blocks|key|1114556|text|您的syslog.conf是否设置为处理facility=user？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1114557|您可以使用工具参数来设置python记录器使用的工具，如下所示：|1114558|handler+=+logging.handlers.SysLogHandler(facility=SysLogHandler.LOG_DAEMON)|code-block|syntax|javascript|1114559|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Is your syslog.conf set up to handle facility=user?

You can set the facility used by the python logger with the facility argument, something like this:

<pre><code>handler = logging.handlers.SysLogHandler(facility=SysLogHandler.LOG_DAEMON)
</code></pre>

blocks|key|1114581|text|将该行更改为：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1114582|handler+=+SysLogHandler(address='/dev/log')|code-block|syntax|javascript|1114583|这对我很管用|1114584|import+logging
import+logging.handlers

my_logger+=+logging.getLogger('MyLogger')
my_logger.setLevel(logging.DEBUG)

handler+=+logging.handlers.SysLogHandler(address+=+'/dev/log')

my_logger.addHandler(handler)

my_logger.debug('this+is+debug')
my_logger.critical('this+is+critical')|1114585|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Change the line to this:

<pre><code>handler = SysLogHandler(address='/dev/log')
</code></pre>

This works for me

<pre><code>import logging
import logging.handlers

my_logger = logging.getLogger('MyLogger')
my_logger.setLevel(logging.DEBUG)

handler = logging.handlers.SysLogHandler(address = '/dev/log')

my_logger.addHandler(handler)

my_logger.debug('this is debug')
my_logger.critical('this is critical')
</code></pre>

blocks|key|899908|text|我添加了一点额外的评论，以防对任何人有帮助，因为我发现这个交流很有用，但我需要这些额外的信息来让一切正常工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|899909|要使用SysLogHandler登录到特定工具，您需要指定工具的值。例如，假设您已经定义了：|899910|local3.*++++/var/log/mylog|offset|length|style|CODE|899911|在syslog中，您需要使用：|899912|handler+=+logging.handlers.SysLogHandler(address+=+('localhost',514),+facility=19)|899913|您还需要让syslog监听UDP，才能使用localhost而不是/dev/log。|899914|entityMap^0|0|0|0|Q|0|0|0|2A|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|T|8|@$F|U|G|V|H|I]]|9|@]|A|$]]|$1|J|3|K|5|6|7|W|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|X|8|@$F|Y|G|Z|H|I]]|9|@]|A|$]]|$1|N|3|O|5|6|7|10|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|Q|$]]

I add a little extra comment just in case it helps anyone because I found this exchange useful but needed this little extra bit of info to get it all working.

To log to a specific facility using SysLogHandler you need to specify the facility value.
Say for example that you have defined:

<code>local3.* /var/log/mylog</code>

in syslog, then you'll want to use:

<code>handler = logging.handlers.SysLogHandler(address = ('localhost',514), facility=19)</code>

and you also need to have syslog listening on UDP to use localhost instead of /dev/log.

blocks|key|1114714|text|import+syslog
syslog.openlog(ident="LOG_IDENTIFIER",logoption=syslog.LOG_PID,+facility=syslog.LOG_LOCAL0)
syslog.syslog('Log+processing+initiated...')|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1114715|上面的脚本将使用我们的自定义“LOG_IDENTIFIER”登录到LOCAL0工具...您可以将LOCAL0-7用于本地用途。|unstyled|1114716|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>import syslog
syslog.openlog(ident="LOG_IDENTIFIER",logoption=syslog.LOG_PID, facility=syslog.LOG_LOCAL0)
syslog.syslog('Log processing initiated...')
</code></pre>

the above script will log to LOCAL0 facility with our custom "LOG_IDENTIFIER"...
you can use LOCAL[0-7] for local purpose.

blocks|key|899990|text|来自https://github.com/luismartingil/per.scripts/tree/master/python_syslog|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|899991|#!/usr/bin/python
#+-*-+coding:+utf-8+-*-

'''
Implements+a+new+handler+for+the+logging+module+which+uses+the+pure+syslog+python+module.

