Switched from flake8 to ruff.

Python 3.12 tested.

.github/workflows/build.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12.0-alpha - 3.12']
     steps:
     - uses: actions/checkout@v3
     - uses: actions/setup-python@v4
@@ -29,7 +29,7 @@ jobs:
     - uses: actions/setup-python@v4
       with:
         python-version: 3.x
-    - run: pip install black[jupyter] flake8 mypy
+    - run: pip install black[jupyter] ruff mypy
     - run: make lint
 
   docs:

Makefile

@@ -1,11 +1,11 @@
 check:
-	pytest -s --cov
+	python -m pytest -s --cov
 
 lint:
-	python3 -m black --check .
-	flake8 --ignore E501,F811,W503
+	black --check .
+	ruff .
 	mypy -p multimethod
 	mypy tests/static.py | grep -qv Any
 
 html:
-	PYTHONPATH=$(PWD) python3 -m mkdocs build
+	PYTHONPATH=$(PWD) python -m mkdocs build

multimethod/__init__.py

@@ -144,7 +144,7 @@ def get_type(self, arg) -> type:
             tps = {tp for tp, tp_arg in zip(tps, self.__args__) if issubclass(tp, tp_arg)}
             if not tps:
                 return type(arg)
-            return functools.reduce(lambda l, r: l if issubclass(l, r) else r, tps)  # noqa: E741
+            return functools.reduce(lambda x, y: x if issubclass(x, y) else y, tps)
         if self.__origin__ is Callable.__origin__ and isinstance(arg, Callable):
             return subtype(Callable.__origin__, *get_type_hints(arg).values())
         if not isinstance(arg, self.__origin__):  # no need to check subscripts

pyproject.toml

@@ -42,6 +42,9 @@ multimethod = ["py.typed"]
 line-length = 100
 skip-string-normalization = true
 
+[tool.ruff]
+ignore = ["E501", "F811"]
+
 [tool.coverage.run]
 source = ["multimethod"]
 branch = true

tests/test_methods.py

@@ -254,11 +254,11 @@ def f(x: enum.Enum):
 
 def test_name_shadowing():
     # an object with the same name appearing previously in the same namespace
-    temp = 123  # noqa
+    temp = 123
 
     # a multimethod shadowing that name
     @multimethod
-    def temp(x: int):  # noqa
+    def temp(x: int):
         return "int"
 
     @multimethod