# Python program to illustrate
# closures
import logging
logging.basicConfig(filename='example.log', level=logging.INFO)
def logger(func):
def log_func(*args):
logging.info(
'Running "{}" with arguments {}'.format(func.__name__, args))
print(func(*args))
# Necessary for closure to work (returning WITHOUT parenthesis)
return log_func
def add(x, y):
return x+y
def sub(x, y):
return x-y
add_logger = logger(add)
sub_logger = logger(sub)
add_logger(3, 3)
add_logger(4, 5)
sub_logger(10, 5)
sub_logger(20, 10)
输出:
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