@author:++Luis+Martin+Gil
@year:+2013
'''
import+logging
import+syslog

class+SysLogLibHandler(logging.Handler):
++++"""A+logging+handler+that+emits+messages+to+syslog.syslog."""
++++FACILITY+=+[syslog.LOG_LOCAL0,
++++++++++++++++syslog.LOG_LOCAL1,
++++++++++++++++syslog.LOG_LOCAL2,
++++++++++++++++syslog.LOG_LOCAL3,
++++++++++++++++syslog.LOG_LOCAL4,
++++++++++++++++syslog.LOG_LOCAL5,
++++++++++++++++syslog.LOG_LOCAL6,
++++++++++++++++syslog.LOG_LOCAL7]
++++def+__init__(self,+n):
++++++++"""+Pre.+(0+<=+n+<=+7)+"""
++++++++try:
++++++++++++syslog.openlog(logoption=syslog.LOG_PID,+facility=self.FACILITY[n])
++++++++except+Exception+,+err:
++++++++++++try:
++++++++++++++++syslog.openlog(syslog.LOG_PID,+self.FACILITY[n])
++++++++++++except+Exception,+err:
++++++++++++++++try:
++++++++++++++++++++syslog.openlog('my_ident',+syslog.LOG_PID,+self.FACILITY[n])
++++++++++++++++except:
++++++++++++++++++++raise
++++++++#+We+got+it
++++++++logging.Handler.__init__(self)

++++def+emit(self,+record):
++++++++syslog.syslog(self.format(record))

if+__name__+==+'__main__':
++++"""+Lets+play+with+the+log+class.+"""
++++#+Some+variables+we+need
++++_id+=+'myproj_v2.0'
++++logStr+=+'debug'
++++logFacilityLocalN+=+1

++++#+Defines+a+logging+level+and+logging+format+based+on+a+given+string+key.
++++LOG_ATTR+=+{'debug':+(logging.DEBUG,
++++++++++++++++++++++++++_id+%2B+'+%25(levelname)-9s+%25(name)-15s+%25(threadName)-14s+%2B%25(lineno)-4d+%25(message)s'),
++++++++++++++++'info':+(logging.INFO,
+++++++++++++++++++++++++_id+%2B+'+%25(levelname)-9s+%25(message)s'),
++++++++++++++++'warning':+(logging.WARNING,
++++++++++++++++++++++++++++_id+%2B+'+%25(levelname)-9s+%25(message)s'),
++++++++++++++++'error':+(logging.ERROR,
++++++++++++++++++++++++++_id+%2B+'+%25(levelname)-9s+%25(message)s'),
++++++++++++++++'critical':+(logging.CRITICAL,
+++++++++++++++++++++++++++++_id+%2B+'+%25(levelname)-9s+%25(message)s')}
++++loglevel,+logformat+=+LOG_ATTR[logStr]

++++#+Configuring+the+logger
++++logger+=+logging.getLogger()
++++logger.setLevel(loglevel)

++++#+Clearing+previous+logs
++++logger.handlers+=+[]

++++#+Setting+formaters+and+adding+handlers.
++++formatter+=+logging.Formatter(logformat)
++++handlers+=+[]
++++handlers.append(SysLogLibHandler(logFacilityLocalN))
++++for+h+in+handlers:
++++++++h.setFormatter(formatter)
++++++++logger.addHandler(h)

++++#+Yep!
++++logging.debug('test+debug')
++++logging.info('test+info')
++++logging.warning('test+warning')
++++logging.error('test+error')
++++logging.critical('test+critical')|code-block|syntax|javascript|899992|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/luismartingil/per.scripts/tree/master/python_syslog^0|2|1Y|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

From <a href="https://github.com/luismartingil/per.scripts/tree/master/python_syslog" rel="noreferrer">https://github.com/luismartingil/per.scripts/tree/master/python_syslog</a>

<pre><code>#!/usr/bin/python
# -*- coding: utf-8 -*-

'''
Implements a new handler for the logging module which uses the pure syslog python module.

