Logging question

Gabor Urban urbangabo at gmail.com
Wed Sep 23 01:36:47 EDT 2009


Hi guys,

I have embarassing problem using the logging module. I would like to
encapsulate the creation and setting up  of the logger in a class, but
it does not seem working.

Here are my relevant parts of the code:

--
import sys
import logging

class LogClass:
    def __init__(self, fileName, loggerName = 'classLog'):
        self.Logger = logging.getLogger(loggerName)
        self.traceName = fileName
        handler = logging.FileHandler(self.traceName,'a')
        formatter = logging.Formatter("%(name)s %(asctime)s
%(filename)s %(lineno)d %(levelname)s %(message)s")
        handler.setFormatter(formatter)
        self.Logger.addHandler(handler)
        self.Handler = handler

    def closeLog(self):
        self.Handler.flush()
        self.Handler.close()

    def fetchLogger(self):
        return self.Logger

if __name__ == "__main__":
    name = 'testlog.trc'
    classLog = LogClass(name)
    logger = classLog.fetchLogger()
    logger.info("Created")
    logger.debug("Test")
    logger.info("Created .. ")
    logger.debug("Test data")
    classLog.closeLog()

--

The trace file is created properly but contains no lines at all. If I
put the code directly in __main__, it works fine.

What did I miss? Any ideas are wellcome.

Gabor
-- 
Linux: Choice of a GNU Generation



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