Flake8 __author__ Checker

flake8-author is a Flake8 extension that
checks Python modules for module-level __author__ attributes.
There is no official standard on __author__ usage. It is used largely by
convention. Guido had this to say back in 2001:
Anothor source of discomfort is that there’s absolutely no standard for
this kind of meta-data variables. We’ve got __version__, and I believe we
once agreed on that (in 1994 or so :-). But __author__? __credits__?
What next – __cute_signoff__?
This extension can therefore be configured to explicitly require or forbid
__author__ attributes. By default, __author__ is considered optional.
If the __author__ attribute is allowed, its value can also be validated
using a configurable regular expression pattern.
The __author__ attribute is generally assigned to a string, but multiple
authors can be listed using a list (or tuple or set) of strings.
Installation
Install from PyPI using pip:
$ pip install flake8-author
The extension will be activated automatically by flake8. You can verify
that it has been loaded by inspecting the flake8 --version string.
$ flake8 --version
7.3.0 (author: 2.3.0, ...) CPython 3.11.13 on Darwin
Error Codes
This extension adds three new error codes (using the A40 prefix):
A400: a module-level __author__ attribute is required
A401: __author__ attributes are not allowed
A402: __author__ attribute value does not match pattern
Configuration
Configuration values are specified in the [flake8] section of your config
file or as command line arguments (e.g. --author-attribute=required).
author-attribute: “optional”, “required”, “forbidden” (default: optional)
author-pattern: __author__ validation re pattern (default: '')