[New-bugs-announce] [issue28593] Inconsistent itertools' predicate behaviour

[Francisco Couzo]

New submission from Francisco Couzo:

As per Terry's recommendation https://mail.python.org/pipermail/python-dev/2016-November/146791.html

Currently some functions in itertools (dropwhile and takewhile), don't accept None as a predicate, but filterfalse and groupby do.

I'd like your input, and I'm interested in writing a patch.

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messages: 279960
nosy: franciscouzo, rhettinger
priority: normal
severity: normal
status: open
title: Inconsistent itertools' predicate behaviour
type: enhancement

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue28593>
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