Merge pull request #26 from shawnzhu/ci

Enable Python CI

.github/workflows/ci.yaml

@@ -0,0 +1,24 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version:
+        - '3.7'
+        - '3.8'
+        - '3.9'
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Upgrade pip version
+      run: |
+        python -m pip install -U pip
+    - run: pip install -r requirements.txt
+    - run: pip install pytest assertpy
+    - run: pytest