Update app.py

app.py

@@ -13,21 +13,21 @@ def estimate_marathon_time(half_time: str) -> str:
     """
     Estimates a full marathon time based on a given half-marathon time.
 
-    Args:
-        half_time (str): The recorded half-marathon time in the format HH:MM.
+    Parameters:
+        half_time (str): The recorded half-marathon time in the format 'HH:MM'.
 
     Returns:
-        str: The estimated full marathon time in HH:MM format.
+        str: The estimated full marathon time in 'HH:MM' format.
     """
     try:
         hours, minutes = map(int, half_time.split(":"))
         total_minutes = hours * 60 + minutes
-        estimated_full_time = total_minutes * 2.1  # Common factor for estimation
+        estimated_full_time = total_minutes * 2.1  # Common estimation factor
         full_hours = int(estimated_full_time // 60)
         full_minutes = int(estimated_full_time % 60)
         return f"{full_hours}:{full_minutes:02d}"
-    except:
-        return "Invalid half-marathon time format. Please use HH:MM."
+    except ValueError:
+        return "Invalid half-marathon time format. Please use 'HH:MM'."
 
 @tool
 def check_missing_info() -> str: