Re: filter in for loop

[Bruno Desthuilliers]

GHZ a écrit :
I would like to say something like:
for x in l if <expression>:
    <do something>

e.g.

for filename in os.listdir(DIR) if filename[-4:] == '.xml':
    <do something>


instead of having to say:

for filename in os.listdir(DIR):
    if filename[-4:] == '.xml':
        <do something>

or

for filename in (f for f in os.listdir(DIR) if f[-4] == '.xml'):
    <do something>


is there a shortcut I'm missing?

Not AFAIK, and I sometimes regret it - but the first alternative is good 
enough IMHO.

<ot>
I'd rather use os.path.splitext or str.endswith than subscript, but YMMV.
</ot>
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