old_gamma = self.configuration["GammaAdjust"]
             del self.configuration["GammaAdjust"]
             return self.reconfigure((old_gamma != 1.0), "GammaAdjust")
@@ -610,7 +616,7 @@ class CommonFilters:
 
     def delSrgbEncode(self):
         """ Reverses the effects of setSrgbEncode. """
-        if ("SrgbEncode" in self.configuration):
+        if "SrgbEncode" in self.configuration:
             old_enable = self.configuration["SrgbEncode"]
             del self.configuration["SrgbEncode"]
             return self.reconfigure(old_enable, "SrgbEncode")
@@ -632,7 +638,7 @@ class CommonFilters:
         return self.reconfigure(fullrebuild, "HighDynamicRange")
 
     def delHighDynamicRange(self):
-        if ("HighDynamicRange" in self.configuration):
+        if "HighDynamicRange" in self.configuration:
             del self.configuration["HighDynamicRange"]
             return self.reconfigure(True, "HighDynamicRange")
         return True
@@ -652,7 +658,7 @@ class CommonFilters:
         return True
 
     def delExposureAdjust(self):
-        if ("ExposureAdjust" in self.configuration):
+        if "ExposureAdjust" in self.configuration:
             del self.configuration["ExposureAdjust"]
             return self.reconfigure(True, "ExposureAdjust")
         return True

direct/src/filter/FilterManager.py

@@ -56,7 +56,7 @@ class FilterManager(DirectObject):
 
         if region is None:
             self.notify.error('Could not find appropriate DisplayRegion to filter')
-            return False
+            return
 
         # Instance Variables.
 
@@ -78,13 +78,13 @@ class FilterManager(DirectObject):
         self.accept("window-event", self.windowEvent)
 
 
-    def getClears(self,region):
+    def getClears(self, region):
         clears = []
         for i in range(GraphicsOutput.RTPCOUNT):
             clears.append((region.getClearActive(i), region.getClearValue(i)))
         return clears
 
-    def setClears(self,region,clears):
+    def setClears(self, region, clears):
         for i in range(GraphicsOutput.RTPCOUNT):
             (active, value) = clears[i]
             region.setClearActive(i, active)
@@ -94,7 +94,7 @@ class FilterManager(DirectObject):
         clears = []
         for i in range(GraphicsOutput.RTPCOUNT):
             (active, value) = clears0[i]
-            if (active == 0):
+            if not active:
                 (active, value) = clears1[i]
             region.setClearActive(i, active)
             region.setClearValue(i, value)
@@ -107,13 +107,14 @@ class FilterManager(DirectObject):
                 (self.region.getTop()    == 1.0))
 
     def getScaledSize(self, mul, div, align):
-
         """ Calculate the size of the desired window. Not public. """
 
         winx = self.forcex
         winy = self.forcey
-        if winx == 0: winx = self.win.getXSize()
-        if winy == 0: winy = self.win.getYSize()
+        if winx == 0:
+            winx = self.win.getXSize()
+        if winy == 0:
+            winy = self.win.getYSize()
 
         if div != 1:
             winx = ((winx+align-1) // align) * align
@@ -168,7 +169,7 @@ class FilterManager(DirectObject):
         scene.  It is assumed that the user will replace the shader
         on the quad with a more interesting filter. """
 
-        if (textures):
+        if textures:
             colortex = textures.get("color", None)
             depthtex = textures.get("depth", None)
             auxtex = textures.get("aux", None)
@@ -178,7 +179,7 @@ class FilterManager(DirectObject):
             auxtex0 = auxtex
             auxtex1 = None
 
-        if (colortex == None):
+        if colortex is None:
             colortex = Texture("filter-base-color")
             colortex.setWrapU(Texture.WMClamp)
             colortex.setWrapV(Texture.WMClamp)
@@ -193,7 +194,7 @@ class FilterManager(DirectObject):
         else:
             buffer = self.createBuffer("filter-base", winx, winy, texgroup)
 
