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

[Shane Green]

[x for x in l if x < 10 else break]?




On Jun 25, 2013, at 10:08 AM, Ned Batchelder <ned at nedbatchelder.com> wrote:

> 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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