Re: list comprehension question

From	Terry Reedy <tjreedy@udel.edu>
Subject	Re: list comprehension question
Date	2012-10-17 01:21 -0400
References	<CA+C4C6f=24oD4seHY_-h1F0GMvBTWNYbzTABXOdtKkAZtE9hdQ@mail.gmail.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.2321.1350451320.27098.python-list@python.org> (permalink)

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On 10/16/2012 9:54 PM, Kevin Anthony wrote:
> I've been teaching myself list comprehension, and i've run across
> something i'm not able to convert.

list comprehensions specifically abbreviate the code that they are 
(essentially) equivalent to.

res = []
for item in source:
   res.append(f(item))
res

<==>

[f(item) for item in source]

Matrix multiplication does not fit the pattern above. The reduction is 
number addition rather than list appending.

-- 
Terry Jan Reedy

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Re: list comprehension question Terry Reedy <tjreedy@udel.edu> - 2012-10-17 01:21 -0400
  Re: list comprehension question rusi <rustompmody@gmail.com> - 2012-10-17 00:13 -0700
    Re: list comprehension question Hans Mulder <hansmu@xs4all.nl> - 2012-10-17 10:34 +0200
    Re: list comprehension question Terry Reedy <tjreedy@udel.edu> - 2012-10-17 17:46 -0400

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