Migrate to ruff

.github/workflows/check.yml

@@ -23,11 +23,13 @@ jobs:
           coverage run -m pytest --verbose
           coverage report *.py
 
-      - name: Check code style
-        run: pycodestyle .
+      - name: Lint check
+        uses: chartboost/ruff-action@v1
 
-      - name: Check python file for typical errors
-        run: pyflakes .
+      - name: Format check
+        uses: chartboost/ruff-action@v1
+        with:
+          args: 'format --check'
 
       # type annotation checks
       - name: Type checks

.gitignore

@@ -127,3 +127,6 @@ dmypy.json
 
 # Pyre type checker
 .pyre/
+
+# Mac
+.DS_Store

README.md

@@ -21,11 +21,11 @@ enough for educational purposes.
 ## Changelog
 
 - 29.03.2022 - 2
-  - Add test coverage.
+    - Add test coverage.
 - 29.03.2022 - 1
-  - Update README. Add formal sections.
+    - Update README. Add formal sections.
 - 29.03.2022 - 0
-  - Initial
+    - Initial
 
 ## Design notes
 

foo.py

@@ -1,4 +1,4 @@
-class Foo(object):
+class Foo:
     def hello(self):
         return "hello"
 

foo_test.py

@@ -1,14 +1,14 @@
 import unittest
-from hypothesis import given,  strategies
+
+from hypothesis import given, strategies
 
 from foo import Foo
 
 
 class TestFoo(unittest.TestCase):
-
     def test_hello(self):
-        self.assertEqual(Foo().hello(), "hello")
+        assert Foo().hello() == "hello"
 
     @given(strategies.integers(), strategies.integers())
     def test_add_commutative(self, a, b):
-        self.assertEqual(Foo().add(a, b), Foo().add(b, a))
+        assert Foo().add(a, b) == Foo().add(b, a)

pyproject.toml

@@ -0,0 +1,56 @@
+[tool.ruff]
+line-length = 120
+select = [
+    # A set of chosen linter rules is specified here.
+    # See https://beta.ruff.rs/docs/rules/ for more info.
+    # pyflakes (simple obvious errors)
+    "F",
+    # pycodestyle (style linter, pep8, black-compatible)
+    "E",
+    "W",
+    # pep8-naming (style linter, pep8 naming conventions)
+    "N",
+    # isort (imports sorting)
+    "I",
+    # mccabe (cyclomatic complexity analyzer to prevent overcomplicated functions)
+    "C90",
+    # pyupgrade (possible syntax upgrades checker)
+    "UP",
+    # eradicate (commented-out code finder for it to be removed)
+    "ERA",
+    # flake8-2020 (errors related to sys.version or sys.version_info, just in case)
+    "YTT",
+    # flake8-annotations (enforces presense of type hints so the codebase is fully typed)
+    # "ANN",  # too burdensome
+    # flake8-async (async-related mistakes/errors)
+    "ASYNC",
+    # flake8-builtins (checks builtin names shadowing, it's better not to)
+    "A",
+    # flake8-commas (to enforce trailing commas)
+    "COM",
+    # flake8-future-annotations (to ensure enabling modern (3.7+) postponed evaluation of type hints)
+    "FA",
+    # flake8-import-conventions (to enforce standartized import aliases like "import pandas as pd")
+    "ICN",
+    # flake8-no-pep420 (to enforce presence of __init__.py in packages)
+    "INP",
+    # flake8-print (to disallow print statements)
+    "T20",
+    # flake8-pytest-style (to improve pytest-related style consistency)
+    "PT",
+    # flake8-quotes (to enforce quotes style)
+    "Q",
+    # flake8-return (checks mistakes related to return values)
+    "RET",
+    # flake8-use-pathlib (to enforce pathlib usage instead of os.path)
+    "PTH",
+    # pandas-vet (pandas-related advices)
+    "PD",
+    # tryceratops (try/except-related advices)
+    "TRY",
+    # ruff-specific advices
+    "RUF",
+]
+ignore = [
+    "COM812", # The following rules may cause conflicts when used with the formatter: `COM812`.
+]