Update app.py

app.py

@@ -4,6 +4,8 @@ os.system("pip uninstall -y gradio")
 os.system("git clone https://github.com/gradio-app/gradio.git gradio")
 os.system("cd gradio && git fetch && git checkout flagging-spaces && pip install -e .")
 os.system("cd gradio/frontend && npm install && npm run build")
+import site
+site.main()
 ### Real code is below
 ### -------------------------
 import gradio as gr