Test python 3.11

.github/workflows/test.yml

@@ -6,7 +6,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ['3.7', '3.8', '3.9', '3.10', pypy-3.7, pypy-3.8, pypy-3.9]
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', pypy-3.7, pypy-3.8, pypy-3.9]
         exclude:
           - os: windows-latest
             python-version: pypy-3.7

setup.py

@@ -67,6 +67,7 @@ setup(
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: Implementation :: PyPy",
         "Topic :: Office/Business :: Groupware"])