Ask HN: Good Python codebases to read?

Re:Ask HN: Good Python codebases to read? by aaronchall on Thursday July 16, 2015 @03:47PM (#9899475)

Nice lambda. You've defended yourself admirably. Did you know there's an `operator.itemgetter` function that does that?

So that's:

  >>> sorted(((x, -(x**2)) for x in xrange(10) if 0 == x % 2), key=operator.itemgetter(1))
  [(8, -64), (6, -36), (4, -16), (2, -4), (0, 0)]

Do note that good code and code golf are two different things! :D

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Re:Ask HN: Good Python codebases to read? by merlincorey on Thursday July 16, 2015 @04:09PM (#9899599)

> Nice lambda. You've defended yourself admirably.

Thanks!

> Did you know there's an `operator.itemgetter` function that does that?

Yes, I'm quite aware! Are you aware the "useless" functional solution with lambda is two characters shorter?

  >>> len('lambda item: item[1]')
  20
  >>> len('operator.itemgetter(1)')
  22

Cause you're apparently not aware that I was demonstrating a use-case for lambdas as one-off functions that are passed to other functions (which is an abstract concept from the particular function used), and you didn't demonstrate how list comprehensions or generators make them not-needed. Of course, that's because it was a leading question and the answer is that the concepts are orthogonal so it cannot be demonstrated.

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Re:Ask HN: Good Python codebases to read? by ectoplasm on Thursday July 16, 2015 @04:34PM (#9899738)

I bet you two would be good friends IRL.

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Re:Ask HN: Good Python codebases to read? by aaronchall on Saturday July 18, 2015 @07:55PM (#9909473)

I'm sure we would. I'll buy the first drink. :D

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