Simple Python Class Decorator

class_decorator.py

import sys
import logging

logging.basicConfig(stream=sys.stdout, level=logging.DEBUG)

class logger:
    def __init__(self, function):
        self.function = function
        self.logger = logging.getLogger(__name__)

    def __call__(self, *args, **kwargs):
        self.logger.info('{} is executing'.format(self.function.__name__))
        return self.function(*args, **kwargs)

@logger
def add(a, b):
    return a + b


if __name__ == '__main__':
    add(1, 2)