Fix for Workflow

.github/workflows/build_and_test.yml

@@ -24,7 +24,7 @@ jobs:
                 run: python -m pip install --upgrade pip setuptools wheel
 
             -   name: Install development dependencies
-                run: pip install flake8 pytest pytest-cov
+                run: pip install flake8 pytest pytest-cov scipy
             -   name: Lint with flake8
                 run: |
                     # stop the build if there are Python syntax errors or undefined names