flag and test 3.12 support

.github/workflows/pythonpackage.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       max-parallel: 5
       matrix:
-        python-version: [3.7, 3.8, 3.9, "3.10", "3.11"]
+        python-version: [3.7, 3.8, 3.9, "3.10", "3.11", "3.12"]
 
     steps:
     - uses: actions/checkout@v1

azure-devops/setup.py

@@ -30,6 +30,7 @@ CLASSIFIERS = [
     'Programming Language :: Python :: 3.9',
     'Programming Language :: Python :: 3.10',
     'Programming Language :: Python :: 3.11',
+    'Programming Language :: Python :: 3.12',
     'License :: OSI Approved :: MIT License',
 ]