Update app.py

app.py

@@ -34,7 +34,7 @@ def get_current_time_in_timezone(timezone: str) -> str:
         return f"Error fetching time for timezone '{timezone}': {str(e)}"
 
 @tool
-def calculator(num_1: float, num_2: float, sign: str) -> float|str:
+def calculator(num_1: float, num_2: float, sign: str) -> str:
     """ A tool tha receives two numbers and a sign and execute the sign operation over that two numbers.
     Args:
         num_1: first number to be computed
@@ -42,14 +42,14 @@ def calculator(num_1: float, num_2: float, sign: str) -> float|str:
         sign: the operation sign
     """
     if sign == '+':
-        return num_1+num_2
+        return f"The answer is {num_1+num_2}"
     elif sign == '-':
-        return num_1-num_2
+        return f"The answer is {num_1-num_2}"
     elif sign == '*':
-        return num_1*num_2
+        return f"The answer is {num_1*num_2}"
     elif sign == '/':
         if num_2 != 0:
-            return num_1/num_2
+            return f"The answer is {num_1/num_2}"
         else:
             return "You can't make a division by 0!"
     else: