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Date: Mon, 13 Oct 2014 14:12:35 -0500
From: Tim Chase <python.list@tim.thechases.com>
To: Joel Goldstick <joel.goldstick@gmail.com>
Subject: Re: How to select every other line from a text file?
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Xref: csiph.com comp.lang.python:79066

On 2014-10-13 14:45, Joel Goldstick wrote:
> Not apropos to the OP, but what came up in my mind was to write a
> generator function that returns every other line.  This would
> separate the reading from the writing code.

You mean like

  offset = 0 # or 1 if you prefer
  for line in itertools.islice(source_iter, offset, None, 2):
    do_something(line)

?

-tkc