add linting

.github/workflows/build-test.yaml

@@ -20,7 +20,7 @@ jobs:
       - name: Install Python Dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install -r requirements.txt
+          pip install -r requirements.txt -e .[dev]
       - name: Lint with pylint
         run: |
           pylint --disable=R,C,W1203 --py3k .