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Flake8 __author__ checker

Project description

PyPI Version Python Versions

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.


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
3.8.4 (author: 1.2.0, ...) CPython 3.8.6 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 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: '')


1.2.0 (2020-10-12)

  • Drop Python 3.5 support and add version 3.8. and 3.9.
  • Minor documentation improvements.

1.1.4 (2017-07-29)

  • Minor code and packaging cleanup.

1.1.3 (2017-07-28)

  • Drop the setup_requires dependency on flake8.

1.1.2 (2017-01-12)

  • Only apply the author regular expression pattern check when a pattern has actually been configured.

1.1.1 (2016-11-06)

  • Fix configuration file parsing for flake8 3.0+.

1.1.0 (2016-08-15)

  • Support flake8 3.0.0 (required for development)

1.0.2 (2016-06-02)

  • Support flake8 version 2.6.0
  • Drop test dependency on pytest (development only)

1.0.1 (2016-05-11)

  • Fixed parser validation for configuration-based options

1.0.0 (2016-04-30)

  • Initial release

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