JKPeck <[EMAIL PROTECTED]> wrote: > Thanks for the advice. Once assured that __hash__ etc was the right > route, I found that using hash() instead of object.__hash__() gave me > stable hash valules. (I am hashing strings that I know to be unique.) > > The "no luck" situation was that a set would accept the same object > multiple times, not recognizing that it was truly the same object.
Your problem may have been exactly that you were misunderstanding the nature and functionality of object.__hash__: >>> x='guess what' >>> id(x) 360720 >>> object.__hash__(x) 360720 As you see, what it does is return the id() of the object (that's how objects are hashed -- if they don't implement __eq__ or __cmp__, equality comparisons also go to the id()'s, so things work;-) -- unless their type/class overrides __hash__). Of course, by going directly to object.__hash__ you're explicitly *avoiding* the override, so... Alex -- http://mail.python.org/mailman/listinfo/python-list
