[Python-Dev] for loop with if filter

[Gustavo Carneiro]

I am finding myself often doing for loops over a subset of a list, like:

        for r in results:
            if r.numNodes != numNodes:
                continue
            # do something with r

It would be nice if the plain for loop was as flexible as list
comprehensions and allowed an optional if clause, like this:

        for r in results if r.numNodes == numNodes:
            # do something with r

Has this idea come up before?  Does anyone else like this idea?

-- 
Gustavo J. A. M. Carneiro
INESC Porto, Telecommunications and Multimedia Unit
"The universe is always one step beyond logic." -- Frank Herbert
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.python.org/pipermail/python-dev/attachments/20071116/06f859b6/attachment.htm