CODEWITHSUNDEEP
pythonimportlintpyflakes
Venkatesh Bachu
Venkatesh Bachu

Reputation: 2553

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

I split my tests across multiple Python files:

tests
├── __init__.py
├── test_apples.py
└── test_bananas.py.py

I import the tests in the ‘__init__.py’ file:

from test_apples import ApplesTest
from test_bananas import BananasTest

However running Pyflakes on the command-line:

pyflakes .

outputs the following errors:

tests/__init__.py:1: [E] PYFLAKES:'ApplesTest' imported but unused
tests/__init__.py:2: [E] PYFLAKES:'BananasTest' imported but unused

Upvotes: 78

Views: 51502

Answers (7)

Prodelos S
Prodelos S

Reputation: 1

When you import x from y module using:

from y import x

remember to print the x using:

print(x)

Upvotes: 0

Sinisa Rudan
Sinisa Rudan

Reputation: 988

add # noqa: F401 to the end of your line (F401 is a code of this error)

Example: from django.utils import http # noqa: F401

Upvotes: 8

Andrew Aylett
Andrew Aylett

Reputation: 40690

The imports are interpreted as being unused because your linting tool doesn't understand how it's being used.

The most comprehensive fix is to ensure that these names are clearly exported from your module. Either by setting __all__, which is a mechanism for exhaustively enumerating the exported names, or by giving the imports explicit exported names using as.

from test_apples import ApplesTest as ApplesTest

However, I would generally recommend using a test runner that scans for test cases rather than importing them all, as that gives you more confidence that you're definitely running all of your tests.

Upvotes: 3

Géry Ogam
Géry Ogam

Reputation: 8027

To ignore all errors F401 (‘imported but unused’) in ‘__init__.py’ files, the option ‘per-file-ignores’ which has been available since version 3.7.0 of Flake8 (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

Upvotes: 132

ILYA Khlopotov
ILYA Khlopotov

Reputation: 725

Add # pyflakes.ignore comment on every line you want to ignore (in your case import statements).

Upvotes: -7

horbor
horbor

Reputation: 660

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.

Upvotes: 21

dustinfarris
dustinfarris

Reputation: 1370

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

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

Upvotes: 15

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