my_decorator.py

from time import sleep
from functools import wraps
import logging

logging.basicConfig()
log = logging.getLogger("retry")

def retry(f):
	@wraps(f)
	def wrapped_f(*args, **kwargs):
		MAX_ATTEMPTS = 5
		for attempt in range(1, MAX_ATTEMPTS + 1):
			try:
				return f(*args, **kwargs)
			except:
				log.exception("Attempt %s/%s failed : %s",attempt,	MAX_ATTEMPTS,(args, kwargs))
			sleep(10 * attempt)
		log.critical("All %s attempts failed : %s",	MAX_ATTEMPTS,(args, kwargs))
	return wrapped_f

counter = 0

@retry
def save_to_database(arg):
	print "Write to a database or make a network call or etc."
	print "This will be automatically retried if exception is thrown."
	global counter
	counter += 1
	# This will throw an exception in the first call
	# And will work fine in the second call (i.e. a retry)
	if counter < 2:
		raise ValueError(arg)


if __name__ == '__main__':
	save_to_database("Some bad value")