Tenacity

jd/tenacity is a retrying library for Python.

Usage⚑

Try a maximum of n times with exponential wait time between attempts⚑

from tenacity import retry, stop_after_attempt, wait_exponential

@retry(stop=stop_after_attempt(3), wait=wait_exponential(multiplier=0.1))
def somefunction():
  raise Exception

The function will be retried a maximum of 3 times, waiting 0.1 s, 0.2 s and 0.4 s between each attempt respectively.

Catch only some kind of errors⚑

Use @retry(retry=retry_if_exception_type(IOError)).

Several types of exceptions can be combined as follows:

@retry(retry=(retry_if_exception_type(IOError) | retry_if_exception_type(TimeoutError)))