Update app.py

app.py

@@ -165,6 +165,9 @@ class GradioInference:
         params:
         - link: a YouTube URL.
         """
+        if not link:
+            return "", "..."
+            
         self.yt = YouTube(link)
         return self.yt.thumbnail_url, self.yt.title
 
@@ -376,7 +379,7 @@ with block:
     gr.Examples(["https://www.youtube.com/shorts/xDNzz8yAH7I","https://www.youtube.com/watch?v=kib6uXQsxBA&pp=ygURc3RldmUgam9icyBzcGVlY2g%3D"], inputs=link)
 
     gr.Markdown("### Audio Examples")
-    gr.Examples([os.path.join(os.path.dirname(__file__),"audios/TED_ed.wav")]], inputs=audio_file)
+    gr.Examples([os.path.join(os.path.dirname(__file__),"audios/TED_ed.wav")], inputs=audio_file)
     
     gr.Markdown("### About the app:")