argparse module How to add option without any argument?
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Track title: CC M Beethoven - Piano Sonata No 3 in C 3
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Chapters
00:00 Question
01:17 Accepted answer (Score 324)
01:35 Answer 2 (Score 130)
01:58 Thank you
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Full question
https://stackoverflow.com/questions/5262...
Accepted answer links:
[@Felix Kling suggested]: https://stackoverflow.com/questions/5262...
Answer 2 links:
[action]: http://docs.python.org/dev/library/argpa...
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Content licensed under CC BY-SA
https://meta.stackexchange.com/help/lice...
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Tags
#python #argparse
#avk47
--
Track title: CC M Beethoven - Piano Sonata No 3 in C 3
--
Chapters
00:00 Question
01:17 Accepted answer (Score 324)
01:35 Answer 2 (Score 130)
01:58 Thank you
--
Full question
https://stackoverflow.com/questions/5262...
Accepted answer links:
[@Felix Kling suggested]: https://stackoverflow.com/questions/5262...
Answer 2 links:
[action]: http://docs.python.org/dev/library/argpa...
--
Content licensed under CC BY-SA
https://meta.stackexchange.com/help/lice...
--
Tags
#python #argparse
#avk47
ACCEPTED ANSWER
Score 339
As @Felix Kling suggested, to create an option that needs no value, use action='store_true', 'store_false' or 'store_const'. See documentation.
>>> from argparse import ArgumentParser
>>> p = ArgumentParser()
>>> _ = p.add_argument('-f', '--foo', action='store_true')
>>> args = p.parse_args()
>>> args.foo
False
>>> args = p.parse_args(['-f'])
>>> args.foo
True
ANSWER 2
Score 138
To create an option that needs no value, set the action [docs] of it to 'store_const', 'store_true' or 'store_false'.
Example:
parser.add_argument('-s', '--simulate', action='store_true')