Q: Subclassing dict and __cmp__

Miki Tebeka tebeka at cs.bgu.ac.il
Sun Oct 20 08:40:14 CEST 2002


Hello All,

Can anyone explain the following? (or point me to a link since my
googleing didn't help this time :)
--------------
Python 2.2.2 (#37, Oct 14 2002, 17:02:34) [MSC 32 bit (Intel)] on
win32
Type "copyright", "credits" or "license" for more information.
IDLE Fork 0.8 -- press F1 for help
>>> class H(dict):
	def __cmp__(self, other):
		'''Compare only x's'''
		if self['x'] == other['x']:
			return 0
		return 1

	
>>> h1 = H()
>>> h1
{}
>>> h2 = H()
>>> h2
{}
>>> h1 == h2
1
>>> 
------------------

Thanks.
Miki.



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