Gunther Dietrich wrote: > Tim Chase <python.l...@tim.thechases.com> wrote: > >>The current (2.7; maybe 3.x?) logging module doesn't have any sort of >>"clear out all the current handlers" method. > > Indeed, THERE IS a removeHandler() method. In the documentation of > python 2.6, it is mentioned in '16.6.5. Logger Objects', directly after > the addHandler() method. If you found the addHandler() method there, you > should have found removeHandler() too. > > And a simple > >>>> dir(log) > ['__doc__', '__init__', '__module__', '_log', 'addFilter', 'addHandler', > 'callHandlers', 'critical', 'debug', 'disabled', 'error', 'exception', > 'fatal', 'filter', 'filters', 'findCaller', 'getEffectiveLevel', > 'handle', 'handlers', 'info', 'isEnabledFor', 'level', 'log', > 'makeRecord', 'manager', 'name', 'parent', 'propagate', 'removeFilter', > 'removeHandler', 'root', 'setLevel', 'warn', 'warning'] > > also would have revealed it to you. > > >>I can hack it by doing >> >> log = logging.getLogger() # get the root logger >> del log.handlers[:] # reach inside and nuke 'em >> log.addHandler(...) # install the one(s) I want >> >>but it feels a little dirty to reach into logging.root.handlers since >>there are other methods for adding/removing handlers. However, as >>best I can tell, to remove a handler, you already need to have it >>saved somewhere. > > What about this: > >>>> for handler in log.handlers: > ... log.removeHandler(handler) > > I think, that's just one of the tasks that removeHandler() was written > for. > > >>Is there a better way to do this, or do I just suck it up and deal >>with the (potentially thread-ignorant, as it doesn't lock) hack? > > One of the best ways would be to read the documentation. And to do some > exploration, e.g. by means of dir() and help(), could also be quite > instructive. This experience cannot be replaced by > documentation-research requests to the Usenet.
Hm, what do the docs say about this one? >>> import logging >>> logging.basicConfig() >>> log = logging.getLogger("foo") >>> for i in range(5): ... log.addHandler(logging.FileHandler("tmp.log")) ... >>> assert len(log.handlers) == 5 >>> for handler in log.handlers: ... log.removeHandler(handler) ... >>> log.handlers [<logging.FileHandler object at 0x7f8217686e90>, <logging.FileHandler object at 0x7f8216f9eb90>] -- https://mail.python.org/mailman/listinfo/python-list