New submission from Julien Castets:
argparse.add_argument replaces dashes with underscores. If an argument contains
another non alphanum character, accessing to it will result to a syntax error.
#! /usr/bin/env python
import argparse
if __name__ == '__main__':
argParser =
R. David Murray added the comment:
It would probably be better to have the namespace object support subscripting
in order to satisfy this use case. You can use getattr to do it now. (Note
that the namespace object should probably use a real dict and a __getattr__
method, since I don't think
Steven Bethard added the comment:
If you need to get things that aren't valid Python identifiers, use vars() to
get the dictionary:
http://docs.python.org/dev/library/argparse.html#the-namespace-object
Changing all non-alphanumeric characters to underscores would be a backwards
incompatible
R. David Murray added the comment:
Oh, it wasn't CPython that that comment was directed at. But I think you are
right: because CPython supports it, I think other implementations will as well,
whatever the language spec says or doesn't say (I didn't double check, I'm
going on a fuzzy memory
Steven Bethard added the comment:
I haven't been following python-dev recently, but the only discussion I
remember was for non-strings in __dict__, not non-identifiers.
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Python tracker rep...@bugs.python.org
http://bugs.python.org/issue15929
