No handlers could be found for logger "kazoo.handlers.threading"

[zqfan]

No handlers could be found for logger "kazoo.handlers.threading"

after using logging.basicConfig(), it turns out

[2023-07-13 11:27:22,005] [ERROR] [3722:139833607571200] [threading.py:L130] Exception in worker queue thread
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/kazoo/handlers/threading.py", line 128, in _thread_worker
    func()
  File "/usr/lib/python2.7/site-packages/kazoo/handlers/threading.py", line 291, in <lambda>
    self.callback_queue.put(lambda: callback.func(*callback.args))
  File "/usr/local/services/myproject/src/zk.py", line 154, in leader_watch
    log.info("leader event: %s" % event)
TypeError: not all arguments converted during string formatting

but maybe it is better to has its own logger, just like kazoo.client does