Why does argparse return None instead of  if an append action isn't used?
skip.montanaro at gmail.com
Fri Jan 9 15:57:03 CET 2015
> I noticed in use that if an option with the 'append' action isn't
> used, argparse assigns None to it rather than an empty list, &
> confirmed this interactively:
I don't use argparse (or optparse), being a getopt Luddite myself, but
can you set the default for an action in the add_argument call?
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