Add Python 3.11 tests

Author: andrivet

.github/workflows/tests.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python-version: ['2.7', '3.5', '3.6', '3.7', '3.8', '3.9', '3.10']
+        python-version: ['2.7', '3.5', '3.6', '3.7', '3.8', '3.9', '3.10', '3.11']
 
     steps:
     - uses: actions/checkout@v3

setup.py

@@ -60,6 +60,7 @@ def read(*names, **kwargs):
         '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 :: Utilities',

tox.ini

@@ -4,7 +4,7 @@
 envlist =
     clean,
     check,
-    {py27,py35,py36,py38,py39,py310},
+    {py27,py35,py36,py38,py39,py310,py311},
     report,
     docs
 
@@ -17,6 +17,7 @@ python =
   3.8: py38
   3.9: py39
   3.10: py310
+  3.11: py311
 
 [testenv]
 setenv =