custom prefixes for argparse.BooleanOptionalAction

[e-kwsm]

Feature or enhancement

Proposal:

At the moment, argparse.BooleanOptionalAction gives e.g. --foo vs --no-foo, whose prefix is hardcoded:

cpython/Lib/argparse.py

Line 848 in cd516cd

option_string = '--no-' + option_string[2:]

cpython/Lib/argparse.py

Line 863 in cd516cd

setattr(namespace, self.dest, not option_string.startswith('--no-'))

It would be beneficial if we can change the prefixes of the binary options: e.g. --enable- vs --disable- like autoconf.

usage: [-h] [--enable-foo | --disable-foo]

options:
  -h, --help            show this help message and exit
  --enable-foo, --disable-foo
                        helpstring for foo

Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

No response