Add back pypi github workflow

Author: joowani

.github/workflows/pypi.yaml

@@ -0,0 +1,31 @@
+name: Upload to PyPI
+on:
+  release:
+    types: [published]
+jobs:
+  upload:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Fetch complete history for all tags and branches
+      run: git fetch --prune --unshallow
+    - name: Set up Python
+      uses: actions/setup-python@v2
+      with:
+        python-version: '3.x'
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install setuptools wheel twine
+    - name: Build distribution
+      run: python setup.py sdist bdist_wheel
+    - name: Publish to PyPI Test
+      env:
+        TWINE_USERNAME: __token__
+        TWINE_PASSWORD: ${{ secrets.PYPI_TEST_TOKEN }}
+      run: twine upload --repository testpypi dist/*
+    - name: Publish to PyPI
+      env:
+        TWINE_USERNAME: __token__
+        TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }}
+      run: twine upload --repository pypi dist/*