import logging import sys from logging import Formatter from logging.handlers import RotatingFileHandler, SysLogHandler from typing import Any, Dict, List from freqtrade import OperationalException logger = logging.getLogger(__name__) def _set_loggers(verbosity: int = 0) -> None: """ Set the logging level for third party libraries :return: None """ logging.getLogger('requests').setLevel( logging.INFO if verbosity <= 1 else logging.DEBUG ) logging.getLogger("urllib3").setLevel( logging.INFO if verbosity <= 1 else logging.DEBUG ) logging.getLogger('ccxt.base.exchange').setLevel( logging.INFO if verbosity <= 2 else logging.DEBUG ) logging.getLogger('telegram').setLevel(logging.INFO) def setup_logging(config: Dict[str, Any]) -> None: """ Process -v/--verbose, --logfile options """ # Log level verbosity = config['verbosity'] # Log to stdout, not stderr log_handlers: List[logging.Handler] = [logging.StreamHandler(sys.stdout)] logfile = config.get('logfile') if logfile: s = logfile.split(':') if s[0] == 'syslog': # Address can be either a string (socket filename) for Unix domain socket or # a tuple (hostname, port) for UDP socket. # Address can be omitted (i.e. simple 'syslog' used as the value of # config['logfilename']), which defaults to '/dev/log', applicable for most # of the systems. address = (s[1], int(s[2])) if len(s) > 2 else s[1] if len(s) > 1 else '/dev/log' handler = SysLogHandler(address=address) # No datetime field for logging into syslog, to allow syslog # to perform reduction of repeating messages if this is set in the # syslog config. The messages should be equal for this. handler.setFormatter(Formatter('%(name)s - %(levelname)s - %(message)s')) log_handlers.append(handler) elif s[0] == 'journald': try: from systemd.journal import JournaldLogHandler except ImportError: raise OperationalException("You need the systemd python package be installed in " "order to use logging to journald.") handler = JournaldLogHandler() # No datetime field for logging into journald, to allow syslog # to perform reduction of repeating messages if this is set in the # syslog config. The messages should be equal for this. handler.setFormatter(Formatter('%(name)s - %(levelname)s - %(message)s')) log_handlers.append(handler) else: log_handlers.append(RotatingFileHandler(logfile, maxBytes=1024 * 1024, # 1Mb backupCount=10)) logging.basicConfig( level=logging.INFO if verbosity < 1 else logging.DEBUG, format='%(asctime)s - %(name)s - %(levelname)s - %(message)s', handlers=log_handlers ) _set_loggers(verbosity) logger.info('Verbosity set to %s', verbosity)