[Python-Dev] for loop with if filter (original) (raw)

martin at martinthomas.net martin at martinthomas.net
Fri Nov 16 17:11:25 CET 2007

I started thinking about itertools when I saw this then I realised
that your question was about changing the syntax to produce fewer
lines of code rather than writing more effiicient code.. seemed like a
case where you could use ifilter.

//Martin

are talking about cvhanging the syntax rQuoting Gustavo Carneiro
<gjcarneiro at gmail.com>:

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

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