%run script arguments completion

[anki-code]

Hello @minrk!

Is there a way to extend arguments completion for %run command? For example to add support of https://github.com/kislyuk/argcomplete

Example. I have test.py:

import argcomplete, argparse

def arg2completion(prefix, parsed_args, **kwargs):
  return ['aaa','bbb','bbc']

parser = argparse.ArgumentParser()
parser.add_argument("--arg1")
parser.add_argument("--arg2").completer = arg2completion

argcomplete.autocomplete(parser)
args = parser.parse_args()

Then I type run with TAB key it and get the possible args:

%run test.py --arg<TAB>
--arg1 --arg2

%run test.py --arg2 <TAB>
aaa bbb ccc

%run test.py --arg2 b<TAB>
bbb bbc

Thanks!