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Decorator

Last updated:
Reference:docs.python.org

Usage ​

It is good manners to use the functools' wraps.

python
from functools import wraps

Decorator declaration syntax:

python
def my_decorator(func):
  @wraps(func)
  def wrapper(*args, **kwargs):
    print('Start')
    result = func(*args, **kwargs)
    print('End')
    return result
  return wrapper

Use it with:

python
@my_decorator
def hello_world():
  print('Hello World')
  return 0