Comments on: Voting and the land of ice and snow. http://pieceofpy.com/2008/11/04/voting-and-the-land-of-ice-and-snow/ Another python blog with a love for agile methods. Mon, 17 May 2010 19:03:48 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Wayne http://pieceofpy.com/2008/11/04/voting-and-the-land-of-ice-and-snow/comment-page-1/#comment-38 Wayne Wed, 05 Nov 2008 16:19:09 +0000 http://pieceofpy.com/?p=206#comment-38 Never looked at the doc string for filter before. Didn't know you could pass in None, always thought it needed a comparison method. Thanks Zach. Also noted that filter will maintain type information for you. Pass in a string, get back a string. Pass in a tuple, get back a tuple. Very nice. Never looked at the doc string for filter before. Didn’t know you could pass in None, always thought it needed a comparison method. Thanks Zach.

Also noted that filter will maintain type information for you. Pass in a string, get back a string. Pass in a tuple, get back a tuple. Very nice.

]]> By: elblogg » Blog Archive » Should have guessed it http://pieceofpy.com/2008/11/04/voting-and-the-land-of-ice-and-snow/comment-page-1/#comment-37 elblogg » Blog Archive » Should have guessed it Wed, 05 Nov 2008 09:17:01 +0000 http://pieceofpy.com/?p=206#comment-37 [...] I had one of these realizations, while reading pieceofpy’s snippet of the [...] [...] I had one of these realizations, while reading pieceofpy’s snippet of the [...]

]]> By: Zachary Voase http://pieceofpy.com/2008/11/04/voting-and-the-land-of-ice-and-snow/comment-page-1/#comment-36 Zachary Voase Tue, 04 Nov 2008 23:58:28 +0000 http://pieceofpy.com/?p=206#comment-36 You know, all that list comprehension can just be done like this: bar = filter(None, foo) Filtering with None as the first argument just filters everything False out, which includes False, [], {}, 0, '' and None. You know, all that list comprehension can just be done like this:

bar = filter(None, foo)

Filtering with None as the first argument just filters everything False out, which includes False, [], {}, 0, ” and None.

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