diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
new file mode 100644
index 0000000..bda2ebc
--- /dev/null
+++ b/.github/workflows/pythonpackage.yml
@@ -0,0 +1,46 @@
+name: Python package
+
+on: [push, pull_request]
+
+jobs:
+  build:
+
+    runs-on: ${{ matrix.os }}
+    strategy:
+      max-parallel: 4
+      fail-fast: false
+      matrix:
+        python-version: [3.5, 3.6, 3.7]
+        os: [ubuntu-latest, macOS-latest]
+
+    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
+        pip install -r requirements.txt
+        # Install capnproto
+        curl -O https://capnproto.org/capnproto-c++-0.7.0.tar.gz
+        tar zxf capnproto-c++-0.7.0.tar.gz
+        cd capnproto-c++-0.7.0
+        ./configure
+        make -j check
+        sudo make install
+    - name: Build pycapnp and install
+      run: |
+        pip install .
+    - name: Lint with flake8
+      run: |
+        pip install flake8
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics --exclude benchmark
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics --exclude benchmark
+    - name: Test with pytest
+      run: |
+        pip install pytest
+        pytest