paul j3 added the comment:
A further complication on this. With the arguments I defined in the previous
post
p.parse_args('--foo test --baz 257'.split())
gives the mutually exclusive error message. `sys.argv` does the same.
p.parse_args(['--foo', 'test', '--baz', '257'])
does not give an error, because here the 'test' argument string is the same as
the default 'test'. So the m_x_g test thinks `--foo' is the default, and does
not count as an input.
Usually in testing an argparse setup I use the list and split arguments
interchangeably, but this shows they are not equivalent.
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue18943>
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