Steven Bethard <[email protected]> added the comment:
For optional flags like --foo-bar, argparse does munge the "dest" to "foo_bar",
following optparse. For positional arguments, arpgarse doesn't munge things
this way, but if you want the argument named "foo-bar" in help messages and
"foo_bar" on the Namespace object, you just need to do something like:
add_argument('foo_bar', metavar='foo-bar', ...)
Perhaps the docs could make this clearer.
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<http://bugs.python.org/issue14149>
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