Existing command should be best effort

[garryod]

As it is currently the existing sub-command requires that setup.cfg exists and is populated with the following fields:

• author
• author_email

If not found the operation fails with Expected a setup.cfg file in the directory. We should probably:

1. Also search the pyproject.toml (or perhaps use setuptools.metadata)
2. Ask for user input if they cannot be found

[coretl]

Is someone working on this, or shall I put it in the I22 bluesky sprints?

[gilesknap]

I'm not working on it

[garryod]

Me either, happy to give it a look if need be, but also more than happy not to

[coretl]

@evalott100