Onionr/src/etc/waitforsetvar.py

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from __future__ import annotations
from typing import Union, Generic
from gevent import sleep
def wait_for_set_var(obj, attribute, sleep_seconds: Union[int, float]=0):
"""Wait for an object to get an attribute with an optional sleep time"""
while not hasattr(obj, attribute):
if hasattr(obj, attribute): break
if sleep_seconds > 0: sleep(sleep_seconds)