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Description:

pytestflakes 4.0.5

pytest-flakes
py.test plugin for efficiently checking python source with pyflakes.

Usage
install via:
pip install pytest-flakes
if you then type:
py.test --flakes
every file ending in .py will be discovered and run through pyflakes,
starting from the command line arguments.

Simple usage example
Consider you have this code:
# content of module.py

import os
from os.path import *

def some_function():
pass
Running it with pytest-flakes installed shows two issues:
$ py.test -q --flakes
F
================================= FAILURES =================================
______________________________ pyflakes-check ______________________________
/tmp/doc-exec-685/module.py:2: UnusedImport
'os' imported but unused
/tmp/doc-exec-685/module.py:3: ImportStarUsed
'from os.path import *' used; unable to detect undefined names
1 failed in 0.00 seconds
These are only two of the many issues that pytest-flakes can find.

Configuring pyflakes options per project and file
You may configure pyflakes-checking options for your project
by adding an flakes-ignore entry to your setup.cfg
or pytest.ini file like this:
# content of setup.cfg
[pytest]
flakes-ignore = ImportStarUsed
This would globally prevent complaints about star imports.
Rerunning with the above example will now look better:
$ py.test -q --flakes
F
================================= FAILURES =================================
_________________ pyflakes-check(ignoring ImportStarUsed) __________________
/tmp/doc-exec-685/module.py:2: UnusedImport
'os' imported but unused
1 failed in 0.00 seconds
But of course we still would want to delete the import os line to
have a clean pass.
If you have some files where you want to specifically ignore
some errors or warnings you can start a flakes-ignore line with
a glob-pattern and a space-separated list of codes:
# content of setup.cfg
[pytest]
flakes-ignore =
*.py UnusedImport
doc/conf.py ALL

Ignoring certain lines in files
You can ignore errors per line by appending special comments to them like this:
import sys # noqa
app # pragma: no flakes

Running pyflakes checks and no other tests
You can restrict your test run to only perform “flakes” tests
and not any other tests by typing:
py.test --flakes -m flakes
This will only run tests that are marked with the “flakes” keyword
which is added for the flakes test items added by this plugin.
If you are using pytest < 2.4, then use the following invocation
to the same effect:
py.test --flakes -k flakes

Notes
The repository of this plugin is at https://github.com/asmeurer/pytest-flakes
For more info on py.test see http://pytest.org
The code is partially based on Ronny Pfannschmidt’s pytest-codecheckers plugin
and Holger Krekel’s pytest-pep8.

Changes

4.0.5 - 2021-12-02

Further fixes for deprecations in the upcoming pytest 7.0. [nicoddemus]

4.0.4 - 2021-10-26

Fix pytest-flakes for deprecations in the upcoming pytest 7.0. [bluetech]
Fix the pytest-flakes test suite in Python 3.10. [bluetech]
Replace Travis CI with GitHub Actions. [bluetech]

4.0.3 - 2020-11-27

Future proof some code against future versions of pytest. [RonnyPfannschmidt]

4.0.2 - 2020-09-18

Fix calling pytest –flakes directly on an __init__.py file. [akeeman]

4.0.1 - 2020-07-28

Maintenance of pytest-flakes has moved from fschulze to asmeurer. The repo
for pytest-flakes is now at https://github.com/asmeurer/pytest-flakes/
Fix test failures.
[asmeurer]
Fix deprecation warnings from pytest.
[asmeurer]
Fix invalid escape sequences.
[akeeman]

4.0.0 - 2018-08-01

Require pytest >= 2.8.0 and remove pytest-cache requirement.
Cache is included in pytest since that version.
[smarlowucf (Sean Marlow)]

3.0.2 - 2018-05-16

Fix typo in name of flakes marker.
[fschulze]

3.0.1 - 2018-05-16

Always register flakes marker, not only when the --flakes option
is used.
[fschulze]

3.0.0 - 2018-05-16

Drop support for Python 3.3. It still works so far, but isn’t tested anymore.
[fschulze]
Add flakes marker required since pytest 3.1.
[fschulze]
Use pyflakes.api.isPythonFile to detect Python files. This might test more
files than before and thus could cause previously uncaught failures.
[asmeurer (Aaron Meurer)]

2.0.0 - 2017-05-12

Dropped support/testing for Python 2.5, 2.6, 3.2.
[fschulze]
Added testing for Python 3.6.
[fschulze]
Fixed some packaging and metadata errors.
[fladi (Michael Fladischer), fschulze]

1.0.1 - 2015-09-17

Compatibility with upcoming pytest.
[RonnyPfannschmidt (Ronny Pfannschmidt)]

1.0.0 - 2015-05-01

Fix issue #6 - support PEP263 for source file encoding.
[The-Compiler (Florian Bruhin), fschulze]
Clarified license to be MIT like pytest-pep8 from which this is derived.
[fschulze]

0.2 - 2013-02-11

Adapt to pytest-2.4.2 using add_marker() API.
[fschulze, hpk42 (Holger Krekel)]
Allow errors to be skipped per line by appending # noqa or # pragma: no flakes
[fschulze, silviot (Silvio Tomatis)]
Python 3.x compatibility.
[fschulze, encukou (Petr Viktorin)]

0.1 - 2013-02-04

Initial release.
[fschulze (Florian Schulze)]