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Re: use a loop to create lists

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* On 11/04/2013 16:11, Franz Kelnreiter wrote:
> On Thu, Apr 11, 2013 at 2:57 PM, Thomas Goebel <
> Thomas.Goebel@ohm-hochschule.de> wrote:
> 
>> ...
>> Which is the same as:
>> f = {'list_' + str(n):[m for m in range(3)] for n in range(3)}
>>
> [...]
> But didnt you miss square brackets:
> 
> f = {'list_' + str(n):[[m for m in range(3)] for n in range(3)]}

If i try your code i get a dict with key 'list_2' which value is a
list of three lists.

Maybe this occurs because we're using different python versions?! I
never used python<2.7!

Have you tried this one

d2 = dict(('list_' + str(i), list(range(3))) for i in range(3))

with Chris' simplification:

* On 11/04/2013 15:22, Chris Angelico wrote:
> On Thu, Apr 11, 2013 at 10:57 PM, Thomas Goebel wrote:
>> [a for a in range(3)]
>>
>> will return a list
>> [0, 1, 2]
>
> Simplification possible: That's the same as:
>
> list(range(3))
>
>> f = {'list_' + str(n):[m for m in range(3)] for n in range(3)}
>
> Meaning that this can be simplified too:
>
> f = {'list_' + str(n):list(range(3)) for n in range(3)}

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Thread

use a loop to create lists martaamunar@gmail.com - 2013-04-10 01:40 -0700
  Re: use a loop to create lists Chris Angelico <rosuav@gmail.com> - 2013-04-10 18:52 +1000
  Re: use a loop to create lists Dave Angel <davea@davea.name> - 2013-04-10 08:36 -0400
  Re: use a loop to create lists rusi <rustompmody@gmail.com> - 2013-04-10 08:31 -0700
  Re: use a loop to create lists Thomas Goebel <Thomas.Goebel@ohm-hochschule.de> - 2013-04-10 15:55 +0200
  Fwd: use a loop to create lists Franz Kelnreiter <kelnreiter@gmail.com> - 2013-04-11 14:11 +0200
  Re: use a loop to create lists Thomas Goebel <Thomas.Goebel@ohm-hochschule.de> - 2013-04-11 14:57 +0200
  Re: use a loop to create lists Chris Angelico <rosuav@gmail.com> - 2013-04-11 23:22 +1000
  Re: Fwd: use a loop to create lists Thomas Goebel <Thomas.Goebel@ohm-hochschule.de> - 2013-04-11 15:43 +0200
  Re: use a loop to create lists Franz Kelnreiter <kelnreiter@gmail.com> - 2013-04-11 16:11 +0200
  Re: use a loop to create lists Thomas Goebel <Thomas.Goebel@ohm-hochschule.de> - 2013-04-11 16:33 +0200
  Re: Fwd: use a loop to create lists Franz Kelnreiter <kelnreiter@gmail.com> - 2013-04-11 16:33 +0200
  Re: use a loop to create lists Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-04-11 18:17 -0400

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