chore: fix F841 errors reported by flake8

Local variable name is assigned to but never used

https://www.flake8rules.com/rules/F841.html

.github/workflows/lint.yml

@@ -12,14 +12,6 @@ env:
   PY_COLORS: 1
 
 jobs:
-  black:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
-      - uses: psf/black@stable
-        with:
-          black_args: ". --check"
   commitlint:
     runs-on: ubuntu-latest
     steps:
@@ -28,10 +20,15 @@ jobs:
           fetch-depth: 0
       - uses: wagoid/commitlint-github-action@v3
 
-  mypy:
+  linters:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
       - run: pip install --upgrade tox
-      - run: tox -e mypy
+      - name: Run black code formatter (https://black.readthedocs.io/en/stable/)
+        run: tox -e black -- --check
+      - name: Run flake8 (https://flake8.pycqa.org/en/latest/)
+        run: tox -e pep8
+      - name: Run mypy static typing checker (http://mypy-lang.org/)
+        run: tox -e mypy

gitlab/cli.py

@@ -162,7 +162,6 @@ def docs() -> argparse.ArgumentParser:
     if "sphinx" not in sys.modules:
         sys.exit("Docs parser is only intended for build_sphinx")
 
-    parser = _get_base_parser(add_help=False)
     # NOTE: We must delay import of gitlab.v4.cli until now or
     # otherwise it will cause circular import errors
     import gitlab.v4.cli

gitlab/tests/objects/test_appearance.py

@@ -63,4 +63,4 @@ def test_get_update_appearance(gl, resp_application_appearance):
 
 
 def test_update_appearance(gl, resp_application_appearance):
-    resp = gl.appearance.update(title=new_title, description=new_description)
+    gl.appearance.update(title=new_title, description=new_description)

gitlab/tests/test_base.py

@@ -92,7 +92,7 @@ def test_picklability(self, fake_manager):
         assert isinstance(unpickled, FakeObject)
         assert hasattr(unpickled, "_module")
         assert unpickled._module == original_obj_module
-        pickled2 = pickle.dumps(unpickled)
+        pickle.dumps(unpickled)
 
     def test_attrs(self, fake_manager):
         obj = FakeObject(fake_manager, {"foo": "bar"})

gitlab/v4/objects/todos.py

@@ -48,4 +48,4 @@ def mark_all_as_done(self, **kwargs):
         Returns:
             int: The number of todos maked done
         """
-        result = self.gitlab.http_post("/todos/mark_as_done", **kwargs)
+        self.gitlab.http_post("/todos/mark_as_done", **kwargs)

tox.ini

@@ -52,7 +52,11 @@ commands = {posargs}
 [flake8]
 exclude = .git,.venv,.tox,dist,doc,*egg,build,
 max-line-length = 88
-ignore = E501,H501,H803,W503
+# We ignore the following because we use black to handle code-formatting
+# E203: Whitespace before ':'
+# E501: Line too long
+# W503: Line break occurred before a binary operator
+ignore = E203,E501,W503
 per-file-ignores =
     gitlab/v4/objects/__init__.py:F401,F403