Support Python 3.8

Do not remove until EOL date has passed

.github/workflows/smoke.yml

@@ -37,10 +37,10 @@ jobs:
       fail-fast: false
       matrix:
         config:
-          - {os: ubuntu-latest, python: "3.9", ffmpeg: "6.1", extras: true}
-          - {os: ubuntu-latest, python: "3.9", ffmpeg: "6.0"}
+          - {os: ubuntu-latest, python: "3.8", ffmpeg: "6.1", extras: true}
+          - {os: ubuntu-latest, python: "3.8", ffmpeg: "6.0"}
           - {os: ubuntu-latest, python: pypy3.9, ffmpeg: "6.1"}
-          - {os: macos-12,  python: "3.9", ffmpeg: "6.1"}
+          - {os: macos-12,  python: "3.8", ffmpeg: "6.1"}
 
     env:
       PYAV_PYTHON: python${{ matrix.config.python }}
@@ -116,8 +116,8 @@ jobs:
       fail-fast: false
       matrix:
         config:
-          - {os: windows-latest, python: "3.9", ffmpeg: "6.1"}
-          - {os: windows-latest, python: "3.9", ffmpeg: "6.0"}
+          - {os: windows-latest, python: "3.8", ffmpeg: "6.1"}
+          - {os: windows-latest, python: "3.8", ffmpeg: "6.0"}
 
     steps:
     - name: Checkout

.github/workflows/tests.yml

@@ -10,7 +10,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.9"
+          python-version: "3.8"
       - name: Build source package
         run: |
           pip install cython
@@ -44,7 +44,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.9"
+          python-version: "3.8"
       - name: Set up QEMU
         if: matrix.os == 'ubuntu-latest'
         uses: docker/setup-qemu-action@v3

setup.py

@@ -205,7 +205,7 @@ def parse_cflags(raw_flags):
     url="https://github.com/PyAV-Org/PyAV",
     packages=find_packages(exclude=["build*", "examples*", "scratchpad*", "tests*"]),
     package_data=package_data,
-    python_requires=">=3.9",
+    python_requires=">=3.8",
     zip_safe=False,
     ext_modules=ext_modules,
     test_suite="tests",
@@ -222,6 +222,7 @@ def parse_cflags(raw_flags):
         "Operating System :: Unix",
         "Operating System :: Microsoft :: Windows",
         "Programming Language :: Cython",
+        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",