Add GitHub workflow python publishing (flyteorg#49)

.github/workflows/pythonpublish.yaml

@@ -0,0 +1,26 @@
+name: Upload Python Package
+
+on:
+  release:
+    types: [created]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python
+        uses: actions/setup-python@v1
+        with:
+          python-version: '3.x'
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install setuptools wheel twine
+      - name: Build and publish
+        env:
+          TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
+          TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
+        run: |
+          python setup.py sdist bdist_wheel
+          twine upload dist/*

.travis.yml

@@ -14,8 +14,3 @@ jobs:
       name: unit tests
       install: make install
       script: make test_unit
-    - if: tag IS present AND fork = false
-      stage: release
-      name: release Python package
-      install: skip
-      script: make release