Update app.py

app.py

@@ -1,16 +1,14 @@
 #### ignore these lines -- just needed to install and build a particular branch
 import os
-os.system("git clone https://github.com/gradio-app/gradio.git")
-os.system("cd gradio")
-os.system("git fetch")
-os.system("git checkout flagging-spaces")
+os.system("git clone https://github.com/gradio-app/gradio.git gradio")
+os.system("cd gradio && git fetch && git checkout flagging-spaces")
 os.system("pip uninstall -y gradio")
 os.system("pip install -e gradio")
 os.system("cd frontend")
 os.system("npm install")
 os.system("npm run build")
 ### Real code is below
-
+### -------------------------
 import gradio as gr
 
 HF_TOKEN = os.getenv('HF_TOKEN')