Argparse with subparsers not working and I cannot figure it out

Question

I am using argparse with subparsers to do different actions. Each action has slightly different arguments.

I have set it up as the documentations instructs, with one action in subparser ( parser_2 ) and the other subparser ( parser_3 ) when i do help for usage of each it says the correct parameters

This is for cdf :

positional arguments:
  repo                  name the repo to perform tasks on

optional arguments:
  -h, --help            show this help message and exit
  --state {open,closed}
                        Print issues in a repository having status of
                        all(default), open, or closed

this is for clsiss :

usage: subparsprob.py clsiss [-h] repo issnums [issnums ...]

positional arguments:
  repo        name the repo to perform tasks on
  issnums     put the issue number(s) separated by blank

optional arguments:
  -h, --help  show this help message and exit

however when i actually run the commands i get usage errors: for clsiss executing from command line:

PS C:\xxx> python subparsprob.py clsiss repo 1
usage: subparsprob.py clsiss [-h] repo issnums [issnums ...]
subparsprob.py clsiss: error: argument issnums: invalid int value: 'repo'

for cdf (executing from command line):

PS C:\xxx> python subparsprob.py cdf repo
usage: subparsprob.py clsiss [-h] repo issnums [issnums ...]
subparsprob.py clsiss: error: argument issnums: invalid int value: 'repo'

please help, I am using the correct arguments and number of argument but cannot figure out why the usage is wrong when i actually try to run it

i am still getting the same error, here is the entire code, I cannot figure it out. Please help

#!/usr/bin/python3
import argparse
import sys
import os
argv = sys.argv[1:]
# from issueGithub import IssueGithub, Taskname
def main():
   parser=argparse.ArgumentParser(description='Invoke various github 
   actions')
   subparsers = parser.add_subparsers(help='sub-commands for Github 
   options',dest='action_name')
   parser_2 =subparsers.add_parser('clsiss',help='close issues')
   parser_2.add_argument('repo',type=str,help="name the repo to perform 
   tasks 
   on")
   parser_2.add_argument('issnums',type=int,nargs='+',help="put the issue 
   number(s) separated by blank")
   parser_3 = subparsers.add_parser('cdf',help='create default 
   tasks/issues')
   parser_3.add_argument('repo',type=str,help="name the repo to perform 
   tasks 
   on")
   parser_3.add_argument('--state',choices=['open','closed'], default='all', 
   help='Print issues in a repository
   args = parser.parse_args()
   args2 = parser_2.parse_args()
   args3 = parser_3.parse_args()
   print("Args are")
   print(args)
   print(args2)
   print(args3)
if __name__ =="__main__":
    main()

Answer 1

With a copy-n-paste of your code:

1301:~/mypy$ python3 stack58684096.py -h
usage: stack58684096.py [-h] {clsiss,cdf} ...

Invoke various actions

positional arguments:
  {clsiss,cdf}  sub-commands for options
    clsiss      close issues
    cdf         create default tasks/issues

optional arguments:
  -h, --help    show this help message and exit

I don't get your errors:

1302:~/mypy$ python3 stack58684096.py clsiss repo 1
Namespace(action_name='clsiss', issnums=[1], repo='repo')
1302:~/mypy$ python3 stack58684096.py cdf repo
Namespace(action_name='cdf', repo='repo', state='all')

1302:~/mypy$ python3 stack58684096.py clsiss -h
usage: stack58684096.py clsiss [-h] repo issnums [issnums ...]

positional arguments:
  repo        name the repo to perform tasks on
  issnums     put the issue number(s) separated by blank

optional arguments:
  -h, --help  show this help message and exit

Your errors - sort of:

1302:~/mypy$ python3 stack58684096.py clsiss repo
usage: stack58684096.py clsiss [-h] repo issnums [issnums ...]
stack58684096.py clsiss: error: the following arguments are required: issnums
1304:~/mypy$ python3 stack58684096.py clsiss repo repo
usage: stack58684096.py clsiss [-h] repo issnums [issnums ...]
stack58684096.py clsiss: error: argument issnums: invalid int value: 'repo'