-        if (buffer == None):
+        if buffer is None:
             return None
 
         cm = CardMaker("filter-base-quad")
@@ -208,7 +209,7 @@ class FilterManager(DirectObject):
         cs.setState(self.camstate)
         # Do we really need to turn on the Shader Generator?
         #cs.setShaderAuto()
-        if (auxbits):
+        if auxbits:
             cs.setAttrib(AuxBitplaneAttrib.make(auxbits))
         if clamping is False:
             # Disables clamping in the shader generator.
@@ -226,13 +227,13 @@ class FilterManager(DirectObject):
         self.region.setCamera(quadcam)
 
         self.setStackedClears(buffer, self.rclears, self.wclears)
-        if (auxtex0):
+        if auxtex0:
             buffer.setClearActive(GraphicsOutput.RTPAuxRgba0, 1)
             buffer.setClearValue(GraphicsOutput.RTPAuxRgba0, (0.5, 0.5, 1.0, 0.0))
-        if (auxtex1):
+        if auxtex1:
             buffer.setClearActive(GraphicsOutput.RTPAuxRgba1, 1)
         self.region.disableClears()
-        if (self.isFullscreen()):
+        if self.isFullscreen():
             self.win.disableClears()
 
         dr = buffer.makeDisplayRegion()
@@ -257,14 +258,14 @@ class FilterManager(DirectObject):
 
         winx, winy = self.getScaledSize(mul, div, align)
 
-        depthbits = bool(depthtex != None)
+        depthbits = int(depthtex is not None)
 
         if fbprops is not None:
             buffer = self.createBuffer(name, winx, winy, texgroup, depthbits, fbprops=fbprops)
         else:
             buffer = self.createBuffer(name, winx, winy, texgroup, depthbits)
 
-        if (buffer == None):
+        if buffer is None:
             return None
 
         cm = CardMaker("filter-stage-quad")
@@ -313,23 +314,23 @@ class FilterManager(DirectObject):
             props.addProperties(fbprops)
 
         depthtex, colortex, auxtex0, auxtex1 = texgroup
-        if (auxtex0 != None):
+        if auxtex0 is not None:
             props.setAuxRgba(1)
-        if (auxtex1 != None):
+        if auxtex1 is not None:
             props.setAuxRgba(2)
         buffer=base.graphicsEngine.makeOutput(
             self.win.getPipe(), name, -1,
             props, winprops, GraphicsPipe.BFRefuseWindow | GraphicsPipe.BFResizeable,
             self.win.getGsg(), self.win)
-        if (buffer == None):
+        if buffer is None:
             return buffer
-        if (depthtex):
+        if depthtex:
             buffer.addRenderTexture(depthtex, GraphicsOutput.RTMBindOrCopy, GraphicsOutput.RTPDepth)
-        if (colortex):
+        if colortex:
             buffer.addRenderTexture(colortex, GraphicsOutput.RTMBindOrCopy, GraphicsOutput.RTPColor)
-        if (auxtex0):
+        if auxtex0:
             buffer.addRenderTexture(auxtex0, GraphicsOutput.RTMBindOrCopy, GraphicsOutput.RTPAuxRgba0)
-        if (auxtex1):
+        if auxtex1:
             buffer.addRenderTexture(auxtex1, GraphicsOutput.RTMBindOrCopy, GraphicsOutput.RTPAuxRgba1)
         buffer.setSort(self.nextsort)
         buffer.disableClears()

direct/src/fsm/ClassicFSM.py

@@ -9,6 +9,7 @@ __all__ = ['ClassicFSM']
 
 from direct.directnotify.DirectNotifyGlobal import directNotify
 from direct.showbase.DirectObject import DirectObject
+from direct.showbase.MessengerGlobal import messenger
 import weakref
 
 if __debug__:
@@ -83,7 +84,7 @@ class ClassicFSM(DirectObject):
         self.__internalStateInFlux = 0
         if __debug__:
             global _debugFsms
-            _debugFsms[name]=weakref.ref(self)
+            _debugFsms[name] = weakref.ref(self)
 
     # I know this isn't how __repr__ is supposed to be used, but it
     # is nice and convenient.
@@ -107,7 +108,7 @@ class ClassicFSM(DirectObject):
         if self.__currentState == self.__initialState:
             return
 
