Update main.yml

.github/workflows/main.yml

@@ -0,0 +1,33 @@
+name: Build and test
+
+on: [push]
+
+jobs:
+  build:
+    strategy:
+      max-parallel: 4
+      matrix:
+        platform: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: [2.7, 3.5, 3.6, 3.7]
+    runs-on: ${{ matrix.platform }}
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v1
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip==18.1 setuptools
+        pip install -r requirements.txt
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip==18.1 setuptools
+        pip install -r requirements.txt
+    - name: Compile and build sdist
+      run: |
+        python setup.py build_ext --inplace
+        python setup.py sdist --formats=gztar
+    - name: Test with pytest
+      run: python -m pytest tests