loggin

[Ajay]

hi!

in my web app. i log debug messages to a file. however, sometimes the
messages appear more than once even though the code in which the log
statement appears gets executes only once
i have a utilities.py file which defines a getLogger() method as follows

logger = logging.getLogger('../logs/umapp')
hdlr = logging.FileHandler('../logs/umapp.log')
os.system("chmod 755 ../logs/umapp.log")
formatter = logging.Formatter('%(asctime)s %(levelname)s %(message)s')
hdlr.setFormatter(formatter)
logger.addHandler(hdlr)
logger.setLevel(logging.INFO)
return logger

all my cgi scripts the the start make the call - logger =
utilities.getLogger()

the scripts then log debug messages during different stages of their
execution.

however, some of these debug messages appear 2 or 3 times on the log file.
i have verified that the particular code block in which the log statement
is present is executed only once

any ideas

thanks
cheers

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[Vinay Sajip]

Ajay <ab******@mail.usyd.edu.au> wrote in message news:<ma**************************************@pyt hon.org>...

hi!

in my web app. i log debug messages to a file. however, sometimes the
messages appear more than once even though the code in which the log
statement appears gets executes only once
i have a utilities.py file which defines a getLogger() method as follows

logger = logging.getLogger('../logs/umapp')
hdlr = logging.FileHandler('../logs/umapp.log')
os.system("chmod 755 ../logs/umapp.log")
formatter = logging.Formatter('%(asctime)s %(levelname)s %(message)s')
hdlr.setFormatter(formatter)
logger.addHandler(hdlr)
logger.setLevel(logging.INFO)
return logger

all my cgi scripts the the start make the call - logger =
utilities.getLogger()

the scripts then log debug messages during different stages of their
execution.

however, some of these debug messages appear 2 or 3 times on the log file.
i have verified that the particular code block in which the log statement
is present is executed only once

any ideas

Make sure you don't add the same handler several times to a given
logger or to the root. If you do this, the logging messages get
handled (=> displayed) multiple times.

Regards

Vinay Sajip