Add a GitHub Action to build + Upload black to PyPI (#1848)

* Add a GitHub Action to build + Upload black to PyPI
- Build a wheel + sdist
- Upload via twine using token stored in GitHub secrets

.github/workflows/lint.yml

@@ -12,17 +12,14 @@ jobs:
       github.repository
 
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        python-version: [3.7]
 
     steps:
       - uses: actions/checkout@v2
 
-      - name: Set up Python ${{ matrix.python-version }}
+      - name: Set up Python
         uses: actions/setup-python@v2
         with:
-          python-version: ${{ matrix.python-version }}
+          python-version: 3.7
 
       - name: Install dependencies
         run: |

.github/workflows/pypi_upload.yml

@@ -0,0 +1,31 @@
+name: pypi_upload
+
+on:
+  release:
+    types: created
+
+jobs:
+  build:
+    name: PyPI Upload
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+
+      - name: Install latest pip, setuptools, twine + wheel
+        run: |
+          python -m pip install --upgrade pip setuptools twine wheel
+
+      - name: Build wheels
+        run: |
+          python setup.py bdist_wheel
+          python setup.py sdist
+
+      - name: Upload to PyPI via Twine
+        env:
+          TWINE_PASSWORD: ${{ secrets.PYPI_TOKEN }}
+        run: |
+          twine upload --verbose -u '__token__' dist/*

.pre-commit-config.yaml

@@ -13,7 +13,7 @@ repos:
         types_or: [python, pyi]
 
   - repo: https://gitlab.com/pycqa/flake8
-    rev: 3.8.1
+    rev: 3.8.4
     hooks:
       - id: flake8
         additional_dependencies: [flake8-bugbear]