Flake8: Ignore specific warning for entire file

Question

As of Flake8 3.7.0 you can do this using the --per-file-ignores option.

Command line example

flake8 --per-file-ignores="project/__init__.py:F401 setup.py:E121"

Or in your config file

per-file-ignores =
    project/__init__.py:F401
    setup.py:E121
    other_project/*:W9

See the documentation here: http://flake8.pycqa.org/en/latest/user/options.html?highlight=per-file-ignores#cmdoption-flake8-per-file-ignores

It is not possible to place a noqa comment for specific codes at the top of a file like you can for individual lines. # flake8: noqa: F401 may at first appear to work, but it’s actually being detected as only # flake8: noqa, which means “ignore all messages in the file”.

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