On Tue, 12 Jul 2005 10:12:33 +1000, John Machin <[EMAIL PROTECTED]> wrote:
>Bengt Richter wrote:
>> E.g., so we could write
>>
>> for x in seq if x is not None:
>
>Chundrous; looks like that p**l language ...
^^^^^^^^^--piqued my interest, where'd that come from? ;-)
>
>> print repr(x), "isn't None ;-)"
>>
>> instead of
>>
>> for x in (x for x in seq if x is not None):
>
>Byzantine ...
Perhaps not if you wanted to enumerate the selected elements, as in
for i, x in enumerate(x for x in seq if x is not None):
>
>> print repr(x), "isn't None ;-)"
>>
>> just a thought.
>>
>
>What's wrong with the following?
>
>for x in seq:
> if x is not None:
> print repr(x), "isn't None ;-)"
Nothing. Just noting that there's (at least) two kinds of for --
the plain old one, and the ones inside list comprehensions and generator
expressions, and it struck me that not allowing the full listcomp/genexp
syntax in the ordinary for context was a seemingly unnecessary restriction.
Regards,
Bengt Richter
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