daemon.DaemonContext

[Rebelo]

i get : IOError: [Errno 9] Bad file descriptor
when i have logging and using daemon.DaemonContext()
i tried passing :
fh = logging.handlers.TimedRotatingFileHandler(LOG_FILENAME, 'midnight', 
encoding='utf-8')
with :
context = daemon.DaemonContext()
context.files_preserve=[fh]

but no good
what am i doing wrong?