Fix ModuleNotFoundError: No module named 'clang_tools'

Author: shenxianpeng

.github/workflows/python-app.yml

@@ -24,6 +24,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
+        pip install .
         pip install -r requirements-dev.txt
   #  - name: Lint with flake8
   #    run: |