Output of `argcomplete.warn` does not show about argcomplete HOT 4 CLOSED

Hi, thanks for your interest in argcomplete. Are you calling argcomplete.warn() outside the context of a completer callable? It is only supported in completer callables (and only when they are invoked). Can you give a complete example (including the Python portion)?

from argcomplete.

@kislyuk Thanks for the reply! I don't mean anything special. Let's just take the following simple example and let's assume I want to see the value of COMP_LINE when in autocomplete mode for debugging purposes. Let's call the file argcomplete-test.py and do eval "$(register-python-argcomplete3 ./argcomplete-test.py)" and then type ./argcomplete-test.py <TAB>. Is there any sensible way (without meddling with the bash function) to see what the print statement prints outside of a completer callable?

#!/usr/bin/env python3
# PYTHON_ARGCOMPLETE_OK

import argparse
import argcomplete
import os
import sys

def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('--foo', required=True, help='foo help')
    comp_line = os.getenv('COMP_LINE', '[not in AC mode]')
    print('COMP_LINE: %s' % comp_line, file=sys.stderr)
    argcomplete.autocomplete(parser)
    args = parser.parse_args()
    print(args.foo)

if __name__ == '__main__':
    main()

from argcomplete.

No - the muting of print statements is intentional. Programs that depend on argcomplete print a variety of stuff during their startup process that we don't want to be shown when pressing <TAB>.

from argcomplete.

In general, argcomplete.warn() is only supported in completers. This is because argcomplete.warn() is not instrumented to run in the caller scope until argcomplete.autocomplete() is called - and once it's called, it never returns (as described in the docs). The only reason warn() is supported in completers is that they are callbacks - they get called in the course of running autocomplete().

I'm going to close this issue now, since it doesn't seem to be describing a bug. If you feel like there's a bug or missing feature, please feel free to describe the specifics of how it would be implemented while maintaining the existing API/protocol.

from argcomplete.