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Groups > comp.lang.python > #99946

Re: filter a list of strings

From <c.buhtz@posteo.jp>
Newsgroups comp.lang.python
Subject Re: filter a list of strings
Date 2015-12-03 10:27 +0100
Message-ID <mailman.165.1449134847.14615.python-list@python.org> (permalink)
References <mailman.155.1449122975.14615.python-list@python.org> <lf51tb459f2.fsf@ling.helsinki.fi>

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Thank you for your suggestion. This will help a lot.

On 2015-12-03 08:32 Jussi Piitulainen <harvesting@is.invalid> wrote:
> list = [ item for item in list
>          if ( 'Banana' not in item and
>               'Car' not in item ) ]

I often saw constructions like this
  x for x in y if ...
But I don't understand that combination of the Python keywords (for,
in, if) I allready know. It is to complex to imagine what there really
happen.

I understand this
  for x in y:
    if ...

But what is about the 'x' in front of all that?
-- 
GnuPGP-Key ID 0751A8EC

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Thread

filter a list of strings <c.buhtz@posteo.jp> - 2015-12-03 02:15 +0100
  Re: filter a list of strings Jussi Piitulainen <harvesting@is.invalid> - 2015-12-03 08:32 +0200
    Re: filter a list of strings <c.buhtz@posteo.jp> - 2015-12-03 10:27 +0100
      Re: filter a list of strings Jussi Piitulainen <harvesting@is.invalid> - 2015-12-03 13:53 +0200
      Re: filter a list of strings Peter Pearson <pkpearson@nowhere.invalid> - 2015-12-05 19:42 +0000
    Re: filter a list of strings Chris Angelico <rosuav@gmail.com> - 2015-12-03 20:40 +1100
    Re: filter a list of strings Wolfgang Maier <wolfgang.maier@biologie.uni-freiburg.de> - 2015-12-03 10:46 +0100
    Re: filter a list of strings Laura Creighton <lac@openend.se> - 2015-12-03 10:53 +0100
    Re: filter a list of strings jmp <jeanmichel@sequans.com> - 2015-12-03 11:03 +0100
    Re: filter a list of strings Peter Otten <__peter__@web.de> - 2015-12-03 11:13 +0100
    Re: filter a list of strings Denis McMahon <denismfmcmahon@gmail.com> - 2015-12-03 14:16 +0000
      Re: filter a list of strings Jussi Piitulainen <harvesting@is.invalid> - 2015-12-03 17:02 +0200
  Re: filter a list of strings Grobu <snailcoder@retrosite.invalid> - 2015-12-03 13:17 +0100

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