hashability question

Gonçalo Rodrigues op73418 at mail.telepac.pt
Fri Oct 11 17:37:23 CEST 2002


Hi,

I have a class whose instances are timestamped at their moment of
creation. Their equality is naturally defined. I want to make them
hashable so the first obvious thing to do was

def __hash__(self):
    return hash(self.__time)

where the __time attribute holds the timestamp. I don't know the first
thing about good criteria for hashing functions so I am asking the more
knowledgeable people, is this a good hashing function, or does it suffer
from some terrible handicap?

Thanks in advance,
Gonçalo Rodrigues



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