Add github actions setup

.github/workflows/main.yml

+name: Python package
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python: [2.7, 3.6, 3.7, 3.8]
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python }}
+      - name: Install Tox and any other packages
+        run: pip install tox
+      - name: Run Tox
+        # Run tox using the version of Python in `PATH`
+        run: tox -e py

tox.ini

 [tox]
-envlist = py27, py33, py34, py35, py36, py37, py38
+envlist = py27, py36, py37, py38
 
 [testenv]
 deps =