Logging handlers issue

[luzb3l1t0]

Hi All,

I hope this is the good place for this, otherwise my apologies.
I am trying to enabling looging on netmiko library using other handlers than StreamHandler and FileHandler, for example RotatingFileHandler. But I cannot make it work.
So I start to trying with one of the handlers that I know that work, in this case StreamHandler.
When i set the log by this way, it work:

formatter = '%(levelname)s %(name)s %(message)s'
logging.basicConfig(level=logging.DEBUG, format=formatter)
logger = logging.getLogger()

but when i use the handler in this way, it does not work

handler_list = []
formatter = logging.Formatter('%(levelname)s %(name)s %(message)s'')
handler = logging.StreamHandler()
handler.setLevel(logging.DEBUG)
handler.setFormatter(formatter)
handler_list.append(handler)
logging.basicConfig(handlers=handler_list)
logger = logging.getLogger()

The weird thing is that if I set the logging by the first way, and then add a handler to the root looger, for example RotatingFileHandler, the logging works with both handlers.
Any idea?
Thanks in advance.