Switch to Ruff format (#42)

docs/contributing.md

@@ -37,16 +37,14 @@ This will try to test with all compatible Python versions that `nox` can find. T
 poetry run nox -s test-3.9 test_pandas-3.9
 ```
 
-It is good to run the tests locally before making a PR, but it is not necessary to have all Python versions run. It is rare for a failure to appear in a single version, and the CI will catch it anyway. 
+It is good to run the tests locally before making a PR, but it is not necessary to have all Python versions run. It is rare for a failure to appear in a single version, and the CI will catch it anyway.
 
 ## Code quality
 
-Tabeline uses Black, isort, and Flake8 to ensure a minimum standard of code quality. The code quality commands are encapsulated with Nox:
+Tabeline uses Ruff to ensure a minimum standard of code quality. The code quality commands are encapsulated with Nox:
 
 ```shell
-poetry run nox -s black
-poetry run nox -s isort
-poetry run nox -s flake8
+poetry run nox -s lint
 ```
 
 ## Generating the docs

noxfile.py

@@ -1,7 +1,7 @@
-import nox
+from nox import options, parametrize
 from nox_poetry import Session, session
 
-nox.options.sessions = ["test", "coverage", "lint"]
+options.sessions = ["test", "coverage", "lint"]
 
 
 @session(python=["3.9", "3.10", "3.11", "3.12"])
@@ -26,12 +26,12 @@ def coverage(s: Session):
 
 
 @session(venv_backend="none")
-def fmt(s: Session) -> None:
-    s.run("ruff", "check", ".", "--select", "I", "--fix")
-    s.run("black", ".")
+@parametrize("command", [["ruff", "check", "."], ["ruff", "format", "--check", "."]])
+def lint(s: Session, command: list[str]):
+    s.run(*command)
 
 
 @session(venv_backend="none")
-def lint(s: Session) -> None:
-    s.run("black", "--check", ".")
-    s.run("ruff", "check", ".")
+def format(s: Session) -> None:
+    s.run("ruff", "check", ".", "--select", "I", "--fix")
+    s.run("ruff", "format", ".")