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Re: Iterate over text file, discarding some lines via context manager

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From Marko Rauhamaa <marko@pacujo.net>
Newsgroups comp.lang.python
Subject Re: Iterate over text file, discarding some lines via context manager
Date Fri, 28 Nov 2014 19:55:40 +0200
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Dave Angel <davea@davea.name>:

> Why would you prefer that over a generator function, as given earlier
> in the thread? See for example Ned's message. By using 'yield', you
> get Python to generate all the class boilerplate for you.

I think the OP can learn from the comparison. One question, many
lessons:

 * Here's how you write a generator.

 * Here's how you write a context manager class. You run into those
   quite often as well.

 * See how much more suitable a generator is in this case.

No need to shoot down those who only try to be helpful.


Marko

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Thread

Iterate over text file, discarding some lines via context manager "fetchinson ." <fetchinson@googlemail.com> - 2014-11-28 16:04 +0100
  Re: Iterate over text file, discarding some lines via context manager "ast" <nomail@invalid.com> - 2014-11-28 18:06 +0100
    Re: Iterate over text file, discarding some lines via context manager Dave Angel <davea@davea.name> - 2014-11-28 12:40 -0500
      Re: Iterate over text file, discarding some lines via context manager Marko Rauhamaa <marko@pacujo.net> - 2014-11-28 19:55 +0200
        Re: Iterate over text file, discarding some lines via context manager Chris Angelico <rosuav@gmail.com> - 2014-11-29 05:02 +1100
          Re: Iterate over text file, discarding some lines via context manager Marko Rauhamaa <marko@pacujo.net> - 2014-11-28 20:04 +0200

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