Multiple argument in python argparse

Question

I want my script to take multiple argument with same name.

python3 script.py --test test1 --test test2 --test test3 --config config_path

How can I achieve this. I have tried nargs from argparse till now.

# My Solution
import argparse

parser = argparse.ArgumentParser(description='Arg Parser',
            formatter_class=argparse.ArgumentDefaultsHelpFormatter,
            allow_abbrev=False)

parser.add_argument('--test', nargs='+', required=True, \
                help='Modules name for sanity check', choices=['test1 ', 'test2 ', 'test3 '])

parser.add_argument('--config')

arg = parser.parse_args()

But it's behavior is little different it takes it in the form

python3 script.py --test test1 test2 --config config_path

Any suggestion on how to get desired behavior

Thanks @hpaulj append works but I am seeing it like test=[['train1'], ['train2']]) is this expected behavior. — Pranjal Doshi
– Pranjal Doshi, Commented Nov 30, 2021 at 6:50
What's your nargs? 'append' makes a list, nargs can add another layer. — hpaulj
– hpaulj, Commented Nov 30, 2021 at 7:14
I see ya, I was using nargs='+' which was causing this behavior. Removing this helped me solve the issue. This was great help. — Pranjal Doshi
– Pranjal Doshi, Commented Nov 30, 2021 at 7:39

Pranjal Doshi · Accepted Answer · 2021-11-30 10:39:01Z

1

This should be straight forward from @hpaulj comments adding code just in case

parser.add_argument('--test', action='append', required=True, \
                choices=['test1 ', 'test2 ', 'test3 '])

answered Nov 30, 2021 at 10:39

Pranjal Doshi

1,36220 silver badges44 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Multiple argument in python argparse

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related