py.user added the comment:
Tested on argdest.py:
#!/usr/bin/env python3
import argparse
parser = argparse.ArgumentParser()
parser.add_argument('x', action='append')
parser.add_argument('x', action='append_const', const=42, metavar='foo')
parser.add_argument('x', action='append_const', const=43, metavar='bar')
parser.add_argument('-x', action='append_const', const=44)
args = parser.parse_args()
print(args)
Run:
[guest@localhost debug]$ ./argdest.py -h
usage: argdest.py [-h] [-x] x
positional arguments:
x
foo
bar
optional arguments:
-h, --help show this help message and exit
-x
[guest@localhost debug]$ ./argdest.py -x 1 -x
Namespace(x=[44, '1', 42, 43, 44])
[guest@localhost debug]$
LGTM.
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<http://bugs.python.org/issue24419>
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