[New-bugs-announce] [issue21681] version string printed on STDERR

[larkost]

New submission from larkost:

When getting the version of the Python interpreter with `python --version` the output is going to STDERR rather than STDOUT. This is non-standard behavior, and is surprising.

For example I was writing a dependency into a makefile, and this behavior caused me a good 5 minutes of debugging my script before I realized it was bad behavior on the command line.

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messages: 219896
nosy: larkost
priority: normal
severity: normal
status: open
title: version string printed on STDERR
type: behavior
versions: Python 2.7

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21681>
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