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log.py
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# encoding: utf-8
__author__ = 'zhanghe'
import logging
class Log:
"""
调试日志工具类
"""
def __init__(self):
self.log_level = logging.DEBUG
self.log_format = '%(asctime)s %(filename)s[line:%(lineno)d] %(levelname)s %(message)s'
self.log_datefmt = '%a, %d %b %Y %H:%M:%S'
self.log_filename = 'myapp.log'
self.log_filemode = 'w'
self.memory_usage = '0.00M'
def log_config(self):
"""
加载配置信息
"""
logging.basicConfig(
level=self.log_level,
format=self.log_format,
datefmt=self.log_datefmt,
filename=self.log_filename,
filemode=self.log_filemode
)
def get_memory_usage(self):
"""
获取当前进程内存使用情况(单位M)
"""
import os
# 获取当前脚本的进程ID
pid = os.getpid()
# 获取当前脚本占用的内存
cmd = 'ps -p %s -o rss=' % pid
output = os.popen(cmd)
result = output.read()
if result == '':
memory_usage_value = 0
else:
memory_usage_value = int(result.strip())
memory_usage_format = memory_usage_value/1024.0
print '内存使用%.2fM' % memory_usage_format
self.memory_usage = '%.2fM' % memory_usage_format
@staticmethod
def debug(msg):
logging.debug(msg)
@staticmethod
def info(msg):
logging.info(msg)
@staticmethod
def warning(msg):
logging.warning(msg)
if __name__ == '__main__':
# 实例化，修改日志文件名称，加载新配置
xxx = Log()
xxx.log_filename = 'myapp2.log'
xxx.log_config()
# 测试
xxx.debug('This is debug message')
xxx.info('This is info message')
xxx.warning('This is warning message')
'''
logging.basicConfig函数各参数:
filename: 指定日志文件名
filemode: 和file函数意义相同，指定日志文件的打开模式，'w'或'a'
format: 指定输出的格式和内容，format可以输出很多有用信息，如上例所示:
%(levelno)s: 打印日志级别的数值
%(levelname)s: 打印日志级别名称
%(pathname)s: 打印当前执行程序的路径，其实就是sys.argv[0]
%(filename)s: 打印当前执行程序名
%(funcName)s: 打印日志的当前函数
%(lineno)d: 打印日志的当前行号
%(asctime)s: 打印日志的时间
%(thread)d: 打印线程ID
%(threadName)s: 打印线程名称
%(process)d: 打印进程ID
%(message)s: 打印日志信息
datefmt: 指定时间格式，同time.strftime()
level: 设置日志级别，默认为logging.WARNING
stream: 指定将日志的输出流，可以指定输出到sys.stderr,sys.stdout或者文件，默认输出到sys.stderr，当stream和filename同时指定时，stream被忽略
'''