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Author David Friedman
Recipients Arfrever, David Friedman, bsduni, eric.araujo, ezio.melotti, r.david.murray
Date 2020-07-18.19:22:57
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I know this is 6 years too late, but I had this problem a few minutes ago on Python2.7.  Googling didn't find me anything relevant except this bug entry.  However, I found the cause myself: I had a test file named (and an argparse.pyc) in the current directory (i.e. $PYTHONPATH) which was overriding the one in the main python library path. Once I renamed my and argparse.pyc to something else, python found the real argparse and that message (the same one you saw) disappeared.
Date User Action Args
2020-07-18 19:22:58David Friedmansetrecipients: + David Friedman, ezio.melotti, eric.araujo, Arfrever, r.david.murray, bsduni
2020-07-18 19:22:58David Friedmansetmessageid: <>
2020-07-18 19:22:58David Friedmanlinkissue20840 messages
2020-07-18 19:22:57David Friedmancreate