-        assert self.__currentState == None
+        assert self.__currentState is None
         self.__internalStateInFlux = 1
         self.__enter(self.__initialState, argList)
         assert not self.__internalStateInFlux
@@ -115,7 +116,7 @@ class ClassicFSM(DirectObject):
     # setters and getters
 
     def getName(self):
-        return(self.__name)
+        return self.__name
 
     def setName(self, name):
         self.__name = name
@@ -134,13 +135,13 @@ class ClassicFSM(DirectObject):
         self.__states[state.getName()] = state
 
     def getInitialState(self):
-        return(self.__initialState)
+        return self.__initialState
 
     def setInitialState(self, initialStateName):
         self.__initialState = self.getStateNamed(initialStateName)
 
     def getFinalState(self):
-        return(self.__finalState)
+        return self.__finalState
 
     def setFinalState(self, finalStateName):
         self.__finalState = self.getStateNamed(finalStateName)
@@ -149,7 +150,7 @@ class ClassicFSM(DirectObject):
         self.request(self.getFinalState().getName())
 
     def getCurrentState(self):
-        return(self.__currentState)
+        return self.__currentState
 
 
     # lookup funcs
@@ -198,7 +199,7 @@ class ClassicFSM(DirectObject):
         """
         assert self.__internalStateInFlux
         stateName = aState.getName()
-        if (stateName in self.__states):
+        if stateName in self.__states:
             assert ClassicFSM.notify.debug("[%s]: entering %s" % (self.__name, stateName))
             self.__currentState = aState
             # Only send the state change event if we are inspecting it
@@ -257,7 +258,7 @@ class ClassicFSM(DirectObject):
             aState = aStateName
             aStateName = aState.getName()
 
-        if aState == None:
+        if aState is None:
             ClassicFSM.notify.error("[%s]: request: %s, no such state" %
                              (self.__name, aStateName))
 
@@ -282,8 +283,8 @@ class ClassicFSM(DirectObject):
                               exitArgList)
             return 1
         # We can implicitly always transition to our final state.
-        elif (aStateName == self.__finalState.getName()):
-            if (self.__currentState == self.__finalState):
+        elif aStateName == self.__finalState.getName():
+            if self.__currentState == self.__finalState:
                 # Do not do the transition if we are already in the
                 # final state
                 assert ClassicFSM.notify.debug(
@@ -300,7 +301,7 @@ class ClassicFSM(DirectObject):
                                   exitArgList)
                 return 1
         # are we already in this state?
-        elif (aStateName == self.__currentState.getName()):
+        elif aStateName == self.__currentState.getName():
             assert ClassicFSM.notify.debug(
                 "[%s]: already in state %s and no self transition" %
                 (self.__name, aStateName))
@@ -348,7 +349,7 @@ class ClassicFSM(DirectObject):
             aState = aStateName
             aStateName = aState.getName()
 
-        if aState == None:
+        if aState is None:
             ClassicFSM.notify.error("[%s]: request: %s, no such state" %
                                 (self.__name, aStateName))
 
@@ -375,11 +376,3 @@ class ClassicFSM(DirectObject):
 
     def isInternalStateInFlux(self):
         return self.__internalStateInFlux
-
-
-
-
-
-
-
-

direct/src/fsm/FSM.py

@@ -9,8 +9,9 @@ __all__ = ['FSMException', 'FSM']
 
 
 from direct.showbase.DirectObject import DirectObject
-from direct.directnotify import DirectNotifyGlobal
+from direct.showbase.MessengerGlobal import messenger
 from direct.showbase import PythonUtil
+from direct.directnotify import DirectNotifyGlobal
 from direct.stdpy.threading import RLock
 
 
@@ -239,7 +240,7 @@ class FSM(DirectObject):
     def isInTransition(self):
         self.fsmLock.acquire()
         try:
-            return self.state == None
+            return self.state is None
         finally:
             self.fsmLock.release()
 
@@ -339,12 +340,10 @@ class FSM(DirectObject):
     def defaultEnter(self, *args):
         """ This is the default function that is called if there is no
         enterState() method for a particular state name. """
-        pass
 
     def defaultExit(self):
         """ This is the default function that is called if there is no
         exitState() method for a particular state name. """
-        pass
 
     def defaultFilter(self, request, args):
         """This is the function that is called if there is no
@@ -485,8 +484,6 @@ class FSM(DirectObject):
             if not self.__callFromToFunc(self.oldState, self.newState, *args):
                 self.__callExitFunc(self.oldState)
                 self.__callEnterFunc(self.newState, *args)
-                pass
-            pass
         except:
             # If we got an exception during the enter or exit methods,
             # go directly to state "InternalError" and raise up the
@@ -513,7 +510,7 @@ class FSM(DirectObject):
     def __callEnterFunc(self, name, *args):
         # Calls the appropriate enter function when transitioning into
         # a new state, if it exists.
-        assert self.state == None and self.newState == name
+        assert self.state is None and self.newState == name
 
