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Re: About python while statement and pop()

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On 6/11/14 10:12 PM, hito koto wrote:
> i want to change this is code:
>
> def foo(x):
>      y = []
>      while x !=[]:
>          y.append(x.pop())
>      return y
>

Consider this generator (all kinds of permutations on the idea):

 >>> L1
[1, 2, 3, 4, 5, 6, 7]

 >>> def poplist(L):
	while True:
		yield L[::-1][:1:]
		L = L[::-1][1::][::-1]

		
 >>> pop = poplist(L1)

 >>> next(pop)
[7]
 >>> next(pop)
[6]
 >>> next(pop)
[5]
 >>> next(pop)
[4]
 >>> next(pop)
[3]
 >>> next(pop)
[2]
 >>> next(pop)
[1]
 >>> next(pop)
[]
 >>> next(pop)
[]

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About python while statement and pop() hito koto <hitokoto2014@gmail.com> - 2014-06-11 20:12 -0700
  Re:About python while statement and pop() Dave Angel <davea@davea.name> - 2014-06-11 22:34 -0500
  Re: About python while statement and pop() Vincent Vande Vyvre <vincent.vandevyvre@swing.be> - 2014-06-12 05:40 +0200
  Re: About python while statement and pop() Chris Angelico <rosuav@gmail.com> - 2014-06-12 13:58 +1000
    Re: About python while statement and pop() hito koto <hitokoto2014@gmail.com> - 2014-06-11 21:56 -0700
      Re: About python while statement and pop() Chris Angelico <rosuav@gmail.com> - 2014-06-12 15:08 +1000
      Re: About python while statement and pop() Steven D'Aprano <steve@pearwood.info> - 2014-06-12 05:43 +0000
        Re: About python while statement and pop() hito koto <hitokoto2014@gmail.com> - 2014-06-11 23:06 -0700
        Re: About python while statement and pop() hito koto <hitokoto2014@gmail.com> - 2014-06-12 00:13 -0700
        Re: About python while statement and pop() hito koto <hitokoto2014@gmail.com> - 2014-06-12 02:51 -0700
  Re: About python while statement and pop() Mark H Harris <harrismh777@gmail.com> - 2014-06-12 11:41 -0500
  Re: About python while statement and pop() Mark H Harris <harrismh777@gmail.com> - 2014-06-12 11:49 -0500
    Re: About python while statement and pop() Marko Rauhamaa <marko@pacujo.net> - 2014-06-12 19:55 +0300
      Re: About python while statement and pop() Mark H Harris <harrismh777@gmail.com> - 2014-06-12 12:07 -0500
    Re: About python while statement and pop() Chris Angelico <rosuav@gmail.com> - 2014-06-13 02:57 +1000
      Re: About python while statement and pop() Mark H Harris <harrismh777@gmail.com> - 2014-06-12 12:10 -0500
      Re: About python while statement and pop() Mark H Harris <harrismh777@gmail.com> - 2014-06-12 12:16 -0500
        Re: About python while statement and pop() wxjmfauth@gmail.com - 2014-06-12 11:37 -0700

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