Add action for pypi publishing

Author: sthapa

.github/workflows/pypi.yml

@@ -0,0 +1,35 @@
+# This workflow will upload a Python Package using Twine when a release is created
+# For more information see: https://help.github.com/en/actions/language-and-framework-guides/using-python-with-github-actions#publishing-to-package-registries
+
+name: Upload Python Package
+
+on:
+  release:
+    types: [released, prereleased]
+
+jobs:
+  deploy:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python
+      uses: actions/setup-python@v2
+      with:
+        python-version: '3.7'
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip 
+        pip install setuptools wheel twine build
+    - name: Build the servicex_cli wheel
+      env:
+        servicex_version: ${{ github.ref }}
+      run: |        
+        python -m build --sdist --wheel
+    - name: Publish servicex_cli to PyPI
+      uses: pypa/gh-action-pypi-publish@v1.3.1
+      with:
+        user: __token__
+        password: ${{ secrets.pypi_password_servicex }}
+        repository_url: https://test.pypi.org/legacy/