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Re: Clever hack or code abomination?

Followups directed to: gmane.comp.python.general

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Arnaud Delobelle wrote:

> On 1 December 2011 03:15, Roy Smith <roy@panix.com> wrote:
>> I need to try a bunch of names in sequence until I find one that works
>> (definition of "works" is unimportant).  The algorithm is:
>>
>> 1) Given a base name, "foo", first see if just plain "foo" works.
>>
>> 2) If not, try "foo-1", "foo-2", and so on
>>
>> 3) If you reach "foo-20", give up.
>>
>> What would you say if you saw this:
>>
>> for suffix in [''] + [str(i) for i in xrange(-1, -20, -1)]:
>>
> 
> It's a little obfuscated ;) I would go for the simple:
> 
> for i in xrange(21):
>     suffix = "-%s" % i if i else ""
>     ....
> 

obfuscated for obfuscated, you can merge the two ideas:

for suffix in ('-%s' % i if i else '' for i in xrange(21)):
    ...


-- 
By ZeD

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Clever hack or code abomination? Roy Smith <roy@panix.com> - 2011-11-30 22:15 -0500
  Re: Clever hack or code abomination? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-01 03:38 +0000
  Re: Clever hack or code abomination? Matt Joiner <anacrolix@gmail.com> - 2011-12-01 14:49 +1100
  Re: Clever hack or code abomination? Chris Angelico <rosuav@gmail.com> - 2011-12-01 19:21 +1100
    Re: Clever hack or code abomination? John Ladasky <ladasky@my-deja.com> - 2011-12-06 11:19 -0800
  Re: Clever hack or code abomination? Arnaud Delobelle <arnodel@gmail.com> - 2011-12-01 08:35 +0000
  Re: Clever hack or code abomination? Vito 'ZeD' De Tullio <zak.mc.kraken@libero.it> - 2011-12-01 21:35 +0100
  Re: Clever hack or code abomination? "Martin P. Hellwig" <martin.hellwig@gmail.com> - 2011-12-01 21:13 +0000
    Re: Clever hack or code abomination? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-02 00:15 +0000
      Re: Clever hack or code abomination? Chris Angelico <rosuav@gmail.com> - 2011-12-02 13:07 +1100
        Re: Clever hack or code abomination? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-02 05:34 +0000
          Re: Clever hack or code abomination? Chris Angelico <rosuav@gmail.com> - 2011-12-02 17:02 +1100
            Re: Clever hack or code abomination? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-02 08:54 +0000
              Re: Clever hack or code abomination? Chris Angelico <rosuav@gmail.com> - 2011-12-02 20:16 +1100
  Re: Clever hack or code abomination? Terry Reedy <tjreedy@udel.edu> - 2011-12-01 21:49 -0500
  Re: Clever hack or code abomination? Matt Joiner <anacrolix@gmail.com> - 2011-12-02 16:11 +1100
  Re: Clever hack or code abomination? Chris Hulan <chris.hulan@gmail.com> - 2011-12-02 09:20 -0800

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