ci!: Add ruff, replacing isort, flake8 and its extensions

See also:
- https://ruff.rs/
- https://beta.ruff.rs/
- https://github.com/charliermarsh/ruff

.github/workflows/tests.yml

@@ -33,8 +33,8 @@ jobs:
           python -V
           poetry run python -V
 
-      - name: Lint with flake8
-        run: poetry run flake8
+      - name: Lint with ruff
+        run: poetry run ruff .
 
       - name: Lint with mypy
         run: poetry run mypy .

Makefile

@@ -12,9 +12,6 @@ entr_warn:
 	@echo "See https://eradman.com/entrproject/                      " 
 	@echo "----------------------------------------------------------"
 
-isort:
-	poetry run isort `${PY_FILES}`
-
 black:
 	poetry run black `${PY_FILES}`
 
@@ -36,11 +33,11 @@ start_docs:
 design_docs:
 	$(MAKE) -C docs design
 
-flake8:
-	flake8
+ruff:
+	ruff .
 
-watch_flake8:
-	if command -v entr > /dev/null; then ${PY_FILES} | entr -c $(MAKE) flake8; else $(MAKE) flake8 entr_warn; fi
+watch_ruff:
+	if command -v entr > /dev/null; then ${PY_FILES} | entr -c $(MAKE) ruff; else $(MAKE) ruff entr_warn; fi
 
 mypy:
 	poetry run mypy `${PY_FILES}`

pyproject.toml

@@ -44,7 +44,7 @@ python = "^3.7"
 myst_parser = ">=0.18.1"
 docutils = "*"
 
-[tool.poetry.dev-dependencies]
+[tool.poetry.group.dev.dependencies]
 ### Docs ###
 sphinx = "*"
 furo = "*"
@@ -67,19 +67,14 @@ pytest-cov = "*"
 
 ### Format ###
 black = "*"
-isort = "*"
 
 ### Lint ###
-flake8 = [
-  { version = "*", python = "^3.7" },
-  { version = ">=5", python = "^3.8" },
-]
-flake8-bugbear = "*"
-flake8-comprehensions = "*"
+ruff = "*"
 mypy = "*"
 typing-extensions = { version = "*", python = "^3.7" }
 types-docutils = "*"
 
+
 [tool.poetry.extras]
 docs = [
   "sphinx",
@@ -95,9 +90,7 @@ test = ["pytest", "pytest-rerunfailures", "pytest-watcher"]
 coverage = ["codecov", "coverage", "pytest-cov"]
 format = ["black", "isort"]
 lint = [
-  "flake8",
-  "flake8-bugbear",
-  "flake8-comprehensions",
+  "ruff",
   "mypy",
   "types-docutils",
   "typing-extensions",