[docs] [issue11726] clarify that linecache only works on files that can be decoded successfully

[R. David Murray]

R. David Murray added the comment:

I think that that patch that Victor committed is incorrect, and that Thomas's patch is closer to correct.  People *do* use linecache with files other than python source files, and as far as I can see we are not going to stop supporting that.  Given the original docs the intent clearly was that the interface be general, not python-file-specific.

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status: closed -> open

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue11726>
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