@author: Luis Martin Gil
@year: 2013
'''
import logging
import syslog

class SysLogLibHandler(logging.Handler):
 """A logging handler that emits messages to syslog.syslog."""
 FACILITY = [syslog.LOG_LOCAL0,
 syslog.LOG_LOCAL1,
 syslog.LOG_LOCAL2,
 syslog.LOG_LOCAL3,
 syslog.LOG_LOCAL4,
 syslog.LOG_LOCAL5,
 syslog.LOG_LOCAL6,
 syslog.LOG_LOCAL7]
 def __init__(self, n):
 """ Pre. (0 &lt;= n &lt;= 7) """
 try:
 syslog.openlog(logoption=syslog.LOG_PID, facility=self.FACILITY[n])
 except Exception , err:
 try:
 syslog.openlog(syslog.LOG_PID, self.FACILITY[n])
 except Exception, err:
 try:
 syslog.openlog('my_ident', syslog.LOG_PID, self.FACILITY[n])
 except:
 raise
 # We got it
 logging.Handler.__init__(self)

 def emit(self, record):
 syslog.syslog(self.format(record))

if __name__ == '__main__':
 """ Lets play with the log class. """
 # Some variables we need
 _id = 'myproj_v2.0'
 logStr = 'debug'
 logFacilityLocalN = 1

 # Defines a logging level and logging format based on a given string key.
 LOG_ATTR = {'debug': (logging.DEBUG,
 _id + ' %(levelname)-9s %(name)-15s %(threadName)-14s +%(lineno)-4d %(message)s'),
 'info': (logging.INFO,
 _id + ' %(levelname)-9s %(message)s'),
 'warning': (logging.WARNING,
 _id + ' %(levelname)-9s %(message)s'),
 'error': (logging.ERROR,
 _id + ' %(levelname)-9s %(message)s'),
 'critical': (logging.CRITICAL,
 _id + ' %(levelname)-9s %(message)s')}
 loglevel, logformat = LOG_ATTR[logStr]

 # Configuring the logger
 logger = logging.getLogger()
 logger.setLevel(loglevel)

 # Clearing previous logs
 logger.handlers = []

 # Setting formaters and adding handlers.
 formatter = logging.Formatter(logformat)
 handlers = []
 handlers.append(SysLogLibHandler(logFacilityLocalN))
 for h in handlers:
 h.setFormatter(formatter)
 logger.addHandler(h)

 # Yep!
 logging.debug('test debug')
 logging.info('test info')
 logging.warning('test warning')
 logging.error('test error')
 logging.critical('test critical')
</code></pre>

blocks|key|1114790|text|将这里和其他地方的东西拼凑在一起，这就是我想出的在unbuntu12.04和centOS6上工作的方法|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1114791|在/etc/rsyslog.d/中创建一个以.conf结尾的文件，并添加以下文本|offset|length|style|CODE|1114792|local6.*++++++++/var/log/my-logfile|code-block|syntax|javascript|1114793|重新启动rsyslog，重新加载似乎不适用于新的日志文件。也许它只重新加载现有的conf文件？|1114794|sudo+restart+rsyslog|1114795|然后，您可以使用此测试程序来确保它确实有效。|1114796|import+logging,+sys
from+logging+import+config

LOGGING+=+{
++++'version':+1,
++++'disable_existing_loggers':+False,
++++'formatters':+{
++++++++'verbose':+{
++++++++++++'format':+'%25(levelname)s+%25(module)s+P%25(process)d+T%25(thread)d+%25(message)s'
++++++++++++},
++++++++},
++++'handlers':+{
++++++++'stdout':+{
++++++++++++'class':+'logging.StreamHandler',
++++++++++++'stream':+sys.stdout,
++++++++++++'formatter':+'verbose',
++++++++++++},
++++++++'sys-logger6':+{
++++++++++++'class':+'logging.handlers.SysLogHandler',
++++++++++++'address':+'/dev/log',
++++++++++++'facility':+"local6",
++++++++++++'formatter':+'verbose',
++++++++++++},
++++++++},
++++'loggers':+{
++++++++'my-logger':+{
++++++++++++'handlers':+['sys-logger6','stdout'],
++++++++++++'level':+logging.DEBUG,
++++++++++++'propagate':+True,
++++++++++++},
++++++++}
++++}

