update deployment

Author: cdiener

.github/workflows/pythonpackage.yml

@@ -65,6 +65,8 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install setuptools wheel twine
+      - name: Build package
+        run: python setup.py sdist bdist_wheel
       - name: Publish a Python distribution to PyPI
         uses: pypa/gh-action-pypi-publish@release/v1
         with: