Update app.py

app.py

@@ -45,7 +45,7 @@ def my_custom_tool(arg1:str)-> dict: #it's import to specify the return type
         return response.data
         
     except Exception as e:
-        return f"Error fetching time for timezone'{timezone}':{str(e)}'
+        return f"Error fetching time for timezone '{timezone}': {str(e)}"
         
 
 @tool