Jan Hutař <[email protected]> added the comment:
I think there is a same issue with "nargs='+'" - if you are aware of the,
please ignore me.
$ python3 --version
Python 3.7.5
With "choices=...", there seems to be a problem:
$ cat bbb.py
#!/usr/bin/env python3
import argparse
parser = argparse.ArgumentParser()
parser.add_argument('choices', nargs='*',
default=['a', 'b', 'c'],
choices=['a', 'b', 'c'])
args = parser.parse_args()
print(args)
$ ./bbb.py
usage: bbb.py [-h] [{a,b,c} [{a,b,c} ...]]
bbb.py: error: argument choices: invalid choice: ['a', 'b', 'c'] (choose from
'a', 'b', 'c')
$ ./bbb.py a c
Namespace(choices=['a', 'c'])
but without choices it works:
$ cat bbb.py
#!/usr/bin/env python3
import argparse
parser = argparse.ArgumentParser()
parser.add_argument('choices', nargs='*',
default=['a', 'b', 'c'])
args = parser.parse_args()
print(args)
$ ./bbb.py
Namespace(choices=['a', 'b', 'c'])
$ ./bbb.py a c
Namespace(choices=['a', 'c'])
As I said, if this is a known issue, I'm sorry for the noise.
----------
nosy: +Jan Hutař
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Python tracker <[email protected]>
<https://bugs.python.org/issue9625>
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