Update app.py

app.py

@@ -404,7 +404,7 @@ def get_download_options(session_headers=None):
     return options
 
 def download_with_retry(url, progress_callback):
-    """Enhanced download function with multiple retry strategies"""
+    """Enhanced download function with multiple retry strategies and better bot protection."""
     for attempt in range(Config.MAX_RETRIES):
         try:
             session = SessionManager.get_session()
@@ -422,7 +422,7 @@ def download_with_retry(url, progress_callback):
             
             ydl_opts['progress_hooks'] = [progress_hook]
             
-            # Actual download
+            # Attempt download with session headers and cookies
             with yt_dlp.YoutubeDL(ydl_opts) as ydl:
                 info = ydl.extract_info(url, download=True)
                 filename = ydl.prepare_filename(info)
@@ -448,6 +448,7 @@ def download_with_retry(url, progress_callback):
     
     return None, "Maximum retries reached. Please try again later."
 
+
 # UI Components
 def render_main_ui():
     col1, col2 = st.columns([2, 1])