Amaury Forgeot d'Arc <amaur...@gmail.com> added the comment:

Testing on Debian with latest trunk:
- the proposed example code works very well (I get all data).
- I added "subprocess._has_poll = False", and some (sometimes all) data
is lost. It seems that select() will return stdin even if it is not
writable.

On Windows of course, communicate() uses a blocking write, and always fail.

The proposed patch ignore the errors when EPIPE is raised, and simply
stops writing.

----------
keywords: +needs review, patch
nosy: +amaury.forgeotdarc
stage:  -> patch review
Added file: http://bugs.python.org/file14493/broken_pipe.patch

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<http://bugs.python.org/issue6457>
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