config.dictConfig(LOGGING)


logger+=+logging.getLogger("my-logger")

logger.debug("Debug")
logger.info("Info")
logger.warn("Warn")
logger.error("Error")
logger.critical("Critical")|1114797|entityMap^0|0|1|F|0|0|4|7|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@$D|Y|E|Z|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|10|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|11|8|@$D|12|E|13|F|G]]|9|@]|A|$]]|$1|O|3|P|5|J|7|14|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|15|8|@]|9|@]|A|$]]|$1|S|3|T|5|J|7|16|8|@]|9|@]|A|$K|L]]|$1|U|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|V|$]]

Piecing things together from here and other places, this is what I came up with that works on unbuntu 12.04 and centOS6

Create an file in <code>/etc/rsyslog.d/</code> that ends in .conf and add the following text

<pre><code>local6.* /var/log/my-logfile
</code></pre>

Restart <code>rsyslog</code>, reloading did NOT seem to work for the new log files. Maybe it only reloads existing conf files?

<pre><code>sudo restart rsyslog
</code></pre>

Then you can use this test program to make sure it actually works.

<pre><code>import logging, sys
from logging import config

LOGGING = {
 'version': 1,
 'disable_existing_loggers': False,
 'formatters': {
 'verbose': {
 'format': '%(levelname)s %(module)s P%(process)d T%(thread)d %(message)s'
 },
 },
 'handlers': {
 'stdout': {
 'class': 'logging.StreamHandler',
 'stream': sys.stdout,
 'formatter': 'verbose',
 },
 'sys-logger6': {
 'class': 'logging.handlers.SysLogHandler',
 'address': '/dev/log',
 'facility': "local6",
 'formatter': 'verbose',
 },
 },
 'loggers': {
 'my-logger': {
 'handlers': ['sys-logger6','stdout'],
 'level': logging.DEBUG,
 'propagate': True,
 },
 }
 }

config.dictConfig(LOGGING)


logger = logging.getLogger("my-logger")

logger.debug("Debug")
logger.info("Info")
logger.warn("Warn")
logger.error("Error")
logger.critical("Critical")
</code></pre>

blocks|key|900108|text|您还可以添加文件处理程序或轮换文件处理程序，以将日志发送到本地文件：http://docs.python.org/2/library/logging.handlers.html|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|900109|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.python.org/2/library/logging.handlers.html^0|Y|1I|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

You can also add a file handler or rotating file handler to send your logs to a local file:
<a href="http://docs.python.org/2/library/logging.handlers.html" rel="nofollow">http://docs.python.org/2/library/logging.handlers.html</a>

blocks|key|1114937|text|我发现the+syslog+module使得获取您所描述的基本日志记录行为变得非常容易：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1114938|import+syslog
syslog.syslog("This+is+a+test+message")
syslog.syslog(syslog.LOG_INFO,+"Test+message+at+INFO+priority")|code-block|syntax|javascript|1114939|你也可以做其他的事情，但据我所知，即使是前两行也能得到你想要的东西。|1114940|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.python.org/3/library/syslog.html^0|3|H|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|C|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

I found <a href="https://docs.python.org/3/library/syslog.html" rel="noreferrer">the syslog module</a> to make it quite easy to get the basic logging behavior you describe:

<pre><code>import syslog
syslog.syslog("This is a test message")
syslog.syslog(syslog.LOG_INFO, "Test message at INFO priority")
</code></pre>

There are other things you could do, too, but even just the first two lines of that will get you what you've asked for as I understand it.

blocks|key|900222|text|以下是3.2及更高版本推荐的yaml+dictConfig方式。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|900223|在日志cfg.yml中|offset|length|style|CODE|900224|version:+1
disable_existing_loggers:+true

formatters:
++++default:
++++++++format:+"[%25(process)d]+%25(name)s(%25(funcName)s:%25(lineno)s)+-+%25(levelname)s:+%25(message)s"

handlers:
++++syslog:
++++++++class:+logging.handlers.SysLogHandler
++++++++level:+DEBUG
++++++++formatter:+default
++++++++address:+/dev/log
++++++++facility:+local0

