From: Raymond Hettinger [mailto:raymond.hettinger@verizon.net]

class Pane(object): __slots__ = ('background', 'foreground', 'size', 'content') background = 'black' foreground = 'white' size = (80, 25)

p = Pane() p.background = 'light blue' # override the default assert p.foreground == 'white' # other defaults still in-place

Wow - I hadn't realised that. I would prefer to think of this is a useful feature rather than a wart. Finally we can have true constants! class Pane (module): # Or whatever - you get the idea ;) __slots__ = ('background', 'foreground', 'size', 'content', '__name__', '__file__') __name__ = globals()['__name__'] __file__ = globals()['__file__'] background = 'black' foreground = 'white' size = (80, 25) import sys sys.modules[__name__] = Pane() OK - so you could get around it by getting the class of the "module" and then modifying that ... but it's the best yet. It even tells you that the attribute is read-only! Tim Delaney