Add Python 3.11 to builds

Author: miguelgrinberg

.github/workflows/tests.yml

@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python: ['3.7', '3.8', '3.9', '3.10', 'pypy-3.8']
+        python: ['3.7', '3.8', '3.9', '3.10', '3.11', 'pypy-3.8']
         exclude:
           # pypy3 currently fails to run on Windows
           - os: windows-latest

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist=flake8,py37,py38,py39,py310,pypy3,docs
+envlist=flake8,py37,py38,py39,py310,py311,pypy3,docs
 skip_missing_interpreters=True
 
 [gh-actions]
@@ -8,6 +8,7 @@ python =
     3.8: py38
     3.9: py39
     3.10: py310
+    3.11: py311
     pypy-3: pypy3
 
 [testenv]