Update app.py

app.py

@@ -1,11 +1,12 @@
 from youtube_video import download_youtube_video
 import requests
 import gradio as gr
-
+app = (video_link)
+@app.route('/')
 def app(video_link):
     video_path = download_youtube_video(video_link)
     return video_path
-@app.route('/')
+
 interface = gr.Interface(
     data = requests.get('data', ''),  # Extracting data from URL query parameter
     fn=app,