🐛 checkout submodule

Author: chfw

.github/workflows/pythonpublish.yml

@@ -9,6 +9,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v1
+      - name: Set up Python
+        uses: actions/setup-python@v1
+        with:
+          python-version: '3.x'
       - name: Set up Python
         uses: actions/setup-python@v1
         with: