ENH: Add formal support for Python 3.11

Author: BvB93

.github/workflows/pythonpackage.yml

@@ -21,15 +21,18 @@ jobs:
             fail-fast: False
             matrix:
                 os: [ubuntu-latest, macos-latest, windows-latest]
-                python-version: ["3.6", "3.7", "3.8", "3.9", "3.10"]
+                python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
                 special: ['']
                 include:
+                    -   os: ubuntu-20.04
+                        special: ''
+                        python-version: "3.6"
                     -   os: ubuntu-latest
                         special: '; pre-release'
-                        python-version: "3.10"
+                        python-version: "3.11"
                     -   os: ubuntu-latest
                         special: '; no-optional'
-                        python-version: "3.10"
+                        python-version: "3.11"
 
         steps:
             -   uses: actions/checkout@v3

README.rst

@@ -21,6 +21,8 @@
     :target: https://docs.python.org/3.9/
 .. image:: https://img.shields.io/badge/python-3.10-blue.svg
     :target: https://docs.python.org/3.10/
+.. image:: https://img.shields.io/badge/python-3.11-blue.svg
+    :target: https://docs.python.org/3.11/
 
 ############
 AssertionLib

setup.py

@@ -62,6 +62,7 @@
         'python-3-8',
         'python-3-9',
         'python-3-10',
+        'python-3-11',
     ],
     classifiers=[
         'Development Status :: 5 - Production/Stable',
@@ -76,6 +77,7 @@
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
+        'Programming Language :: Python :: 3.11',
         'Topic :: Software Development :: Libraries',
         'Topic :: Software Development :: Testing',
         'Typing :: Typed',