Update app.py

app.py

@@ -31,7 +31,7 @@ def my_custom_tool(text:str, arg2:int)-> str: #it's import to specify the return
         topic_words  = ' '.join(topic_words)
 
     except Exception as e:
-        return f"Error fetching the topic of the text}"
+        return f"Error fetching the topic of the text"
     
     return "Here is the topic of the text: ", topic_words