Drop support for end-of-life Python 3.9

Author: jlaine

.github/workflows/tests.yml

@@ -9,7 +9,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.9
+          python-version: "3.10"
       - name: Build documentation
         env:
           READTHEDOCS: "True"
@@ -23,7 +23,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.9
+          python-version: "3.10"
       - name: Install packages
         run: pip install check-manifest mypy ruff types-certifi types-pyopenssl
       - name: Run linters
@@ -56,7 +56,6 @@ jobs:
           - "3.12"
           - "3.11"
           - "3.10"
-          - "3.9"
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
@@ -96,7 +95,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.9
+          python-version: "3.10"
       - name: Build source package
         run: |
           pip install -U build
@@ -133,7 +132,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.11
+          python-version: "3.11"
       - name: Build wheels
         env:
           CIBW_ARCHS: ${{ matrix.arch }}

pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "setuptools.build_meta"
 name = "aioquic"
 description = "An implementation of QUIC and HTTP/3"
 readme = "README.rst"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 license = "BSD-3-Clause"
 authors = [
     { name = "Jeremy Lainé", email = "[email protected]" },
@@ -18,7 +18,6 @@ classifiers = [
     "Operating System :: OS Independent",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
@@ -37,7 +36,6 @@ dynamic = ["version"]
 [project.optional-dependencies]
 dev = [
     "coverage[toml]>=7.2.2",
-    "typing_extensions; python_version < '3.10'",
 ]
 
 [project.urls]

setup.py

@@ -16,7 +16,7 @@ def get_tag(self):
         python, abi, plat = super().get_tag()
 
         if python.startswith("cp"):
-            return "cp39", "abi3", plat
+            return "cp310", "abi3", plat
 
         return python, abi, plat
 
@@ -27,15 +27,15 @@ def get_tag(self):
             "aioquic._buffer",
             extra_compile_args=extra_compile_args,
             sources=["src/aioquic/_buffer.c"],
-            define_macros=[("Py_LIMITED_API", "0x03080000")],
+            define_macros=[("Py_LIMITED_API", "0x030A0000")],
             py_limited_api=True,
         ),
         setuptools.Extension(
             "aioquic._crypto",
             extra_compile_args=extra_compile_args,
             libraries=libraries,
             sources=["src/aioquic/_crypto.c"],
-            define_macros=[("Py_LIMITED_API", "0x03080000")],
+            define_macros=[("Py_LIMITED_API", "0x030A0000")],
             py_limited_api=True,
         ),
     ],

tests/utils.py

@@ -4,13 +4,7 @@
 import ipaddress
 import logging
 import os
-import sys
-from typing import Callable, Coroutine, Tuple, TypeVar
-
-if sys.version_info >= (3, 10):
-    from typing import ParamSpec
-else:
-    from typing_extensions import ParamSpec
+from typing import Callable, Coroutine, ParamSpec, Tuple, TypeVar
 
 from cryptography import x509
 from cryptography.hazmat.primitives import hashes