Python日志记录多个文件
我对Python日志模块有一个问题,我不确定我是否在做一些愚蠢的事情,但我有两个Python脚本,一个(master.py)调用另一个(slave.py)。它们都记录到单独的日志文件中,但是调用的第二个脚本(slave.py)似乎是递归记录的 有人知道我做错了什么吗 这是我的密码:Python日志记录多个文件,python,logging,Python,Logging,我对Python日志模块有一个问题,我不确定我是否在做一些愚蠢的事情,但我有两个Python脚本,一个(master.py)调用另一个(slave.py)。它们都记录到单独的日志文件中,但是调用的第二个脚本(slave.py)似乎是递归记录的 有人知道我做错了什么吗 这是我的密码: # master.py import sys import logging import slave masterLog = logging.getLogger('master') masterLog.setLe
# master.py
import sys
import logging
import slave
masterLog = logging.getLogger('master')
masterLog.setLevel(logging.DEBUG)
masterHandler = logging.FileHandler('master.log')
formatter = logging.Formatter('%(levelname)s: %(asctime)s %(funcName)s(%(lineno)d) -- %(message)s', datefmt = '%Y-%m-%d %H:%M:%S')
masterHandler.setFormatter(formatter)
masterLog.addHandler(masterHandler)
masterLog.info('This is masterLog running on master.py')
print 'master.py has: ', len(masterLog.handlers), 'handlers'
for i in range(1,6):
masterLog.info('Running slave %s' % i)
slave.runMain()
以下是输出:
master.py has: 1 handlers
slave.py has: 1 handlers
slave.py has: 2 handlers
slave.py has: 3 handlers
slave.py has: 4 handlers
slave.py has: 5 handlers
以及master.log:
INFO: 2012-02-29 13:26:49 <module>(13) -- This is masterLog running on master.py
INFO: 2012-02-29 13:26:49 <module>(17) -- Running slave 1
INFO: 2012-02-29 13:26:49 <module>(17) -- Running slave 2
INFO: 2012-02-29 13:26:49 <module>(17) -- Running slave 3
INFO: 2012-02-29 13:26:49 <module>(17) -- Running slave 4
INFO: 2012-02-29 13:26:49 <module>(17) -- Running slave 5
从属脚本似乎在每次调用时都添加一个新的文件处理程序。slave.log文件中应该只有5个条目,但每次调用slave.py时,记录器都会输出到每个文件处理程序
谢谢,
Jaklogging.getLogger([name])
总是返回同一个对象(全局对象),每次调用runMain时都对其调用addHandler
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import logging
import logging.handlers
from logging.config import dictConfig
logger = logging.getLogger(__name__)
DEFAULT_LOGGING = {
'version': 1,
'disable_existing_loggers': False,
}
def configure_logging(logfile_path):
"""
Initialize logging defaults for Project.
