[Python-Dev] PEP 389: argparse - new command line parsing module (original) (raw)

Amaury Forgeot d'Arc amauryfa at gmail.com
Thu Oct 8 19:19:59 CEST 2009

2009/10/8 Paul Moore <p.f.moore at gmail.com>:

2009/10/7 Antoine Pitrou <solipsis at pitrou.net>:

Python 3 complains at startup and is a bit more explicit:

$ ./python -c '1' >&- Fatal Python error: PyInitialize: can't initialize sys standard streams OSError: [Errno 9] Bad file descriptor Abandon Of course, if it is stderr that you explicitly close, you lose all reporting: $ ./python -c '1' 2>&- Abandon Hmm, how does Python 3's pythonw work on Windows? (I don't have a Windows installation of Python 3 to hand at the moment)

When running pythonw, fileno(stdout) is negative, so sys.stdout is set to None, and print() silently returns. But the situation is not perfect, see http://bugs.python.org/issue6501 where Apache provides a stdout, but python cannot determine the encoding because there is no console.

-- Amaury Forgeot d'Arc

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