in version v4.0.0, there is a bug: after create lock_renewal_thread thread, set demon = True,the word is wrong, not "demon", but "daemon",source code as follows
self._lock_renewal_thread.demon = True
the right code as follows
self._lock_renewal_thread.daemon = True
in version v4.0.0, there is a bug: after create lock_renewal_thread thread, set demon = True,the word is wrong, not "demon", but "daemon",source code as follows
self._lock_renewal_thread.demon = True
the right code as follows
self._lock_renewal_thread.daemon = True