Logging ancestors ignored if config changes?

andrew cooke andrew at acooke.org
Sat Apr 26 08:21:06 EDT 2008

One way to handle this is to make creation of module-level Loggers
lazy, and make sure that logging initialisation occurs before any
other logging is actually used (which is not so hard - just init log
at the start of the application).

Of course, there's a performance hit...

For example:

class Log(object):
    def __init__(self, name):
        super(Log, self).__init__()
        self._name = name
        self._lazy = None
    def __getattr__(self, key):
        if not self._lazy:
            self._lazy = logging.getLogger(self._name)
        return getattr(self._lazy, key)

and then, in some module:

from acooke.util.log import Log
log = Log(__name__)
class Foo(object):
    def my_method(self):
        log.debug("this works as expected")


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