C, Py27 and Windows do not mix

Author: mobiusklein

.github/workflows/pythonpackage.yaml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest]
-        python-version: ['2.7', '3.5', '3.6', '3.7', '3.8', '3.9']
+        python-version: ['3.5', '3.6', '3.7', '3.8', '3.9']
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}