Add github workflow

Author: mikemanger

.github/workflows/tests.yml

@@ -0,0 +1,23 @@
+name: Python package
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: pip install tox tox-gh
+    - name: Test with tox
+      run: tox --skip-missing-interpreters