Add flake8 static style checker

Makefile

@@ -5,7 +5,10 @@ all:
 	@echo '   make docs        generate documentation'
 
 
-build: mypy test docs
+build: flake8 mypy test docs
+
+flake8:
+	flake8 src/
 
 mypy:
 	MYPYPATH=src mypy -p sphinx_testify -p test

requirements.dev.txt

@@ -1,3 +1,4 @@
+flake8==7.1.1
 mypy==1.13.0
 pytest==8.3.3
 sphinx==8.1.3

src/sphinx_testify/__init__.py

@@ -33,7 +33,8 @@ def setup(app: Sphinx) -> ExtensionMetadata:
         default=[],
         rebuild='env',
         types=[list[str]],
-        description="""List of testing result files paths. The results should be in JUnit XML format"""
+        description=("List of testing result files paths."
+                     " The results should be in JUnit XML format""")
     )
     app.add_directive('testify', TestifyDirective)
     app.add_event('testify-testified')
@@ -48,8 +49,8 @@ def setup(app: Sphinx) -> ExtensionMetadata:
 
 
 def _on_builder_inited(app: Sphinx):
-    env = app.env
-    setattr(env, 'testify_test_names', _parse_tests_results_xml(app.config.testify_from))
+    test_results = _parse_tests_results_xml(app.config.testify_from)
+    setattr(app.env, 'testify_test_names', test_results)
 
 
 def _parse_tests_results_xml(testify_from: list[str]) -> list[str]:
@@ -64,5 +65,7 @@ def _parse_tests_results_xml(testify_from: list[str]) -> list[str]:
             for testcase_elem in testsuite_elem.iter('testcase'):
                 test_class_name = testcase_elem.get('classname')
                 test_name = testcase_elem.get('name')
-                test_names.append(f'{testsuite_name}.{test_class_name}.{test_name}')
+                test_names.append(
+                    f'{testsuite_name}.{test_class_name}.{test_name}'
+                )
     return test_names

src/test/test_sphinx_testify.py

@@ -8,7 +8,7 @@ def test_testify_single_passed_test_case(app: SphinxTestApp):
 
     def _on_testified(_app, test_name: str):
         nonlocal testified_only_registered_users_have_access
-        if test_name == 'testsuite.testclass.test_only_registered_users_have_access':
+        if test_name == 'testsuite.testclass.test_only_registered_users_have_access':  # noqa E501 - line too long
             testified_only_registered_users_have_access = True
     app.connect('testify-testified', _on_testified)