Argparse required arguments

Argeparse can it take a type list

import argparse

parser = argparse.ArgumentParser()

# By default it will fail with multiple arguments.
parser.add_argument('--default')

# Telling the type to be a list will also fail for multiple arguments,
# but give incorrect results for a single argument.
parser.add_argument('--list-type', type=list)

# This will allow you to provide multiple arguments, but you will get
# a list of lists which is not desired.
parser.add_argument('--list-type-nargs', type=list, nargs='+')

# This is the correct way to handle accepting multiple arguments.
# '+' == 1 or more.
# '*' == 0 or more.
# '?' == 0 or 1.
# An int is an explicit number of arguments to accept.
parser.add_argument('--nargs', nargs='+')

# To make the input integers
parser.add_argument('--nargs-int-type', nargs='+', type=int)

# An alternate way to accept multiple inputs, but you must
# provide the flag once per input. Of course, you can use
# type=int here if you want.
parser.add_argument('--append-action', action='append')

# To show the results of the given option to screen.
for _, value in parser.parse_args()._get_kwargs():
    if value is not None:
        print(value)

Source: stackoverflow.com

Python argparser flags

parser.add_argument("-v", "--verbose", action="store_true",
                    help="verbose output")

Argparse required arguments

parser.add_argument('--use-lang', required=True, help="Output language")

Source: stackoverflow.com

Argparse accept only few options

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

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

Source: stackoverflow.com

Similar codes

9 votes279 views1 answer
Create models in django
Python Django
6 votes248 views2 answers
If ,elif, else in python
Python
7 votes201 views1 answer
Data frame do nympy
Python
0 vote270 views1 answer
Python candlestick chart
Python
0 vote270 views1 answer
Query first 5 element in django
Python Django
4 votes234 views7 answers
Int
Python
-1 vote243 views2 answers
Insert into string python more than one
Python
3 votes238 views3 answers
Pandas sum group by
Python
2 votes243 views1 answer
Facerecognizer python
Python
1 vote269 views2 answers
Set recursion limit python
Python