snippets.txt

class decorator_class(object):

    def __init__(self, original_function):
        self.original_function = original_function

    def __call__(self, *args, **kwargs):
        print('call method before {}'.format(self.original_function.__name__))
        self.original_function(*args, **kwargs)


# Practical Examples

def my_logger(orig_func):
    import logging
    logging.basicConfig(filename='{}.log'.format(orig_func.__name__), level=logging.INFO)

    def wrapper(*args, **kwargs):
        logging.info(
            'Ran with args: {}, and kwargs: {}'.format(args, kwargs))
        return orig_func(*args, **kwargs)

    return wrapper


def my_timer(orig_func):
    import time

    def wrapper(*args, **kwargs):
        t1 = time.time()
        result = orig_func(*args, **kwargs)
        t2 = time.time() - t1
        print('{} ran in: {} sec'.format(orig_func.__name__, t2))
        return result

    return wrapper

import time