Added GitHub action

To be used instead of Travis

.github/workflows/build.yml

@@ -0,0 +1,47 @@
+# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+
+name: CI Build
+
+on:
+  push:
+    branches: '**'
+    tags: '**'
+  pull_request:
+    branches: '**'
+
+jobs:
+  build:
+    timeout-minutes: 10
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["2.7", "3.6", "3.7", "3.8", "3.9", "3.10"]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install flake8 pytest
+        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # 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
+    - name: Test
+      run: |
+        ./run_tests.sh
+    - name: Coveralls
+      env:
+        COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_TOKEN }}
+      run: |
+        pip install coveralls
+        coveralls