[issue17488] subprocess.Popen bufsize=0 parameter behaves differently in Python 3 than in 2

[Georg Brandl]

Georg Brandl added the comment:

OK. That was a more passionate statement :)  It would actually be nice to know about Windows, but the way you describe it is that the default behavior now is quite useless.  Does bufsize=0 have any sensible use on Python 3?

Anyway, you've convinced me -- can you fix this quickly so that it gets into the rc's?

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17488>
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