In article <[EMAIL PROTECTED]>,
Alex Martelli <[EMAIL PROTECTED]> wrote:
>Cameron Laird <[EMAIL PROTECTED]> wrote:
>
>> In article <[EMAIL PROTECTED]>,
>> Alex Martelli <[EMAIL PROTECTED]> wrote:
>> .
>> .
>> .
>> >My preference would be (with the original definition for
>> >words_of_the_file) to code
>> >
>> > numwords = sum(1 for w in words_of_the_file(thefilepath))
>> .
>> .
>> .
>> There are times when
>>
>> numwords = len(list(words_of_the_file(thefilepath))
>>
>> will be advantageous.
>
>Can you please give some examples? None comes readily to mind...
.
.
.
Maybe in an alternative universe where Python style emphasizes
functional expressions. This thread--or at least the follow-ups
to my rather frivolous observation--illustrate how distinct is
Python's direction.
If we could neglect memory impact, and procedural side-effects,
then, sure, I'd argue for my len(list(...)) formulation, on the
expressive grounds that it doesn't require the two "magic tokens"
'1' and 'w'. Does category theory have a term for formulas of
the sort that introduce a free variable only to ignore (discard,
...) it? There certainly are times when that's apt ...
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