Drop unmaintained pytest-flake8

Just call `flake8` instead.

See
- tholo/pytest-flake8#98
- tholo/pytest-flake8#92

Makefile

@@ -13,7 +13,7 @@ clean:
 	rm -fr *.egg-info
 
 lint:
-	$(PYTEST) --flake8 -m flake8 $(PROJECT_NAME)
+	$(FLAKE8) $(PROJECT_NAME)
 	$(PYTEST) --isort -m isort $(PROJECT_NAME)
 
 fix:

Makefile.config

@@ -3,6 +3,7 @@ PROJECT_NAME = pygal
 # Python env
 PYTHON_VERSION ?= python
 VENV = $(PWD)/.env$(if $(filter $(PYTHON_VERSION),python),,-$(PYTHON_VERSION))
+FLAKE8 = $(VENV)/bin/flake8
 PIP = $(VENV)/bin/pip
 PYTHON = $(VENV)/bin/python
 PYTEST = $(VENV)/bin/py.test

docs/contributing.rst

@@ -18,14 +18,15 @@ The pygal code tries to respect the `pep8 <https://www.python.org/dev/peps/pep-0
 Testing
 =======
 
-Before submiting a pull request, please check that all tests still pass.
+Before submiting a pull request, please check that linting and all tests still pass.
 
 
-To do this install ``py.test`` and them run ``py.test`` in the root of your pygal clone:
+To do this launch `make install` and then run in the root of your pygal clone:
 
 .. code-block:: bash
 
-   [dev@dev pygal/]$ py.test --flake8
+   [dev@dev pygal/]$ make check
+   [dev@dev pygal/]$ make lint
 
 
 Even better if you have several python versions installed you can run ``tox``.

setup.cfg

@@ -4,9 +4,7 @@ universal = 1
 [pycodestyle]
 ignore = E731,E402,E741,W503
 
-[tool:pytest]
-flake8-ignore =
-    *.py E731 E402 E741 W503 W504
-    pygal/__init__.py F401
-    pygal/_compat.py F821 F401
-    docs/conf.py ALL
+[flake8]
+per-file-ignores =
+    *.py:E731 E741
+    pygal/__init__.py:E402 F401

setup.py

@@ -51,7 +51,8 @@ def run_tests(self):
 tests_requirements = [
     "pyquery", "flask", cairosvg, 'lxml', 'pygal_maps_world', 'pygal_maps_fr',
     'pygal_maps_ch', 'coveralls',
-    'pytest-runner', 'pytest-cov', 'pytest-flake8', 'pytest-isort',
+    'flake8',
+    'pytest-runner', 'pytest-cov', 'pytest-isort',
     'pytest'
 ]
 

tox.ini

@@ -3,8 +3,8 @@ envlist = py36,py37,py38,py39,pypy
 
 [testenv]
 deps =
+     flake8
      pytest
-     pytest-flake8
      coverage
      lxml
      pyquery
@@ -14,5 +14,6 @@ setenv =
     COVERAGE_FILE=.cov-{envname}
 
 commands =
-  coverage run --source=pygal {envbindir}/py.test {posargs:pygal/test} --junitxml=junit-{envname}.xml --flake8
+  coverage run --source=pygal {envbindir}/py.test {posargs:pygal/test} --junitxml=junit-{envname}.xml
   coverage xml -o coverage-{envname}.xml
+  flake8 pygal