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Python Logging Handler

I want to add the userdefined variable to the log format using ContextFiltering. My code is as follows:

import logging
import logging.handlers
CMDID='TEST'

class ContextFilter(logging.Filter):
  def filter(self,record):
    record.CMDID=CMDID
    return True

FORMAT='%(asctime)s [%(CMDID)s] - %(message)s'
logger=logging.getLogger("Test")
fh=logger.handlers.RotatingFileHandler("testing.log",maxBytes=1024,backupCount=5)
fh.setlevel(logging.DEBUG)
fh.setFormatter(logging.Formatter(FORMAT))
logger.addHandler(fh)
logger.addFilter(ContextFilter())
logger.warning("WTH")

When I do not use filehandler and just use basicConfig for formatting, then the code works fine. But when I add a rotating file handler, I get an error

Traceback (most recent call last):
Line 16, in <module>
fh=logger.handlers.RotatingFileHandler("testing.log",maxBytes=1024,backupCount=5)
AttributeError: 'list' object has no attribute 'RotatingFileHandler'

Now I also tried to use the LoggerAdapters class for this, but it also gives rise to strange errors which, upon further investigation, I discovered that there might be some problems with its documentation.

Can someone help me in solving this problem and offer me a way to effectively add user-defined contextual information in my logger using this FileHandler.

P.S. , python,

+4
1

logger.handlers. logging.handlers. ( setlevel, setlevel -).

:

import logging
import logging.handlers
CMDID='TEST'

class ContextFilter(logging.Filter):
  def filter(self,record):
    record.CMDID=CMDID
    return True

FORMAT='%(asctime)s [%(CMDID)s] - %(message)s'
logger=logging.getLogger("Test")
fh=logging.handlers.RotatingFileHandler("testing.log",maxBytes=1024,backupCount=5)
fh.setLevel(logging.DEBUG)
fh.setFormatter(logging.Formatter(FORMAT))
logger.addHandler(fh)
logger.addFilter(ContextFilter())
logger.warning("WTH")

: logger (logger) , logger.handlers atrribute. ( logging.handlers.RotatingFileHandler()) (fh) (logger.addHandler). , :

In [4]: logger.handlers
Out[4]: [<logging.handlers.RotatingFileHandler at 0x3e85b70>]
+10

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