封装python中的logging方便日常使用
class Logger(object):
level_mapping = {
'debug': logging.DEBUG,
'info': logging.INFO,
'warning': logging.WARNING,
'error': logging.ERROR,
'critical': logging.CRITICAL
} # 日志映射 def __init__(self, filename, level='info', when='D', backCount=3,
fmt='%(asctime)s - [line:%(lineno)d] - %(levelname)s: %(message)s'):
self.logger = logging.getLogger(filename)
format_str = logging.Formatter(fmt) # 设置格式
self.logger.setLevel(self.level_mapping.get(level)) # 设置级别
self.logger.propagate = False # 关闭logger向上级传输
stream = logging.StreamHandler() # 流形式向屏幕输出
stream.setFormatter(format_str) # 流的显示的格式
file = handlers.TimedRotatingFileHandler(filename=filename, when=when, backupCount=backCount,
encoding='utf-8') # 往文件里写入
# Calculate the real rollover interval, which is just the number of
# seconds between rollovers. Also set the filename suffix used when
# a rollover occurs. Current 'when' events supported:
# S 秒
# M 分
# H 小时
# D 天
# W 每星期（interval==0时代表星期一）
# midnight 凌晨
file.setFormatter(format_str) # 设置文件里写入的格式
self.logger.addHandler(stream) # 把对象加到logger里
self.logger.addHandler(file) # 把对象加到logger里
封装logging的类以后，通过修改init中的参数来设置日志输出级别，样式，日志生成时间间隔，最大备份数等
例如做一个小的网络监控小脚本运作日志输出：
if __name__ == '__main__':
ip = "www.google.com" # 修改自己需要ping的路径
path = os.path.join(os.path.dirname(__file__), 'pingLogs.log')
# 日志存放位置
log = Logger(filename=path)
while True:
time.sleep(1)
ping = os.system("ping %s -n 1" % ip) # ping 命令根据不同操作系统写不同ping格式 windows
# ping = os.system('ping -c 1 -W 1 %s' % ip) # ping 命令根据不同操作系统写不同ping格式 linux
if ping == 0:
log.logger.info('connection is ok and continue ping to %s' % ip)
continue
else:
log.logger.error('server is disconnected for %s check your network' % ip)
continue