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[Python-Dev] API for binary operations on Sets

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On Sep 29, 2010, at 11:29 PM, Terry Reedy wrote:
> I do not understand this. List.__add__ is currently *more* restrictive than set ops in that it will not even accept a 'frozenlist' (aka tuple).

Sorry, that should have been __iadd__().

>>> s = range(5)
>>> s += 'abc'
>>> s
[0, 1, 2, 3, 4, 'a', 'b', 'c']


Raymond

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