How to ignore Pyflakes errors ‘imported but unused’ in __init__.py in Python?

To ignore all errors F401 (‘imported but unused’) in ‘__init__.py’ files, the option ‘per-file-ignores’ which has been available since Flake8 version 3.7.0 (a better Pyflakes) is very convenient. It can be used on the command-line:

flake8 --per-file-ignores="__init__.py:F401" .

or in a configuration file (‘.flake8’, ‘setup.cfg’ or ‘tox.ini’):

[flake8]
per-file-ignores = __init__.py:F401

In my version of PyFlakes (0.7.3), using __all__ works.

Additionally, to skip a line, you should add # noqa.

Sometimes you have to skip a line. According to the current versions docs (flake8 2.4.1) The files that contain

# flake8: noqa

are skipped. This works, and # noga, # pyflakes.ignore not.