Problem
Hello, with the latest version of Pytest a series of new issues has started to pop-up to warn users (and plugin maintainers) about future changes on how Pytest will work. This is a great work done by Pytest maintainers, and pushes the community towards a better future.
However, after informing plugin maintainers about the upcoming changes, I would like to silence these warnings so I can focus in fixing the errors detected on the tests (otherwise the output is too big and difficult to scroll through to find useful information).
To solve this, I naturally tried to modify my pytest.ini file with a ignore filter for these warnings, however Pytest is still printing some of them even after I added the warning filters.
Example for reproduction
The following script can be used to reproduce the problem:
git clone https://github.com/pypa/sampleproject.git
cd sampleproject
sed -i '/^\s*pytest$/a \ pytest-flake8' tox.ini
sed -i '/^\s*pytest$/a \ pytest-black' tox.ini
sed -i 's/py.test tests/py.test tests --black --flake8/' tox.ini
cat << _STR > pytest.ini
[pytest]
filterwarnings=
# Fail on warnings
error
# tholo/pytest-flake8#83
# shopkeep/pytest-black#55
# dbader/pytest-mypy#131
ignore:<class '.*'> is not using a cooperative constructor:pytest.PytestDeprecationWarning
ignore:The \(fspath. py.path.local\) argument to .* is deprecated.:pytest.PytestDeprecationWarning
ignore:.* is an Item subclass and should not be a collector.*:pytest.PytestWarning
_STR
tox -e py38Relevant output:
(...)
py38 run-test: commands[3] | py.test tests --black --flake8
/tmp/sampleproject/.tox/py38/lib/python3.8/site-packages/_pytest/nodes.py:664: PytestWarning: BlackItem is an Item subclass and should not be a collector, however its bases File are collectors.
Please split the Collectors and the Item into separate node types.
Pytest Doc example: https://docs.pytest.org/en/latest/example/nonpython.html
example pull request on a plugin: https://github.com/asmeurer/pytest-flakes/pull/40/
warnings.warn(
/tmp/sampleproject/.tox/py38/lib/python3.8/site-packages/_pytest/nodes.py:664: PytestWarning: Flake8Item is an Item subclass and should not be a collector, however its bases File are collectors.
Please split the Collectors and the Item into separate node types.
Pytest Doc example: https://docs.pytest.org/en/latest/example/nonpython.html
example pull request on a plugin: https://github.com/asmeurer/pytest-flakes/pull/40/
warnings.warn(
(...)
(The warnings seem to be shown only once per worker per plugin, but considering you have 32 workers with pytest-xdist and 4 plugins that haven't adapted to the changes yet, the output can be very verbose and difficult to navigate)
Expected behaviour
Pytest should not print the warnings:
Flake8Item is an Item subclass and should not be a collector...BlackItem is an Item subclass and should not be a collector...
Environment information
$ .tox/py38/bin/python -V
Python 3.8.10
$ .tox/py38/bin/pip list
Package Version
----------------- -------
attrs 21.4.0
black 22.1.0
build 0.7.0
check-manifest 0.47
click 8.0.3
flake8 4.0.1
iniconfig 1.1.1
mccabe 0.6.1
mypy-extensions 0.4.3
packaging 21.3
pathspec 0.9.0
pep517 0.12.0
peppercorn 0.6
pip 21.3.1
platformdirs 2.4.1
pluggy 1.0.0
py 1.11.0
pycodestyle 2.8.0
pyflakes 2.4.0
pyparsing 3.0.7
pytest 7.0.0
pytest-black 0.3.12
pytest-flake8 1.0.7
sampleproject 2.0.0
setuptools 60.5.0
toml 0.10.2
tomli 2.0.0
typing_extensions 4.0.1
wheel 0.37.1
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.3 LTS
Release: 20.04
Codename: focal
$ tox --version
3.24.4 imported from ~/.local/lib/python3.8/site-packages/tox/__init__.py
pip listfrom the virtual environment you are usingProblem
Hello, with the latest version of Pytest a series of new issues has started to pop-up to warn users (and plugin maintainers) about future changes on how Pytest will work. This is a great work done by Pytest maintainers, and pushes the community towards a better future.
However, after informing plugin maintainers about the upcoming changes, I would like to silence these warnings so I can focus in fixing the errors detected on the tests (otherwise the output is too big and difficult to scroll through to find useful information).
To solve this, I naturally tried to modify my
pytest.inifile with aignorefilter for these warnings, however Pytest is still printing some of them even after I added the warning filters.Example for reproduction
The following script can be used to reproduce the problem:
Relevant output:
(The warnings seem to be shown only once per worker per plugin, but considering you have 32 workers with
pytest-xdistand 4 plugins that haven't adapted to the changes yet, the output can be very verbose and difficult to navigate)Expected behaviour
Pytest should not print the warnings:
Flake8Item is an Item subclass and should not be a collector...BlackItem is an Item subclass and should not be a collector...Environment information
$ .tox/py38/bin/python -V Python 3.8.10 $ .tox/py38/bin/pip list Package Version ----------------- ------- attrs 21.4.0 black 22.1.0 build 0.7.0 check-manifest 0.47 click 8.0.3 flake8 4.0.1 iniconfig 1.1.1 mccabe 0.6.1 mypy-extensions 0.4.3 packaging 21.3 pathspec 0.9.0 pep517 0.12.0 peppercorn 0.6 pip 21.3.1 platformdirs 2.4.1 pluggy 1.0.0 py 1.11.0 pycodestyle 2.8.0 pyflakes 2.4.0 pyparsing 3.0.7 pytest 7.0.0 pytest-black 0.3.12 pytest-flake8 1.0.7 sampleproject 2.0.0 setuptools 60.5.0 toml 0.10.2 tomli 2.0.0 typing_extensions 4.0.1 wheel 0.37.1 $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 20.04.3 LTS Release: 20.04 Codename: focal $ tox --version 3.24.4 imported from ~/.local/lib/python3.8/site-packages/tox/__init__.py