Python Retry Decorator

retry.py

import time
import functools

def retry(wait, retries=3, reraise=True):
    """ Decorator retries a function if an exception is raised during function
    invocation, to an arbitrary limit.

    :param wait: int, time in seconds to wait to try again
    :param retries: int, number of times to retry function. If None, unlimited
        retries.
    :param reraise: bool, re-raises the last caught exception if true
    """
    def inner(func):
        @functools.wraps(func)
        def wrapped(*args, **kwargs):
            tries = 0
            while True:
                try:
                    return func(*args, **kwargs)
                except Exception as e:
                    tries += 1
                    print "Caught: %s" % e
                    print "Sleeping %s." % wait
                    if tries <= retries or retries is None:
                        time.sleep(wait)
                    else:
                        break
            if reraise:
                raise
        return wrapped
    return inner