Log to console.

def init_console_logging(conf):
    """Log to console."""
    # define a Handler which writes messages to the sys.stderr
    console = find_console_handler(logging.getLogger())
    if not console:
        console = logging.StreamHandler()
    logging_level = log_level(conf)
    console.setLevel(logging_level)

    # set a format which is simpler for console use
    formatter = _get_debug_formatter(conf)
    # tell the handler to use this format
    console.setFormatter(formatter)
    # add the handler to the root logger
    logging.getLogger().addHandler(console)
    logging.getLogger().setLevel(logging_level)
    global LOG  # pylint: disable=W0603
    LOG = logging.getLogger(__name__)