Re: Pythonic infinite for loop?

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Date	Sat, 16 Apr 2011 01:35:37 +1000
Subject	Re: Pythonic infinite for loop?
From	Chris Angelico <rosuav@gmail.com>
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Show key headers only | View raw

On Fri, Apr 15, 2011 at 10:52 PM, Steven D'Aprano
<steve+comp.lang.python@pearwood.info> wrote:
> On Fri, 15 Apr 2011 13:58:22 +1000, Chris Angelico wrote:
>
>> The dictionary is potentially a lot larger than this particular set of
>> values (it's a mapping of header:value for a row of a user-provided CSV
>> file). Does this make a difference to the best option? (Currently I'm
>> looking at "likely" figures of 60+ keys in the dictionary and 3-8
>> postage options to pick up, but both of those could increase
>> significantly before production.)
>
> SIXTY keys?
>
> When you get to sixty thousand keys, it might take a few seconds to
> process.

This whole code is inside a loop that we took, in smoke testing, to a
couple hundred million rows (I think), with the intention of having no
limit at all. So this might only look at 60-100 headers, but it will
be doing so in a tight loop.

ChrisA

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Thread

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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