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From: Ben Finney <ben+python@benfinney.id.au>
Subject: Re: semicolon at end of python's statements
Date: Fri, 30 Aug 2013 08:17:51 +1000
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Xref: csiph.com comp.lang.python:53261

Fábio Santos <fabiosantosart@gmail.com> writes:

> It is a shame that this is not possible in python. for..if exists in
> comprehensions and not in regular loops but that would be nice
> sometimes.

So you use it in a generator expression, and iterate over the generator:

    for foo in (spam for spam in sequence if predicate(spam)):
        process(spam)

That way, there's no need for new syntax.

-- 
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Ben Finney