:param logfile_path: logfile used to the logfile
:type logfile_path: string
This function does:
- Assign INFO and DEBUG level to logger file handler and console handler
"""
dictConfig(DEFAULT_LOGGING)
default_formatter = logging.Formatter(
"[%(asctime)s] [%(levelname)s] [%(name)s] [%(funcName)s():%(lineno)s] [PID:%(process)d TID:%(thread)d] %(message)s",
"%d/%m/%Y %H:%M:%S")
file_handler = logging.handlers.RotatingFileHandler(logfile_path, maxBytes=10485760,backupCount=300, encoding='utf-8')
file_handler.setLevel(logging.INFO)
console_handler = logging.StreamHandler()
console_handler.setLevel(logging.DEBUG)
file_handler.setFormatter(default_formatter)
console_handler.setFormatter(default_formatter)
logging.root.setLevel(logging.DEBUG)
logging.root.addHandler(file_handler)
logging.root.addHandler(console_handler)
[31/10/2015 22:00:33] [DEBUG] [yourmodulename] [yourfunction_name():9] [PID:61314 TID:140735248744448] this is logger infomation from hello module
我认为您最好在main函数中配置日志记录格式。slaveLog是一个全局对象,您每次都在runMain()中调用addHandler。谢谢,在添加fileHandler之前,我使用了“if not len(slaveLog.handlers):”来解决这个问题。我(错误地)认为日志模块不会多次添加同一个文件处理程序。感谢您的回复:-)我以为日志模块不会添加一个已经存在的处理程序?因为每次调用时它都是相同的[name],我不明白为什么它总是添加另一个处理程序。我甚至可以运行removeHandler()函数,但它不会删除任何内容。您应该只在一个位置配置日志记录(添加处理程序、设置级别等)。请参阅本文:谢谢,我现在有了它:-)slave.py有时会被自己作为脚本调用,因此在这种情况下,我需要在slave.py中配置日志记录。但是master.py也会多次调用slave.py,在这种情况下,日志记录已经配置好了,因此slave.py会多次添加相同的fileHandler,从而导致错误。
INFO: 2012-02-29 13:26:49 runMain(13) -- This is slaveLog running on slave.py
INFO: 2012-02-29 13:26:49 runMain(13) -- This is slaveLog running on slave.py
INFO: 2012-02-29 13:26:49 runMain(13) -- This is slaveLog running on slave.py
INFO: 2012-02-29 13:26:49 runMain(13) -- This is slaveLog running on slave.py
INFO: 2012-02-29 13:26:49 runMain(13) -- This is slaveLog running on slave.py
INFO: 2012-02-29 13:26:49 runMain(13) -- This is slaveLog running on slave.py
INFO: 2012-02-29 13:26:49 runMain(13) -- This is slaveLog running on slave.py
INFO: 2012-02-29 13:26:49 runMain(13) -- This is slaveLog running on slave.py
INFO: 2012-02-29 13:26:49 runMain(13) -- This is slaveLog running on slave.py
INFO: 2012-02-29 13:26:49 runMain(13) -- This is slaveLog running on slave.py
INFO: 2012-02-29 13:26:49 runMain(13) -- This is slaveLog running on slave.py
INFO: 2012-02-29 13:26:49 runMain(13) -- This is slaveLog running on slave.py
INFO: 2012-02-29 13:26:49 runMain(13) -- This is slaveLog running on slave.py
INFO: 2012-02-29 13:26:49 runMain(13) -- This is slaveLog running on slave.py
INFO: 2012-02-29 13:26:49 runMain(13) -- This is slaveLog running on slave.py
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import logging
import logging.handlers
from logging.config import dictConfig
logger = logging.getLogger(__name__)
DEFAULT_LOGGING = {
'version': 1,
'disable_existing_loggers': False,
}
def configure_logging(logfile_path):
"""
Initialize logging defaults for Project.
:param logfile_path: logfile used to the logfile
:type logfile_path: string
This function does:
- Assign INFO and DEBUG level to logger file handler and console handler
"""
dictConfig(DEFAULT_LOGGING)
default_formatter = logging.Formatter(
"[%(asctime)s] [%(levelname)s] [%(name)s] [%(funcName)s():%(lineno)s] [PID:%(process)d TID:%(thread)d] %(message)s",
"%d/%m/%Y %H:%M:%S")
file_handler = logging.handlers.RotatingFileHandler(logfile_path, maxBytes=10485760,backupCount=300, encoding='utf-8')
file_handler.setLevel(logging.INFO)
console_handler = logging.StreamHandler()
console_handler.setLevel(logging.DEBUG)
file_handler.setFormatter(default_formatter)
console_handler.setFormatter(default_formatter)
logging.root.setLevel(logging.DEBUG)
logging.root.addHandler(file_handler)
logging.root.addHandler(console_handler)
[31/10/2015 22:00:33] [DEBUG] [yourmodulename] [yourfunction_name():9] [PID:61314 TID:140735248744448] this is logger infomation from hello module