Add support for Python 3.11 and test on it (#387)

.github/workflows/nox.yml

@@ -12,7 +12,7 @@ jobs:
       fail-fast: false
       matrix:
         platform: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ["3.7", "3.8", "3.9", "3.10"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
 
     steps:
     - uses: actions/checkout@v1

.github/workflows/typeguard.yml

@@ -11,7 +11,7 @@ jobs:
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v2
       with:
-        python-version: "3.10"
+        python-version: "3.11"
     - name: Install dependencies
       run: pip install nox
     - name: Test with nox

noxfile.py

@@ -1,15 +1,15 @@
 import nox
 
 
-@nox.session(python=["3.7", "3.8", "3.9", "3.10"])
+@nox.session(python=["3.7", "3.8", "3.9", "3.10", "3.11"])
 @nox.parametrize("all_deps", [True, False])
 def pytest(session, all_deps):
     session.install(".[testing,other]" if all_deps else ".[testing]")
     session.run("coverage", "erase")
     session.run("pytest")
 
 
-@nox.session(python="3.10")
+@nox.session(python="3.11")
 def pytest_typeguard(session):
     session.install(".[testing,other]")
     session.run("coverage", "erase")

setup.py

@@ -81,6 +81,7 @@ def get_version_and_cmdclass(package_name):
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
     ],
     packages=find_packages("."),
     install_requires=install_requires,