How to fix 'NoneType' object is not callable while returning wrapper function?

Question

def func_needs_decorator():
    print("I wanna a decorator urgently")
    


def new_decorator(original_funct):
    
    def wrapper_funct():
        print("Some extra code before the original function")
        original_funct()
        print("Some extra code after the original funciton")
    return wrapper_funct()     

func_needs_decorator = new_decorator(func_needs_decorator)
print(func_needs_decorator())

>>>'NoneType' object is not callable

I couldn't understand why I'm getting that error.Why am I getting that error?How can i fix it?Can you tell me the procces of this code?How does it work?

Answer 1

You are calling wrapper_funct and returning its return value instead of returning wrapper_funct itself.

return wrapper_funct()

should be

return wrapper_funct