Update app.py

extract computation

app.py

@@ -18,16 +18,20 @@ def my_custom_tool(arg1:int, arg2:int, arg3:str)-> str: #it's import to specify
     """
     match arg3:
         case "*":
-            return  f"The result is: '{arg1 * arg2}'"
+            result = arg1 * arg2
+            return  f"The result is: '{result}'"
         case "/":
             if(arg2!=0):
-                return f"The result is: '{arg1 / arg2}'"
+                result = arg1 / arg2
+                return f"The result is: '{result}'"
             else:
                 return f"Error: Division by zero not possible"
         case "+":
-            return f"The result is: '{arg1 + arg2}'"
+            result = arg1 + arg2
+            return f"The result is: '{result}'"
         case "-":
-            return f"The result is: '{arg1 - arg2}'"
+            result = arg1 - arg2
+            return f"The result is: '{result}'"
         case _:
             return f"Error: '{arg3}' is an unsupported operation, Supported operations are +,-,*,/"