Replace black with ruff and add pre-commit

.github/workflows/style.yml

@@ -16,10 +16,10 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: ${{ matrix.python-version }}
-      - name: Install Black
+      - name: Install Ruff
         run: |
           python -m pip install --upgrade pip
-          pip install black
+          pip install ruff
       - name: Check style
         run: |
-          black --check *.py deepsensor tests
+          ruff check

.pre-commit-config.yaml

@@ -0,0 +1,9 @@
+repos:
+- repo: https://github.com/astral-sh/ruff-pre-commit
+  # Ruff version.
+  rev: v0.4.2
+  hooks:
+    # Run the linter.
+    - id: ruff
+    # Run the formatter.
+    - id: ruff-format

CONTRIBUTING.md

@@ -96,6 +96,14 @@ That is, please do not use the [rebase](https://help.github.com/en/articles/abou
 command to edit previous commit messages, combine multiple commits into one, or delete or revert
 commits that are no longer necessary.
 
+Make sure you're using the developer dependencies.
+If you're working locally on the source code, *before* commiting, please run `pip install -r requirements/requirements.dev.txt` to install some useful dependencies just for development.
+This includes `pre-commit` and `ruff` which are used to check and format your code style when you run `git commit`, so that you don't have to.
+To make this work, just run `pre-commit install`.
+
+You should also run `pytest` and check that your changes don't break any of the existing tests.
+If you've made changes to the source code, you may need to add some tests to make sure that they don't get broken in the future.
+
 #### 4. Open a Pull Request
 
 We encourage you to open a pull request as early in your contributing process as possible.

pyproject.toml

@@ -16,4 +16,10 @@ warn_redundant_casts = true
 warn_return_any = true
 warn_unreachable = true
 warn_unused_configs = true
-no_implicit_reexport = true
+no_implicit_reexport = true
+
+[tool.ruff.lint]
+select = ["D"]
+
+[tool.ruff.lint.pydocstyle]
+convention = "google"

requirements/requirements.dev.txt

@@ -1,8 +1,9 @@
 # Additional requirements for development
+coveralls
+parameterized
+pre-commit
 pytest
 pytest-cov
-parameterized
+ruff
 tox
 tox-gh-actions
-coveralls
-black