Update Build_Release.yml

.github/workflows/Build_Release.yml

@@ -12,6 +12,25 @@ jobs:
     name: Upload Release Asset
     runs-on: ubuntu-latest
     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 with pytest
+        run: |
+            pytest PyCTBN/tests/>
       - name: Checkout code
             uses: actions/checkout@v2
       - name: Install dependencies