On Thursday 08 January 2009 21:03:42 Michael Bayer wrote: > On Jan 8, 2009, at 12:52 PM, a...@svilendobrev.com wrote: > > instead of None, better do some empty method raising some error, > > because in the current way the error comes up in not at all > > obvious fashion, takes quite some head-scratching to find-out - > > there's no mentioning of anything set() related there. > > __hash__ = None means no hash is defined. Its in the Python docs. okay, have fun with TypeError: 'NoneType' object is not callable
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