Create a simple CI that tests on multiple python versions

.github/workflows/tox.yml

@@ -0,0 +1,25 @@
+name: Test with tox
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.8', '3.9', '3.10', '3.11']
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v4
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install tox tox-gh-actions
+    - name: Test with tox
+      run: tox

tox.ini

@@ -10,3 +10,10 @@ deps =
     pytest>=6
 commands =
     pytest {tty:--color=yes} {posargs}
+
+# Provide a mapping between tox envs and github actions python envs
+[gh-actions]
+python =
+    3.9: py39
+    3.10: py310
+    3.11: py311