add build

.github/workflows/pythonpublish.yml

@@ -25,6 +25,9 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install setuptools wheel twine
+    - name: Build
+      run: |
+        python setup.py sdist bdist_wheel
     - name: Publish package distributions to PyPI
       uses: pypa/gh-action-pypi-publish@release/v1
     #- name: Build and publish