Let's try going to 3.11.

Author: nhoad

.github/workflows/ci.yml

@@ -15,10 +15,10 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v3.0.2
 
-      - name: Set up Python 3.8
+      - name: Set up Python 3.11
         uses: actions/setup-python@v4.2.0
         with:
-          python-version: 3.8
+          python-version: 3.11
 
       - name: Install base and testing dependencies
         run: |

tox.ini

@@ -1,6 +1,6 @@
 [tox]
-; this is shorthand for py38,py38-mypy,py38-flake8.
-envlist = py38{,-mypy,-flake8}
+; this is shorthand for py311,py311-mypy,py311-flake8.
+envlist = py311{,-mypy,-flake8}
 
 ; run pytest to run the tests
 [testenv]
@@ -11,7 +11,7 @@ commands =
     pytest test_unused_arguments.py -m "not release"
 
 ; run mypy for type checking
-[testenv:py38-mypy]
+[testenv:py311-mypy]
 deps =
     mypy
 commands=
@@ -21,7 +21,7 @@ commands=
         --show-error-codes
 
 ; run flake8 for basic linting
-[testenv:py38-flake8]
+[testenv:py311-flake8]
 deps =
     flake8
 commands=