Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.python > #99930

filter a list of strings

From <c.buhtz@posteo.jp>
Newsgroups comp.lang.python
Subject filter a list of strings
Date 2015-12-03 02:15 +0100
Message-ID <mailman.155.1449122975.14615.python-list@python.org> (permalink)

Show all headers | View raw


I would like to know how this could be done more elegant/pythonic.

I have a big list (over 10.000 items) with strings (each 100 to 300
chars long) and want to filter them.

list = .....

for item in list[:]:
  if 'Banana' in item:
     list.remove(item)
  if 'Car' in item:
     list.remove(item)

There are a lot of more conditions of course. This is just example code.
It doesn't look nice to me. To much redundance.

btw: Is it correct to iterate over a copy (list[:]) of that string list
and not the original one?
-- 
GnuPGP-Key ID 0751A8EC

Back to comp.lang.python | Previous | NextNext in thread | Find similar | Unroll thread


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

csiph-web