[Pyobjc-dev] __subclasses__

[Just v. R. <ju...@le...>]

It's amazing how well Ronald managed to integrate ObjC classes with
Python classes. Eg. cls.__subclasses__() Just Works:


  from Foundation import NSObject
  import AppKit  # just to load the AppKit classes

  def walk(cls, indent=""):
      subclasses = cls.__subclasses__()
      print indent + cls.__name__
      if subclasses:
          subclasses = [(sub.__name__, sub) for sub in subclasses]
          subclasses.sort()
          for name, sub in subclasses:
              walk(sub, indent + "    ")

  walk(NSObject)


I'd say that's pretty neat.

Just