add "python" as reserved flag

main.ml

@@ -168,7 +168,7 @@ let htmlescape s =
 	s
 
 let reserved_flags = [
-	"cross";"flash8";"js";"neko";"flash";"php";"cpp";"cs";"java";
+	"cross";"flash8";"js";"neko";"flash";"php";"cpp";"cs";"java";"python"
 	"as3";"swc";"macro";"sys"
 	]