Use mypy in lint

.github/workflows/tests.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Python
         uses: actions/setup-python@v5
         with:
-          python-version: 3.9
+          python-version: 3.12
 
       - name: Packages
         run: pip install -r tests/requirements.txt

Makefile

@@ -25,9 +25,10 @@ fate-suite:
 	rsync -vrltLW rsync://fate-suite.ffmpeg.org/fate-suite/ tests/assets/fate-suite/
 
 lint:
-	black --check av examples tests
+	black --check av examples tests setup.py
 	flake8 av examples tests
 	isort --check-only --diff av examples tests
+	mypy av tests
 
 test:
 	$(PYTHON) setup.py test

av/codec/context.pyi

@@ -79,6 +79,4 @@ class CodecContext:
     def parse(
         self, raw_input: bytes | bytearray | memoryview | None = None
     ) -> list[Packet]: ...
-    def encode(self, frame: Frame | None) -> list[Packet]: ...
-    def decode(self, packet: Packet | None) -> list[Frame]: ...
     def flush_buffers(self) -> None: ...

setup.py

@@ -72,7 +72,7 @@ def get_config_from_pkg_config():
     """
     Get distutils-compatible extension arguments using pkg-config.
     """
-    pkg_config = os.environ.get('PKG_CONFIG', 'pkg-config')
+    pkg_config = os.environ.get("PKG_CONFIG", "pkg-config")
     try:
         raw_cflags = subprocess.check_output(
             [pkg_config, "--cflags", "--libs"]
@@ -180,7 +180,9 @@ def parse_cflags(raw_flags):
     exec(fp.read(), about)
 
 package_folders = pathlib.Path("av").glob("**/")
-package_data = {".".join(pckg.parts): ["*.pxd", "*.pyi", "*.typed"] for pckg in package_folders}
+package_data = {
+    ".".join(pckg.parts): ["*.pxd", "*.pyi", "*.typed"] for pckg in package_folders
+}
 
 
 with open("README.md") as f:

tests/requirements.txt

@@ -6,3 +6,4 @@ isort
 flake8
 flake8-pyproject
 sphinx==5.1.0
+mypy==1.10.0