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Re: Best way to clean up list items?

From Jussi Piitulainen <jussi.piitulainen@helsinki.fi>
Newsgroups comp.lang.python
Subject Re: Best way to clean up list items?
Date 2016-05-02 19:57 +0300
Organization A noiseless patient Spider
Message-ID <lf5shy05rfg.fsf@ling.helsinki.fi> (permalink)
References <ng7v9d$ld8$1@dont-email.me>

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DFS writes:

> Have: list1 = ['\r\n   Item 1  ','  Item 2  ','\r\n  ']
> Want: list1 = ['Item 1','Item 2']
>
>
> I wrote this, which works fine, but maybe it can be tidier?
>
> 1. list2 = [t.replace("\r\n", "") for t in list1]   #remove \r\n
> 2. list3 = [t.strip(' ') for t in list2]            #trim whitespace
> 3. list1  = filter(None, list3)                     #remove empty items
>
> After each step:
>
> 1. list2 = ['   Item 1  ','  Item 2  ','  ']   #remove \r\n
> 2. list3 = ['Item 1','Item 2','']              #trim whitespace
> 3. list1 = ['Item 1','Item 2']                 #remove empty items

Try filter(None, (t.strip() for t in list1)). The default.

Funny-looking data you have.

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Thread

Best way to clean up list items? DFS <nospam@dfs.com> - 2016-05-02 12:33 -0400
  Re: Best way to clean up list items? Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-05-02 19:57 +0300
    Re: Best way to clean up list items? justin walters <walters.justin01@gmail.com> - 2016-05-02 10:10 -0700
    Re: Best way to clean up list items? DFS <nospam@dfs.com> - 2016-05-02 14:06 -0400
      Re: Best way to clean up list items? Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-05-02 21:27 +0300
        Re: Best way to clean up list items? DFS <nospam@dfs.com> - 2016-05-02 15:04 -0400
  Re: Best way to clean up list items? Stephen Hansen <me+python@ixokai.io> - 2016-05-02 10:25 -0700
    Re: Best way to clean up list items? DFS <nospam@dfs.com> - 2016-05-02 14:09 -0400
      Re: Best way to clean up list items? Stephen Hansen <me+python@ixokai.io> - 2016-05-02 11:23 -0700
  Re: Best way to clean up list items? Peter Otten <__peter__@web.de> - 2016-05-02 19:30 +0200

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