import logging
import os
[docs]def create_logger(logger_name, log_path, log_format=None, log_level=logging.INFO):
"""Create a logger.
:param str logger_name:
:param str log_path:
:param log_format:
:param log_level:
:return: logger
To use a logger::
logger.debug("this is a debug message")
logger.info("this is a info message")
logger.warning("this is a warning message")
logger.error("this is an error message")
"""
logger = logging.getLogger(logger_name)
logger.setLevel(log_level)
if log_path is None:
handler = logging.StreamHandler()
else:
os.stat(os.path.dirname(os.path.abspath(log_path)))
handler = logging.FileHandler(log_path)
handler.setLevel(log_level)
if log_format is None:
log_format = "[%(asctime)s %(name)-13s %(levelname)s %(process)d %(thread)d " \
"%(filename)s:%(lineno)-5d] %(message)s"
formatter = logging.Formatter(log_format)
handler.setFormatter(formatter)
logger.addHandler(handler)
return logger