python / python/cpython

custom prefixes for `argparse.BooleanOptionalAction`

Open
#119,377 2 comments 0 reactions 1 assignee View on GitHub

@serhiy-storchaka is already working on this.

Since Oct 23, 2024.

stdlib type-feature
Dominant language
Python
Stars
77.2k
Forks
36k
PR merge metrics
PR metrics pending

Description

Feature or enhancement

Proposal:

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

https://github.com/python/cpython/blob/cd516cd1f5e94dba887353f421513fd172efadf3/Lib/argparse.py#L848
https://github.com/python/cpython/blob/cd516cd1f5e94dba887353f421513fd172efadf3/Lib/argparse.py#L863

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

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Assessment

This issue has not been assessed yet.

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.