0A decorator takes in a function, adds some functionality and returns it.
Functions and methods are called callable as they can be called.
Any object which implements the special method __call__() is termed callable.
A decorator is a callable that returns a callable.
A decorator takes in a function, adds some functionality and returns it.
def make_pretty(func):
def inner():
print("I got decorated")
func()
return inner
def ordinary():
print("I am ordinary")
ordinary() #outputs "I am ordinary"
# let's decorate this ordinary function
pretty = make_pretty(ordinary)
pretty()
#outputs:
I got decorated
I am ordinary
#make_pretty() is a decorator.
#pretty = make_pretty(ordinary)
#The function ordinary() got decorated and the returned function was given the name pretty.
