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import time
import functools
# Partly copy-pasted from contrib/python/retry
def retry_func(f, exceptions=Exception, tries=-1, delay=1, max_delay=None, backoff=1):
_tries, _delay = tries, delay
while _tries:
try:
return f()
except exceptions:
_tries -= 1
if not _tries:
raise
time.sleep(_delay)
_delay *= backoff
if max_delay is not None:
_delay = min(_delay, max_delay)
def retry(**retry_kwargs):
def decorator(func):
@functools.wraps(func)
def wrapper(*args, **kwargs):
return retry_func(lambda: func(*args, **kwargs), **retry_kwargs)
return wrapper
return decorator
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