Jed Parsons wrote:
> I'm using the logging module for the first time. I'm using it from
> within Zope Extensions.
>
> My problem is that, for every event logged, the logger is producing
> multiple identical entries with the timestamp the same down to the
> millisecond.
>
> Is this something I'm doing wrong?
>
> Log snippet:
>
> 2006-03-30 16:20:14,173 INFO: Login: Jed Parsons
> 2006-03-30 16:20:14,173 INFO: Login: Jed Parsons
> 2006-03-30 16:20:14,173 INFO: Login: Jed Parsons
> 2006-03-30 16:20:14,173 INFO: Login: Jed Parsons
> 2006-03-30 16:20:14,173 INFO: Login: Jed Parsons
> 2006-03-30 16:20:14,173 INFO: Login: Jed Parsons
> 2006-03-30 16:20:14,173 INFO: Login: Jed Parsons
> 2006-03-30 16:20:14,173 INFO: Login: Jed Parsons
>
> I would like only one of the above lines in my log file; not all those
> copies.
>
> I'm using this simple logging setup at the top of a zope Extension module:
>
> import logging
> # basicConfig for python 2.3
> logging.basicConfig()
> _logger = logging.getLogger("login")
> _logger.setLevel(logging.DEBUG)
> _handler = logging.FileHandler(LOG_ROOT, 'login.log'))
> _formatter = logging.Formatter("%(asctime)s %(levelname)s:
> %(message)s")
> _handler.setFormatter(_formatter)
> _logger.addHandler(_handler)
>
> So these are global to the module. The log lines above were produced by
> what I expected would be a single call to _logger.info() in a function
> in the module:
>
> _logger.info("Login: %s %s" % (firstname, lastname))
>
> Can anyone explain what I'm doing wrong? Many thanks,
Please cut and paste -- the FileHandler arguments are wrong and there is an
extra ')'. As alex23 said, basicConfig() adds a handler, but that logs to
stderr by default. You seem to be executing the code given above multiple
times. You can verify that by prepending your snippet with
f = open("metalog.txt", "a")
f.write("configuring handler\n")
f.close()
If metalog.txt contains multiple lines after your program has terminated
(you may have to shut down Zope -- don't know about that), a quick fix
might be
import logging
if not logging.root.handlers:
# your setup code
Peter
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