How would one decorate an inherited method in the child class?

Question

I\'m not quite sure how to use a decorator on an inherited method. Normally decorators are put before the definition but for an inherited function the definition is given in the

Answer 1

You don't have to use a decorator in decorator syntax. It is just a callable:

class Child(Person):
    def __init__(self, age):
        Person.__init__(self, age=age)

    gets_drink = dec(Person.gets_drink.__func__)

This adds the return value of the decorator to the child class as a method with the same name. The __func__ attribute unwraps the bound (class) method, retrieving the original function.

Note that your new method is now a regular method, not a classmethod, you'd have to re-wrap the result in a classmethod() call for that.

This works because the syntax

@decorator_expression
def function_definition():
    pass

is just syntactic sugar for:

def function_definition():
    pass
function_definition = decorator_expression(function_definition)