         func = getattr(self, "enter" + name, None)
         if not func:
@@ -525,7 +522,7 @@ class FSM(DirectObject):
     def __callFromToFunc(self, oldState, newState, *args):
         # Calls the appropriate fromTo function when transitioning into
         # a new state, if it exists.
-        assert self.state == None and self.oldState == oldState and self.newState == newState
+        assert self.state is None and self.oldState == oldState and self.newState == newState
 
         func = getattr(self, "from%sTo%s" % (oldState,newState), None)
         if func:
@@ -536,7 +533,7 @@ class FSM(DirectObject):
     def __callExitFunc(self, name):
         # Calls the appropriate exit function when leaving a
         # state, if it exists.
-        assert self.state == None and self.oldState == name
+        assert self.state is None and self.oldState == name
 
         func = getattr(self, "exit" + name, None)
         if not func:

direct/src/fsm/FourState.py

@@ -212,4 +212,3 @@ class FourState:
             """for debugging"""
             return self.notify.debug("%d (%d) %s"%(
                     id(self), self.stateIndex==4, message))
-

direct/src/fsm/FourStateAI.py

@@ -7,6 +7,7 @@ from direct.directnotify import DirectNotifyGlobal
 from . import ClassicFSM
 from . import State
 from direct.task import Task
+from direct.task.TaskManagerGlobal import taskMgr
 
 
 class FourStateAI:
@@ -268,4 +269,3 @@ class FourStateAI:
             """for debugging"""
             return self.notify.debug("%d (%d) %s"%(
                     id(self), self.stateIndex==4, message))
-

direct/src/fsm/SampleFSM.py

@@ -4,6 +4,7 @@ __all__ = ['ClassicStyle', 'NewStyle', 'ToonEyes']
 
 from . import FSM
 from direct.task import Task
+from direct.task.TaskManagerGlobal import taskMgr
 
 
 class ClassicStyle(FSM.FSM):

direct/src/fsm/State.py

@@ -21,21 +21,21 @@ class State(DirectObject):
         States = weakref.WeakKeyDictionary()
 
         @classmethod
-        def replaceMethod(self, oldFunction, newFunction):
+        def replaceMethod(cls, oldFunction, newFunction):
             import types
             count = 0
-            for state in self.States:
+            for state in cls.States:
                 # Note: you can only replace methods currently
                 enterFunc = state.getEnterFunc()
                 exitFunc = state.getExitFunc()
                 # print 'testing: ', state, enterFunc, exitFunc, oldFunction
-                if type(enterFunc) == types.MethodType:
+                if isinstance(enterFunc, types.MethodType):
                     if enterFunc.__func__ == oldFunction:
                         # print 'found: ', enterFunc, oldFunction
                         state.setEnterFunc(types.MethodType(newFunction,
                                                             enterFunc.__self__))
                         count += 1
-                if type(exitFunc) == types.MethodType:
+                if isinstance(exitFunc, types.MethodType):
                     if exitFunc.__func__ == oldFunction:
                         # print 'found: ', exitFunc, oldFunction
                         state.setExitFunc(types.MethodType(newFunction,
@@ -62,19 +62,19 @@ class State(DirectObject):
     # setters and getters
 
     def getName(self):
-        return(self.__name)
+        return self.__name
 
     def setName(self, stateName):
         self.__name = stateName
 
     def getEnterFunc(self):
-        return(self.__enterFunc)
+        return self.__enterFunc
 
     def setEnterFunc(self, stateEnterFunc):
         self.__enterFunc = stateEnterFunc
 
     def getExitFunc(self):
-        return(self.__exitFunc)
+        return self.__exitFunc
 
     def setExitFunc(self, stateExitFunc):
         self.__exitFunc = stateExitFunc
@@ -99,9 +99,9 @@ class State(DirectObject):
             return 1
 
