Reference: aspectlib.debug¶

aspectlib.contrib.retry Decorator that retries the call retries times if func raises exceptions.

aspectlib.contrib.retry.exponential_backoff Wait 2**N seconds.

aspectlib.contrib.retry.straight_backoff Wait 1, 2, 5 seconds.

aspectlib.contrib.retry.flat_backoff Wait 1, 2, 5, 10, 15, 30 and 60 seconds.

aspectlib.contrib.exponential_backoff(count)[source] ¶

Wait 2**N seconds.

aspectlib.contrib.flat_backoff(count)[source] ¶

Wait 1, 2, 5, 10, 15, 30 and 60 seconds. All retries after the 5th retry will wait 60 seconds.

aspectlib.contrib.retry(func=None, retries=5, backoff=None, exceptions=(<type 'exceptions.IOError'>, <type 'exceptions.OSError'>, <type 'exceptions.EOFError'>), cleanup=None, sleep=<built-in function sleep>)[source] ¶

Decorator that retries the call retries times if func raises exceptions. Can use a backoff function to sleep till next retry.

Example:

>>> should_fail = lambda foo=[1,2,3]: foo and foo.pop()
>>> @retry
... def flaky_func():
...  if should_fail():
...  raise OSError('Tough luck!')
...  print("Success!")
...
>>> flaky_func()
Success!

If it reaches the retry limit:

>>> @retry
... def bad_func():
...  raise OSError('Tough luck!')
...
>>> bad_func()
Traceback (most recent call last):
...
OSError: Tough luck!

aspectlib.contrib.straight_backoff(count)[source] ¶

Wait 1, 2, 5 seconds. All retries after the 3rd retry will wait 5*N-5 seconds.