Test build for pythons 3.6 through 3.9

Author: benjaminran

.github/workflows/pr.yaml

@@ -6,12 +6,21 @@ jobs:
   run-tests:
     name: Run tests
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.6, 3.7, 3.8, 3.9]
 
     steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-python@v2
+    - uses: actions/checkout@v1
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
       with:
-        python-version: 3.7
+        python-version: ${{ matrix.python-version }}
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install tox tox-gh-actions
 
     - name: Run tests
       run: make tests

Makefile

@@ -11,7 +11,7 @@ develop:
 
 tests:
 	# skipping flake8 for now
-	pip3 install --upgrade --quiet tox && tox -e py3
+	pip3 install --upgrade --quiet tox && tox -p 4 -e py36,py37,py38,py39
 
 docs:
 	echo skipping temporarily...

tox.ini

@@ -1,5 +1,6 @@
 [tox]
-envlist = py3,flake8,docs
+envlist = py{36,37,38,39},flake8,docs
+skip_missing_interpreters = true
 
 [testenv]
 setenv = HOSTNAME=hostname