在python 3中使用日志模块时出现的UTF-8编码问题

import logging

logger = logging.getLogger(__name__)

logger.setLevel(logging.DEBUG)

file_handler = logging.FileHandler('log.txt', encoding='utf-8')

formatter = logging.Formatter('%(asctime)s - %(levelname)s - %(message)s', encoding='utf-8')

file_handler.setFormatter(formatter)

logger.addHandler(file_handler)

logger.debug('Debug message')
logger.info('Info message')
logger.warning('Warning message')
logger.error('Error message')
logger.critical('Critical message')