Author SilentGhost
Recipients SilentGhost, bethard, maker, r.david.murray
Date 2013-05-01.14:38:47
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If you run attached file w/ 3.2 and 3.3 (and later) versions, you'll notice that the new version of parser doesn't handle empty argument list:

$ python3.2
usage: [-h] {demo} ... error: too few arguments
$ python3.3

Everything is naturally failing in 3.3 version as the execution continues with the empty Namespace. I suspect this is due to the issue10424 that removed explicit check for positionals.
Date User Action Args
2013-05-01 14:38:47SilentGhostsetrecipients: + SilentGhost, bethard, r.david.murray, maker
2013-05-01 14:38:47SilentGhostsetmessageid: <>
2013-05-01 14:38:47SilentGhostlinkissue17889 messages
2013-05-01 14:38:47SilentGhostcreate