Re: Pythonic infinite for loop?

From	Roy Smith <roy@panix.com>
Newsgroups	comp.lang.python
Subject	Re: Pythonic infinite for loop?
Date	2011-04-15 09:13 -0400
Organization	PANIX Public Access Internet and UNIX, NYC
Message-ID	<roy-20FED5.09133115042011@news.panix.com> (permalink)
References	<mailman.377.1302833455.9059.python-list@python.org> <4da7ae8a$0$29986$c3e8da3$5496439d@news.astraweb.com> <BANLkTinV2NTUgGNDf+mM1R98vf2TmoQ5Rw@mail.gmail.com> <mailman.382.1302839905.9059.python-list@python.org> <4da83f8f$0$29986$c3e8da3$5496439d@news.astraweb.com>

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In article <4da83f8f$0$29986$c3e8da3$5496439d@news.astraweb.com>,
 Steven D'Aprano <steve+comp.lang.python@pearwood.info> wrote:

> for key in dct:
>     if key.startswith("Keyword"):
>         maxkey = max(maxkey, int(key[7:]))

I would make that a little easier to read, and less prone to "Did I 
count correctly?" bugs with something like:

prefix = "Keyword"
n = len(prefix)
for key in dct:
    name, value = key[:n], key[n:]
    if name == prefix:
        maxkey = max(maxkey, int(value))

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Pythonic infinite for loop? Chris Angelico <rosuav@gmail.com> - 2011-04-15 12:10 +1000
  Re: Pythonic infinite for loop? Nobody <nobody@nowhere.com> - 2011-04-15 03:33 +0100
  Re: Pythonic infinite for loop? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-04-15 02:33 +0000
    Re: Pythonic infinite for loop? Chris Angelico <rosuav@gmail.com> - 2011-04-15 13:58 +1000
      Re: Pythonic infinite for loop? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-04-15 12:52 +0000
        Re: Pythonic infinite for loop? Roy Smith <roy@panix.com> - 2011-04-15 09:13 -0400
        Re: Pythonic infinite for loop? Chris Angelico <rosuav@gmail.com> - 2011-04-16 01:35 +1000
          Re: Pythonic infinite for loop? Paul Rubin <no.email@nospam.invalid> - 2011-04-15 09:10 -0700
  Re: Pythonic infinite for loop? Paul Rubin <no.email@nospam.invalid> - 2011-04-15 00:24 -0700
    Re: Pythonic infinite for loop? Chris Angelico <rosuav@gmail.com> - 2011-04-15 17:35 +1000
      Re: Pythonic infinite for loop? Paul Rubin <no.email@nospam.invalid> - 2011-04-15 00:47 -0700
        Re: Pythonic infinite for loop? Peter Otten <__peter__@web.de> - 2011-04-15 10:11 +0200
  Re: Pythonic infinite for loop? Peter Otten <__peter__@web.de> - 2011-04-15 10:25 +0200
    Re: Pythonic infinite for loop? Chris Angelico <rosuav@gmail.com> - 2011-04-15 18:32 +1000
      Re: Pythonic infinite for loop? Peter Otten <__peter__@web.de> - 2011-04-15 11:32 +0200
      Re: Pythonic infinite for loop? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-04-15 12:48 +0000

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