_python_argcomplete() { local IFS='' COMPREPLY=( $(IFS="$IFS" COMP_LINE="$COMP_LINE" COMP_POINT="$COMP_POINT" _ARGCOMPLETE_COMP_WORDBREAKS="$COMP_WORDBREAKS" _ARGCOMPLETE=1 "$1" 8>&1 9>&2 1>/dev/null 2>/dev/null) ) if [[ $? != 0 ]]; then unset COMPREPLY fi } complete -o nospace -o default -F _python_argcomplete "version"

usage: register-python-argcomplete3 [-h] executable Register a Python executable for use with the argcomplete module. To perform the registration, source the output of this script in your bash shell (quote the output to avoid interpolation). Example: $ eval "$(register-python-argcomplete my-favorite-script.py)" positional arguments: executable optional arguments: -h, --help show this help message and exit