python linting

.github/workflows/check.yml

@@ -11,12 +11,24 @@ jobs:
     steps:
       # Set up
       - uses: actions/checkout@v4
+
       - uses: actions/setup-node@v4
         with:
           node-version: "20" # Oldest LTS at time of writing
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.x"
+
       - run: npm ci
+      - run: pip install mitmproxy ruff mypy
 
-      # Run checks
+      # Run JS checks
       - run: npm run format:check
       - run: npm run lint:check
       - run: npm run build
+
+      # Run Python checks
+      - run: ruff format --check
+      - run: ruff check
+      - run: mypy

pyproject.toml

@@ -0,0 +1,3 @@
+[tool.mypy]
+files = "src/python/**/*.py"
+strict = true