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Re: How to select every other line from a text file?

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On Mon, 13 Oct 2014 10:38:48 -0700, Rff wrote:

> I have a text file. Now it is required to select every other line of
> that text to
>  generate a new text file. I have read through Python grammar, but still
>  lack the idea at the beginning of the task. Could you tell me some
>  methods to get this?

So this could be written as an algorithm something like:

1/ open the input file
2/ open the output file
3/ while there are lines to read from the input file
	3/1/ read a line from the input file
	3/2/ if I should output this line
		3/2/1/ write line to output file
4/ close the input file
5/ close the output file

Or in several other ways, and once you have an algorithm, you can start 
coding it (or implementing it in the programming language of your choice, 
whichever form of words best pleases your perfesser).

-- 
Denis McMahon, denismfmcmahon@gmail.com

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Thread

How to select every other line from a text file? Rff <rwang@avnera.com> - 2014-10-13 10:38 -0700
  Re: How to select every other line from a text file? Chris Angelico <rosuav@gmail.com> - 2014-10-14 04:46 +1100
    Re: How to select every other line from a text file? Grant Edwards <invalid@invalid.invalid> - 2014-10-13 19:04 +0000
  Re: How to select every other line from a text file? John Gordon <gordon@panix.com> - 2014-10-13 17:48 +0000
    Re: How to select every other line from a text file? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-10-13 19:02 +0100
    Re: How to select every other line from a text file? emile <emile@fenx.com> - 2014-10-13 11:11 -0700
    Re: How to select every other line from a text file? Joel Goldstick <joel.goldstick@gmail.com> - 2014-10-13 14:45 -0400
    Re: How to select every other line from a text file? Tim Chase <python.list@tim.thechases.com> - 2014-10-13 14:12 -0500
    Re: How to select every other line from a text file? emile <emile@fenx.com> - 2014-10-13 13:01 -0700
  Re: How to select every other line from a text file? Gary Herron <gary.herron@islandtraining.com> - 2014-10-13 10:50 -0700
  Re: How to select every other line from a text file? Tim Chase <python.list@tim.thechases.com> - 2014-10-13 12:55 -0500
  Re: How to select every other line from a text file? Denis McMahon <denismfmcmahon@gmail.com> - 2014-10-13 23:54 +0000
  Re: How to select every other line from a text file? Dan Stromberg <drsalists@gmail.com> - 2014-10-13 17:34 -0700

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