在类内部使用装饰器并调用对象

Question

I have a class with a function called decorator_func and another function called name_me . How do I decorate the name_me function with the other function from the class?

Here is what I tried so far:

 class Test : def decorator_func(fun): def disp_fun(name): return ("hello there ,") + fun(name) return disp_fun @decorator_func def name_me(name): return name print name_me("abhi") obj = Test() obj.decorator_func() 

The description of the code is mentioned in the image given below . Anaconda jyupiter lab is used to execute the code

How to Remove this error?

Answer 1

The problem with your code is, that you decorate the name_me function with a method from the Test class.

You can either move the decorator_func from the Test class, then your code would look like this:

def decorator_func(fun):
    def disp_fun(name):
        return ("hello there, ") + fun(name)
    return disp_fun

@decorator_func
def name_me(name):
  return name

print name_me("abhi")

Our you create an instance of the Test class and decorate the name_me function with the method of the instance, like this:

class Test :
    def decorator_func(self, fun):
        def disp_fun(name):
            return ("hello there, ") + fun(name)
        return disp_fun

# Create a instance of the Test class
obj = Test()

@obj.decorator_func
def name_me(name):
    return name

print name_me("abhi")