Check 3.11 support

.github/workflows/check.yml

@@ -12,7 +12,7 @@ concurrency:
 jobs:
   test:
     name: test with CPython ${{ matrix.py }}
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
       matrix:
@@ -66,7 +66,7 @@ jobs:
 
   coverage:
     name: Combine coverage
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     needs: test
     steps:
       - uses: actions/checkout@v3
@@ -98,7 +98,7 @@ jobs:
 
   check:
     name: tox env ${{ matrix.tox_env }}
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
       matrix:
@@ -124,7 +124,7 @@ jobs:
   publish:
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
     needs: [check, coverage]
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - name: Setup python to build package
         uses: actions/setup-python@v4
@@ -138,7 +138,7 @@ jobs:
       - name: Build sdist and wheel
         run: python -m build -s -w . -o dist
       - name: Publish to PyPi
-        uses: pypa/gh-action-pypi-publish@master
+        uses: pypa/gh-action-pypi-publish@v1.5.1
         with:
           skip_existing: true
           user: __token__

tox.ini

@@ -1,6 +1,7 @@
 [tox]
 envlist =
     fix
+    py311
     py310
     py39
     py38
@@ -71,6 +72,7 @@ commands =
     coverage html -d {toxworkdir}/htmlcov
     diff-cover --compare-branch {env:DIFF_AGAINST:origin/main} {toxworkdir}/coverage.xml
 depends =
+    py311
     py310
     py39
     py38