[英]Why non-root logger is not writing any log to log file?
I want to write into two log files by using two loggers with following .ini config file: 我想通过使用带有以下.ini配置文件的两个记录器来写入两个日志文件:
[loggers]
keys=root,teja
[handlers]
keys=fileHandler,tejaFileHandler
[formatters]
keys=simpleFormatter
[logger_teja]
level=DEBUG
handlers=tejaFileHandler
qualname='tejaLogger'
[logger_root]
level=DEBUG
handlers=fileHandler
[handler_fileHandler]
class=logging.FileHandler
level=DEBUG
formatter=simpleFormatter
args=("error.log", "a")
[handler_tejaFileHandler]
class=logging.FileHandler
level=DEBUG
formatter=simpleFormatter
args=("teja.log", "a")
[formatter_simpleFormatter]
format=%(asctime)s - %(name)s - %(levelname)s - %(message)s
And I am using this configuration in my python code as 我在我的python代码中使用此配置
import logging
import logging.config
# load my module
import my_module
# load the logging configuration
logging.config.fileConfig('logging.ini')
logger1=logging.getLogger('root')
logger1.info('Hi how are you?')
logger2=logging.getLogger('teja')
logger2.debug('checking teja logger?')
I see that logs are written to error.log file whereas no logs are written to teja.log file. 我看到日志被写入error.log文件,而没有日志被写入teja.log文件。 Please correct me if I am doing something silly... 如果我做傻事,请纠正我。
You named your logger object 'tejaLogger'
: 您将记录器对象命名为'tejaLogger'
:
[logger_teja]
level=DEBUG
handlers=tejaFileHandler
qualname='tejaLogger'
# ^^^^^^^^^^^^
Note that the quotes are part of the name . 请注意, 引号是名称的一部分 。
but your test code picks up teja
instead: 但是您的测试代码改为使用teja
:
logger2=logging.getLogger('teja')
Rename one or the other; 重命名一个或另一个; although you could use logging.getLogger("'tejaLogger'")
you probably want to drop the quotes and / or rename the logger to what you expected it to be: 尽管您可以使用logging.getLogger("'tejaLogger'")
您可能想删除引号和/或将记录logging.getLogger("'tejaLogger'")
命名为您期望的样子:
[logger_teja]
level=DEBUG
handlers=tejaFileHandler
qualname=teja
It turns out that the problem is on this line (in the [logger_teja]
section): 事实证明,问题出在这一行(在[logger_teja]
部分中):
qualname='tejaLogger'
If you add this to your code (it prints all the current loggers): 如果将此代码添加到代码中(它将打印所有当前的记录器):
print(logging.Logger.manager.loggerDict)
You get: 你得到:
{"'tejaLogger'": <logging.Logger object at 0x7f89631170b8>}
Which means that your logger is called literally 'tejaLogger'
. 这意味着您的记录器从字面上称为'tejaLogger'
。 Using: 使用:
logger2=logging.getLogger("'tejaLogger'")`
Actually works fine. 实际工作正常。 Either do that, or change qualname='tejaLogger'
to qualname=teja
. 要么这样做,要么将qualname='tejaLogger'
更改为qualname=teja
。
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