How to use the glances.logger.logger function in Glances

def init(self):
        """Init the connection to the Riemann server."""
        if not self.export_enable:
            return None
        try:
            client = bernhard.Client(host=self.host, port=self.port)
            return client
        except Exception as e:
            logger.critical("Connection to Riemann failed : %s " % e)
            return None

def init(self):
        """Init the connection to the RESTful server."""
        if not self.export_enable:
            return None
        # Build the RESTful URL where the stats will be posted
        url = '{}://{}:{}{}'.format(self.protocol,
                                    self.host,
                                    self.port,
                                    self.path)
        logger.info(
            "Stats will be exported to the RESTful endpoint {}".format(url))
        return url

def init(self):
        """Init the connection to the CouchDB server."""
        if not self.export_enable:
            return None

        server_uri = 'tcp://{}:{}'.format(self.host, self.port)

        try:
            self.context = zmq.Context()
            publisher = self.context.socket(zmq.PUB)
            publisher.bind(server_uri)
        except Exception as e:
            logger.critical("Cannot connect to ZeroMQ server %s (%s)" % (server_uri, e))
            sys.exit(2)
        else:
            logger.info("Connected to the ZeroMQ server %s" % server_uri)

        return publisher

def load(self, config):
        """Load the password from the configuration file."""
        password_dict = {}

        if config is None:
            logger.warning("No configuration file available. Cannot load password list.")
        elif not config.has_section(self._section):
            logger.warning("No [%s] section in the configuration file. Cannot load password list." % self._section)
        else:
            logger.info("Start reading the [%s] section in the configuration file" % self._section)

            password_dict = dict(config.items(self._section))

            # Password list loaded
            logger.info("%s password(s) loaded from the configuration file" % len(password_dict))
            logger.debug("Password dictionary: %s" % password_dict)

        return password_dict

def _web_scan(self, web):
        """Scan the  Web/URL (dict) and update the status key."""
        try:
            req = requests.head(web['url'],
                                allow_redirects=True,
                                verify=web['ssl_verify'],
                                proxies=web['proxies'],
                                timeout=web['timeout'])
        except Exception as e:
            logger.debug(e)
            web['status'] = 'Error'
            web['elapsed'] = 0
        else:
            web['status'] = req.status_code
            web['elapsed'] = req.elapsed.total_seconds()
        return web

def export(self, name, columns, points):
        """Write the points to the ZeroMQ server."""
        logger.debug("Export {} stats to ZeroMQ".format(name))

        # Create DB input
        data = dict(zip(columns, points))

        # Do not publish empty stats
        if data == {}:
            return False

        # Glances envelopes the stats in a publish message with two frames:
        # - First frame containing the following prefix (STRING)
        # - Second frame with the Glances plugin name (STRING)
        # - Third frame with the Glances plugin stats (JSON)
        message = [b(self.prefix),
                   b(name),
                   asbytes(json.dumps(data))]

def wrapper(*args, **kw):
            counter = Counter()
            ret = fct(*args, **kw)
            duration = counter.get()
            logger.debug("%s %s %s return %s in %s seconds" % (
                args[0].__class__.__name__,
                args[0].__class__.__module__[len('glances_'):],
                fct.__name__, ret,
                duration))
            return ret
        return wrapper

def __display_server(self, server):
        """
        Connect and display the given server
        """
        # Display the Glances client for the selected server
        logger.debug("Selected server: {}".format(server))

        # Connection can take time
        # Display a popup
        self.screen.display_popup(
            'Connect to {}:{}'.format(server['name'], server['port']), duration=1)

        # A password is needed to access to the server's stats
        if server['password'] is None:
            # First of all, check if a password is available in the [passwords] section
            clear_password = self.password.get_password(server['name'])
            if (clear_password is None or self.get_servers_list()
                    [self.screen.active_server]['status'] == 'PROTECTED'):
                # Else, the password should be enter by the user
                # Display a popup to enter password
                clear_password = self.screen.display_popup(
                    'Password needed for {}: '.format(server['name']), is_input=True)