I'm not quite clear on how to use argparse and argcomplete. I'm trying to write a completion script that uses Bash to call a Python script, which uses argparse/argcomplete.
The Bash script:
#!/usr/bin/bash
_comp_func() {
local cmds=${COMP_WORDS[@]}
COMPREPLY=()
COMPREPLY=`python argcomp.py $cmds`
}
The Python script argcomp.py:
!/usr/bin/env python3
import sys
from os import environ as ENV
sys.path += ["...path to argcomplete module"]
import argcomplete, argparse
def TestCompleter(**kwargs):
return "foo bar baz"
def main():
parser = argparse.ArgumentParser(prog='argc')
parser.add_argument('--foo', action='store_true')
args = parser.parse_args()
completer = TestCompleter
completer(parser=parser)
argcomplete.autocomplete(parser)
if __name__ == "__main__":
main()
The idea being that when I type argc and hit , I can generate a list of completions using argcomplete.
If I type argc <TAB>, then it returns:
usage: argc [-h] [--foo]
argc: error: unrecognized arguments: argc
If I type argc --foo<TAB>, then it returns the same thing.
If I type argc foo, or anything else, it will return:
usage: argc [-h] [--foo]
argc: error: unrecognized arguments: argc foo
So it doesn't recognise the name of the program as an argument itself. I thought that was handled by argparse.ArgumentParser() itself, but when that didn't work I tried adding argc as the program for the ArgumentParser() method. That didn't work either.
I even tried changing the command from argc to baz, just in case it was a reserved word issue. As far as I can tell it isn't. Can anyone guide me on what I'm doing wrong here, and how to get this simple example working?
