Update python-app.yml

Author: priyagupta108

.github/workflows/python-app.yml

@@ -15,7 +15,7 @@ jobs:
     - name: Setup Python
       uses: actions/setup-python@v5
       with:
-       python-version: '3.14.0a1'
+       python-version: '3.7.0-b2'
     - name: Display modified PATH
       run: echo $PATH
     - name: Prepend custom path