The proposed solution impairs readability because there's a "surprise"
at the end. List comprehensions already open the language up to
readability abuse. Lets not add more.
To avoid the unwanted indentation, I would go with the already
suggested "if not x>0: continue" solution or else something like this:
positiveMembers = [x for x in [-2, -1, 0, 1, 2, 3, 4] if x>0]
for x in positiveMembers:
#do stuff
This has the advantage of being more self-documenting.
at wrote:
> I would like to spark the discussion about the following syntax problem I
> encounter.
>
> THE PROBLEM
>
> I have a lot times the following code:
>
> for x in [-2, -1, 0, 1, 2, 3, 4]:
> if x > 0:
> ... more code...
>
>
> It is not the addional line containing 'if x > 0:' that bothers me, but the
> additional indentation.
>
>
> THE SOLUTION
>
> More pythonic in view would be:
>
> for x in [-2, -1, 0, 1, 2, 3, 4] if x > 0:
> ... more code ...
>
>
> This blends basically
>
> [x for x in [-2, -1, 0, 1, 2, 3, 4] if x > 0]
>
> and
>
> x = y if x > 0 else 10
>
>
> EXTENDING
>
> And maybe a few usefull variants, like:
>
> for x in [-2, -1, 0, 1, 2, 3, 4] if x > 0 else -x:
> ... more code ...
>
> In this case x will be 2, 1, 0, 1, 2, 3, 4.
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