Re: how to call a function for evry 10 secs

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From	Ian Kelly <ian.g.kelly@gmail.com>
Date	2011-06-30 11:42 -0600
Subject	Re: how to call a function for evry 10 secs
Newsgroups	comp.lang.python
Message-ID	<mailman.529.1309455805.1164.python-list@python.org> (permalink)

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On Thu, Jun 30, 2011 at 11:18 AM, MRAB <python@mrabarnett.plus.com> wrote:
>>        And that was a direct cut&paste from a command window; showing it
>> had slept for some 90 seconds before I killed it.
>>
> Looks like it hasn't changed even in WinXP, Python 3.2.

It gets cast to an unsigned long, so I expect sleep(-1) on Windows
would sleep for 2 ** 32 - 1000 ms, or about 49.7 days.

More interestingly, sleep(-0.001) should pass 2**32 - 1 to the
underlying Windows API, which would cause it to sleep forever (or
until interrupted).

> Is IOError what you'd expect, anyway?
>
> What should it do in Python 3.2? Exception or max(seconds, 0)?

sleep(0) has some special semantics on Windows.  Raising ValueError
(or IOError to match Linux) makes the most sense to me.

Cheers,
Ian

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Thread

how to call a function for evry 10 secs hisan <santosh.ssit@gmail.com> - 2011-06-29 10:39 -0700
  Re: how to call a function for evry 10 secs Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-06-30 03:42 +1000
  Re: how to call a function for evry 10 secs Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-06-29 22:06 -0700
    Re: how to call a function for evry 10 secs Laurent Claessens <moky.math@gmail.com> - 2011-06-30 09:05 +0200
    Re: how to call a function for evry 10 secs Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2011-06-30 10:37 +0200
      Re: how to call a function for evry 10 secs Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-06-30 09:42 -0700
        Re: how to call a function for evry 10 secs Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2011-06-30 21:04 +0200
          Re: how to call a function for evry 10 secs Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2011-06-30 23:29 -0700
          Re: how to call a function for evry 10 secs Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2011-07-01 08:50 +0200
      Re: how to call a function for evry 10 secs MRAB <python@mrabarnett.plus.com> - 2011-06-30 18:18 +0100
      Re: how to call a function for evry 10 secs Chris Angelico <rosuav@gmail.com> - 2011-07-01 03:36 +1000
      Re: how to call a function for evry 10 secs Ian Kelly <ian.g.kelly@gmail.com> - 2011-06-30 11:42 -0600

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