Update app.py

app.py

@@ -94,7 +94,7 @@ def play_preview_deezer(track: str, artist:str) -> str:
             # Play the track
             print("Playing preview: ", first_track['preview'])
             set_audio_url(first_track['preview'])
-            return f'{first_track['title']} by {first_track['artist']['name']} is playing.'
+            return f'{first_track["title"]} by {first_track["artist"]["name"]} is playing.'
         else:
             raise ValueError("No tracks found.")
     else: