Allowing specific values for an Argparse argument

--------------------------------------------------
Hire the world's top talent on demand or became one of them at Toptal: https://topt.al/25cXVn
--------------------------------------------------

Music by Eric Matyas
https://www.soundimage.org
Track title: Puzzling Curiosities

--

Chapters
00:00 Allowing Specific Values For An Argparse Argument
00:33 Accepted Answer Score 367
00:46 Thank you

--

Full question
https://stackoverflow.com/questions/1583...

--

Content licensed under CC BY-SA
https://meta.stackexchange.com/help/lice...

--

Tags
#python #argparse

#avk47

ACCEPTED ANSWER

Score 367

An argparse argument can be limited to specific values with the choices parameter:

...
parser.add_argument('--val',
                    choices=['a', 'b', 'c'],
                    help='Special testing value')

args = parser.parse_args(sys.argv[1:])

See the docs for more details.