Enable github actions.

.github/workflows/main.yml

@@ -0,0 +1,60 @@
+# This is a basic workflow to help you get started with Actions
+
+name: Liveandletdie Tox
+
+# Controls when the workflow will run
+on:
+  # Triggers the workflow on push or pull request events but only for the master branch
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.6, 3.7, 3.8, 3.9]
+
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+
+      - name: Setup Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python }}
+
+      - name: Setup Tox
+        run: pip install tox
+
+      - name: Run Tox
+        run: tox -e py3
+
+      - name: Install pypi/build
+        run: >-
+          python -m
+          pip install
+          build
+          --user
+
+      - name: Build a binary wheel and a source tarball
+        run: >-
+          python -m
+          build
+          --sdist
+          --wheel
+          --outdir dist/
+          .
+
+      - name: Publish to PyPI
+        # Only publish on tagged pushes when building py3.6
+        if: matrix.version == '3.6' && github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
+        uses: pypa/gh-action-pypi-publish@master
+        with:
+          user: __token__
+          password: ${{ secrets.PYPI_TOKEN }}