Is the object in the set a user-defined object of some sort (or say a tuple of a user defined object)? And if there is a user defined object does it override __hash__ / __eq__ and in particular is __hash__ stable over time?
Also can you see what _items._hashFunc and _items._eqFunc are (in particular what the method is)? From: users-boun...@lists.ironpython.com [mailto:users-boun...@lists.ironpython.com] On Behalf Of Glenn Jones Sent: Wednesday, October 14, 2009 8:49 AM To: users@lists.ironpython.com Subject: [IronPython] Trouble with 2.6 RC1 Hi guys, I have just run across a problem with sets and iteration. I haven't managed to make a repo that doesn't include most of our source, but a little investigation has shown that in SetIterator.Current, there is a test to see whether the current element is still in the enumerator (!_items.Contains(_enumerator.Current)). This is failing when I believe it shouldn't. I have thrown in some debugging code to compare the elements of _items against _enumerator.Current using == and that returns true for one of the elements when .Contains is returning False. This is a blocker for us at Resolver because a workaround would require quite a lot of work. Thanks Glenn
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