Skip to content

pytest-incorrect-mark-parentheses-style (PT023)#

Derived from the flake8-pytest-style linter.

Fix is always available.

What it does#

Checks for argument-free @pytest.mark.<marker>() decorators with or without parentheses, depending on the lint.flake8-pytest-style.mark-parentheses setting.

The rule defaults to removing unnecessary parentheses, to match the documentation of the official pytest projects.

Why is this bad?#

If a @pytest.mark.<marker>() doesn't take any arguments, the parentheses are optional.

Either removing those unnecessary parentheses or requiring them for all fixtures is fine, but it's best to be consistent.

Example#

import pytest


@pytest.mark.foo
def test_something(): ...

Use instead:

import pytest


@pytest.mark.foo()
def test_something(): ...

Options#

References#