Replace black and pylint with Ruff

.git-blame-ignore-revs

@@ -0,0 +1,2 @@
+# Apply ruff formatting and safe lint fixes
+8790758451dfde249db2c31d4cc4ff13f5106fd2

.github/workflows/style.yml

@@ -18,4 +18,6 @@ jobs:
       - name: Install Python
         run: uv python install 3.11
       - name: Check style
-        run: uv run --extra dev black --check --diff .
+        run: |
+          uv run --extra dev ruff format --check --diff .
+          uv run --extra dev ruff check .

DEVELOPING.md

@@ -8,10 +8,17 @@ We welcome community contributions in the form of pull requests. When contributi
 - Unit tests are written for new features that are not covered by [existing tests](https://github.com/MIT-LCP/wfdb-python/tree/main/tests).
 - The code style is consistent with the project's formating standards.
 
-Run the formatter with:
+Format and lint the code with [Ruff](https://docs.astral.sh/ruff/):
 
 ```sh
-black .
+ruff format .
+ruff check .
+```
+
+Commits that only reformat the code are listed in [.git-blame-ignore-revs](./.git-blame-ignore-revs). GitHub skips them in its blame view automatically. To do the same locally, run:
+
+```sh
+git config blame.ignoreRevsFile .git-blame-ignore-revs
 ```
 
 ## Package and Dependency Management

docs/changes.rst

@@ -17,6 +17,9 @@ Unreleased
 **Build with uv_build**
   The package is now built with ``uv_build`` instead of ``hatchling``. The version number is specified in ``pyproject.toml`` only, and ``wfdb.__version__`` is read from the installed package metadata (it is ``"unknown"`` if the package is run from a source tree without being installed).
 
+**Use Ruff for formatting and linting**
+  The ``dev`` extra now includes ``ruff`` instead of ``black`` and ``pylint``, and the code is formatted with a line length of 88 (the default).
+
 Version 4.3.1 (Feb 2026)
 -----------------------------
 

docs/conf.py

@@ -1,5 +1,4 @@
 #!/usr/bin/env python3
-# -*- coding: utf-8 -*-
 #
 # WFDB documentation build configuration file, created by
 # sphinx-quickstart on Tue Jan  2 13:19:02 2018.