Merge pull request #39066 from Xrayez/is-module-yes

Do not rely on the existence of `config.py` while detecting modules

methods.py

@@ -155,7 +155,7 @@ def detect_modules(at_path):
 
 
 def is_module(path):
-    return os.path.isdir(path) and os.path.exists(path + "/config.py")
+    return os.path.isdir(path) and os.path.exists(os.path.join(path, "SCsub"))
 
 
 def write_modules(module_list):