A Flake8 plugin and pre-commit hook which checks to ensure modules have defined '__all__'.

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flake8-dunder-all can be installed from PyPI or Anaconda.

To install with pip:

$ python -m pip install flake8-dunder-all

To install with conda:

• First add the required channels

$ conda config --add channels https://conda.anaconda.org/conda-forge
$ conda config --add channels https://conda.anaconda.org/domdfcoding

• Then install

$ conda install flake8-dunder-all

See pre-commit for instructions

Sample .pre-commit-config.yaml:

- repo: https://gitlab.com/pycqa/flake8
  rev: 3.8.1
  hooks:
   - id: flake8
     additional_dependencies: [flake8-dunder-all==0.4.0]

ensure-dunder-all script

There is also a script which will automatically add __all__ for files which don't have it.

See the documentation for details.