paul j3 added the comment:
I think the `re.compile(r'^-.+$')` behavior could be better achieved by
inserting a simple test in `_parse_optional` before the
`_negative_number_matcher` test.
# behave more like optparse even if the argument looks like a option
if self.args_default_to_positional:
return None
In effect, if the string does not match an action string, say it is a
positional.
Making this patch to argparse.py is simple. How much to test it, and how
document it requires more thought.
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<http://bugs.python.org/issue9334>
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