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Re: how to avoid checking the same condition repeatedly ?

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On 2013-10-28, Nobody <nobody@nowhere.com> wrote:
> On Mon, 28 Oct 2013 09:50:19 +0000, Wolfgang Maier wrote:
>> So my question is: is there an agreed-upon generally best way
>> of dealing with this?
>
> Yes. Just leave the test inside the loop.
>
> If you're sufficiently concerned about performance that you're
> willing to trade clarity for it, you shouldn't be using Python
> in the first place.

When you detect a code small, as Wolfgang did, e.g., "I'm
repeating the same exact test condition in several places," you
should not simply ignore it, even in Python.

-- 
Neil Cerutti

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how to avoid checking the same condition repeatedly ? Wolfgang Maier <wolfgang.maier@biologie.uni-freiburg.de> - 2013-10-28 09:50 +0000
  Re: how to avoid checking the same condition repeatedly ? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-28 11:14 +0000
    Re: how to avoid checking the same condition repeatedly ? Chris Angelico <rosuav@gmail.com> - 2013-10-28 22:18 +1100
      Re: how to avoid checking the same condition repeatedly ? Steven D'Aprano <steve@pearwood.info> - 2013-10-29 04:51 +0000
  Re: how to avoid checking the same condition repeatedly ? Piet van Oostrum <piet@vanoostrum.org> - 2013-10-28 14:31 -0400
  Re: how to avoid checking the same condition repeatedly ? Nobody <nobody@nowhere.com> - 2013-10-28 19:37 +0000
    Re: how to avoid checking the same condition repeatedly ? Neil Cerutti <neilc@norwich.edu> - 2013-10-29 13:44 +0000
      Re: how to avoid checking the same condition repeatedly ? rusi <rustompmody@gmail.com> - 2013-10-29 09:13 -0700
  Re: how to avoid checking the same condition repeatedly ? Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-28 23:14 -0700
    Re: how to avoid checking the same condition repeatedly ? Chris Angelico <rosuav@gmail.com> - 2013-10-29 17:39 +1100
  Re: how to avoid checking the same condition repeatedly ? Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-28 23:53 -0700
    Re: how to avoid checking the same condition repeatedly ? Chris Angelico <rosuav@gmail.com> - 2013-10-29 18:09 +1100
  Re: how to avoid checking the same condition repeatedly ? Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-29 16:55 -0700
  Re: how to avoid checking the same condition repeatedly ? alex23 <wuwei23@gmail.com> - 2013-10-30 11:38 +1000
  Re: how to avoid checking the same condition repeatedly ? Mariano Anaya <marianoanaya@gmail.com> - 2013-10-30 06:34 -0700

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