[issue25840] Allow `False` to be passed to `filter`

[R. David Murray]

R. David Murray added the comment:

I don't think it is worth adding as a special case.  Itertools has it because of what itertools is (a mini-language for manipulating iterables), but the legacy filter function has no reason to grow additional special cases beyond None.  (It's not even clear why it has that one special case :)

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nosy: +r.david.murray
resolution:  -> rejected
stage:  -> resolved
status: open -> closed

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<http://bugs.python.org/issue25840>
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