Write a program for a small decorator function, which wraps a small printing code to any given function code example
Example 1: decorators in python
'pass function which we want to decorate in decorator callable object'
def our_decorator(func):
def wrapper(x):
if x%2==0:
return func(x)
else:
raise Exception("number should be even")
return wrapper
@ our_decorator
def func(x):
print(x,"is even")
func(2)
func(1)
' if you do not want to use @'
func=our_decorator(func)
func(2)
Example 2: python decorator
def logging(f):
def decorator_function(*args, **kwargs):
print('executing '+f.__name__)
return f(*args, **kwargs)
return decorator_function
@logging
def hello_world():
print('Hello World')