++++rotating_file:
++++++++class:+logging.handlers.RotatingFileHandler
++++++++level:+DEBUG
++++++++formatter:+default
++++++++filename:+rotating.log
++++++++maxBytes:+10485760+#+10MB
++++++++backupCount:+20
++++++++encoding:+utf8

root:
++++level:+DEBUG
++++handlers:+[syslog,+rotating_file]
++++propogate:+yes

loggers:
++++main:
++++++++level:+DEBUG
++++++++handlers:+[syslog,+rotating_file]
++++++++propogate:+yes|code-block|syntax|javascript|900225|使用以下命令加载配置：|900226|log_config+=+yaml.safe_load(open('cfg.yml'))
logging.config.dictConfig(log_config)|900227|配置了syslog和一个直接文件。请注意，/dev/log是特定于操作系统的。|900228|entityMap^0|0|3|7|0|0|0|0|L|8|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@$D|W|E|X|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|Y|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|Z|8|@]|9|@]|A|$]]|$1|O|3|P|5|J|7|10|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|11|8|@$D|12|E|13|F|G]]|9|@]|A|$]]|$1|S|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|T|$]]

Here's the yaml dictConfig way recommended for 3.2 &amp; later.

In log <code>cfg.yml</code>:

<pre><code>version: 1
disable_existing_loggers: true

formatters:
 default:
 format: "[%(process)d] %(name)s(%(funcName)s:%(lineno)s) - %(levelname)s: %(message)s"

handlers:
 syslog:
 class: logging.handlers.SysLogHandler
 level: DEBUG
 formatter: default
 address: /dev/log
 facility: local0

 rotating_file:
 class: logging.handlers.RotatingFileHandler
 level: DEBUG
 formatter: default
 filename: rotating.log
 maxBytes: 10485760 # 10MB
 backupCount: 20
 encoding: utf8

root:
 level: DEBUG
 handlers: [syslog, rotating_file]
 propogate: yes

loggers:
 main:
 level: DEBUG
 handlers: [syslog, rotating_file]
 propogate: yes
</code></pre>

Load the config using:

<pre><code>log_config = yaml.safe_load(open('cfg.yml'))
logging.config.dictConfig(log_config)
</code></pre>

Configured both syslog &amp; a direct file. Note that the <code>/dev/log</code> is OS specific.

blocks|key|1115031|text|我把它固定在我的笔记本上。rsyslog服务未侦听套接字服务。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1115032|我在/etc/rsyslog.conf文件中配置了下面这一行，并解决了这个问题：|offset|length|style|CODE|1115033|$SystemLogSocketName++/dev/log|1115034|entityMap^0|0|2|H|0|0|U|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@$D|N|E|O|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@$D|Q|E|R|F|G]]|9|@]|A|$]]|$1|J|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|K|$]]

I fix it on my notebook. The rsyslog service did not listen on socket service. 

I config this line bellow in <code>/etc/rsyslog.conf</code> file and solved the problem:

<code>$SystemLogSocketName /dev/log</code>

I can't get my head around Python's <code>logging</code> module. My needs are very simple: I just want to log everything to syslog. After reading documentation I came up with this simple test script:

<pre><code>import logging
import logging.handlers

my_logger = logging.getLogger('MyLogger')
my_logger.setLevel(logging.DEBUG)

handler = logging.handlers.SysLogHandler()

my_logger.addHandler(handler)

my_logger.debug('this is debug')
my_logger.critical('this is critical')
</code></pre>

But this script does not produce any log records in syslog. What's wrong?

How to configure logging to syslog in Python?

日志文件

Python

我搞不懂Python的logging模块。我的需求非常简单:我只想将所有内容都记录到syslog中。在阅读文档之后，我想出了这个简单的测试脚本：import loggingimport logging.handlersmy_logger = logging.getLogger('MyLogger')my_logger....

问如何在Python中配置日志记录到syslog？
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问如何在Python中配置日志记录到syslog？EN

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问如何在Python中配置日志记录到syslog？
EN