Python list.index throws exception when index not found

Question

Why does list.index throw an exception, instead of using an arbitrary value (for example, -1)? What\'s the idea behind this?

To me it looks cleaner to d

Answer 1

def GetListIndex(list, searchString):
    try:
        return list.index(searchString)

    except ValueError:
        return False

    except Exception:
        raise