         # if we're given a state object, get its name instead
-        if type(otherState) != type(''):
+        if not isinstance(otherState, str):
             otherState = otherState.getName()
-        return (otherState in self.__transitions)
+        return otherState in self.__transitions
 
     def setTransitions(self, stateTransitions):
         """setTransitions(self, string[])"""
@@ -119,7 +119,7 @@ class State(DirectObject):
     if __debug__:
         def getInspectorPos(self):
             """getInspectorPos(self)"""
-            return(self.__inspectorPos)
+            return self.__inspectorPos
 
         def setInspectorPos(self, inspectorPos):
             """setInspectorPos(self, [x, y])"""
@@ -131,7 +131,7 @@ class State(DirectObject):
         """
         Return the list of child FSMs
         """
-        return(self.__FSMList)
+        return self.__FSMList
 
     def setChildren(self, FSMList):
         """setChildren(self, ClassicFSM[])
@@ -196,7 +196,7 @@ class State(DirectObject):
         # state that is safe to enter
         self.__enterChildren(argList)
 
-        if (self.__enterFunc != None):
+        if self.__enterFunc is not None:
             self.__enterFunc(*argList)
 
     def exit(self, argList=[]):
@@ -207,7 +207,7 @@ class State(DirectObject):
         self.__exitChildren(argList)
 
         # call exit function if it exists
-        if (self.__exitFunc != None):
+        if self.__exitFunc is not None:
             self.__exitFunc(*argList)
 
     def __str__(self):

direct/src/fsm/StatePush.py

@@ -408,6 +408,7 @@ class AttrSetter(StateChangeNode):
         StateChangeNode._handleStateChange(self)
 
 if __debug__:
+    from direct.showbase.PythonUtil import ScratchPad
     o = ScratchPad()
     svar = StateVar(0)
     aset = AttrSetter(svar, o, 'testAttr')

direct/src/gui/DirectButton.py

@@ -126,5 +126,3 @@ class DirectButton(DirectFrame):
             self.guiItem.setSound(DGG.ENTER + self.guiId, rolloverSound)
         else:
             self.guiItem.clearSound(DGG.ENTER + self.guiId)
-
-

direct/src/gui/DirectCheckBox.py

@@ -56,4 +56,3 @@ class DirectCheckBox(DirectButton):
         if self['command']:
             # Pass any extra args to command
             self['command'](*[self['isChecked']] + self['extraArgs'])
-

direct/src/gui/DirectCheckButton.py

@@ -61,12 +61,12 @@ class DirectCheckButton(DirectButton):
         # Call option initialization functions
         self.initialiseoptions(DirectCheckButton)
         # After initialization with X giving it the correct size, put back space
-        if self['boxImage'] ==  None:
+        if self['boxImage'] is None:
             self.indicator['text'] = (' ', '*')
             self.indicator['text_pos'] = (0, -.2)
         else:
             self.indicator['text'] = (' ', ' ')
-        if self['boxImageColor'] != None and self['boxImage'] !=  None:
+        if self['boxImageColor'] is not None and self['boxImage'] is not None:
             self.colors = [VBase4(0, 0, 0, 0), self['boxImageColor']]
             self.component('indicator')['image_color'] = VBase4(0, 0, 0, 0)
 
@@ -84,7 +84,7 @@ class DirectCheckButton(DirectButton):
         else:
             # Use ready state to compute bounds
             frameType = self.frameStyle[0].getType()
-            if fClearFrame and (frameType != PGFrameStyle.TNone):
+            if fClearFrame and frameType != PGFrameStyle.TNone:
                 self.frameStyle[0].setType(PGFrameStyle.TNone)
                 self.guiItem.setFrameStyle(0, self.frameStyle[0])
                 # To force an update of the button
@@ -92,7 +92,7 @@ class DirectCheckButton(DirectButton):
             # Clear out frame before computing bounds
             self.getBounds()
             # Restore frame style if necessary
-            if (frameType != PGFrameStyle.TNone):
+            if frameType != PGFrameStyle.TNone:
                 self.frameStyle[0].setType(frameType)
                 self.guiItem.setFrameStyle(0, self.frameStyle[0])
 
@@ -170,7 +170,7 @@ class DirectCheckButton(DirectButton):
 
     def commandFunc(self, event):
         self['indicatorValue'] = 1 - self['indicatorValue']
-        if self.colors != None:
+        if self.colors is not None:
             self.component('indicator')['image_color'] = self.colors[self['indicatorValue']]
 
         if self['command']:
@@ -179,12 +179,5 @@ class DirectCheckButton(DirectButton):
 
     def setIndicatorValue(self):
         self.component('indicator').guiItem.setState(self['indicatorValue'])
-        if self.colors != None:
+        if self.colors is not None:
             self.component('indicator')['image_color'] = self.colors[self['indicatorValue']]
-
-
-
-
-
-
-