[Python-ideas] Is this PEP-able? for X in ListY while conditionZ:

Ned Batchelder ned at nedbatchelder.com
Tue Jun 25 19:08:05 CEST 2013


You don't have to: use the break statement, that's what it's for. About 
people teaching students not to use it: the existence of bad teachers 
teaching silly ideas is not a reason to add syntax to Python.

--Ned.

On 6/25/2013 10:46 AM, jimjhb at aol.com wrote:
>
> You shouldn't have to invoke takewhile and a lambda just to break out 
> of for loop.
> >http://docs.python.org/2/library/itertools.html#itertools.takewhile
> >
> >for item in takewhile(lambda x: x < 5, range(10)):
> >    pass
>
> >>
> >> [People who avoid the 'break' by functionalizing an inner portion of the
> >> loop are just kidding themselves and making their own code worse, IMO.
> >> Takewhile from itertools also works, but that's clumsy and wordy as well.]
> >>
>
>
>
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