Update app.py

app.py

@@ -58,11 +58,7 @@ if submit_button:
 
     pred_book = []
     for rr in rrscore_index:
-        name = df['Book Name'][topk[rr]]
-        author = df['Book Author'][topk[rr]]
-        if author == None:
-            author = "could not identify the author"
-        pred_book.append(f"{name} by {author}")
+        pred_book.append(f"{df['Book Name'][topk[rr]]} by {df['Book Author'][topk[rr]]}")
 
     finalpred = []
     pred_book.reverse()