[issue18920] argparse module version action

[Ezio Melotti]

Ezio Melotti added the comment:

Only on 3.4.
Python prints the version on stdout since 3.4 -- before it used stderr:
3.3$ ./python -V 2> /dev/null
3.3$ ./python -V > /dev/null
Python 3.3.2+

3.4$ ./python -V 2> /dev/null
Python 3.4.0a1+
3.4$ ./python -V > /dev/null

This might also explain why argparse uses stderr (other modules/scripts in the stdlib might do the same too).

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keywords: +easy
nosy: +ezio.melotti
stage:  -> needs patch

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18920>
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