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logger.py
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import logging
import sys
import os
# 日志级别关系映射
level_dict = {
'debug': logging.DEBUG,
'info': logging.INFO,
'warning': logging.WARNING,
'error': logging.ERROR,
'crit': logging.CRITICAL
}
LOG_PATH = "run.log"
# LOG_FMT = "%(asctime)s - %(filename)s[line:%(lineno)d] - %(levelname)s: %(message)s"
LOG_FMT = "%(asctime)s - %(levelname)s: %(message)s"
DATE_FMT = "%m/%d/%Y %H:%M:%S %p"
LOG_LEVEL = "debug"
# ENABLE_LOG = true
TO_CONSOLE = True
TO_FILE = True
loggers = dict()
def get_logger(name=None):
global loggers
if name is None:
name = __name__
if loggers.get(name):
return loggers.get(name)
# 设置日志输出格式
fmt = logging.Formatter(fmt=LOG_FMT,
datefmt=DATE_FMT)
# 创建一个名为filename的日志器
logger = logging.getLogger(LOG_PATH)
# 设置日志级别
logger.setLevel(level_dict[LOG_LEVEL])
if TO_CONSOLE:
# 获取控制台输出的处理器
console_handler = logging.StreamHandler(sys.stdout) # 默认是sys.stderr
# 设置控制台处理器的等级为DEBUG
console_handler.setLevel(level_dict[LOG_LEVEL])
# 设置控制台输出日志的格式
console_handler.setFormatter(fmt)
logger.addHandler(console_handler)
if TO_FILE:
# 获取路径的目录
log_dir = os.path.dirname(LOG_PATH)
if os.path.isdir(log_dir) and not os.path.exists(log_dir):
# 目录不存在则创建
os.makedirs(log_dir)
# 获取文件输出的处理器
file_handler = logging.FileHandler(LOG_PATH, encoding='utf-8', mode='w')
# 设置文件输出处理器的等级为INFO
file_handler.setLevel(level_dict[LOG_LEVEL])
# 设置文件输出日志的格式
file_handler.setFormatter(fmt)
logger.addHandler(file_handler)
loggers[name] = logger
return logger
logger = get_logger()