On Dec 7, 7:33 pm, Jean-Michel Pichavant <jeanmic...@sequans.com> wrote: > RedBaron wrote: > > Hi, > > I am beginner to python and i am writing a program that does a lot of > > things. One of the requirements is that the program shud generate a > > log file. I came across python loggging module and found it very > > useful. But I have a few problems > > Suppose by giving option '-v' along with the program the user can turn > > off logging to a file and instead display log on the screen. Since I > > am using a config file for logging, how do I accomplish this. > > I tried to define two handlers (fil and screen) and added it to my > > logger. But that logs data to both screen and the file. I need to log > > it to only one. How do I dynamically remove one of the handler from > > the logger based on user option. As a precursor how do i reference the > > handlers defined in config file in the code?? > > your logger has a public 'handlers' attribute. > > consoleHandlers = [h for h in logger.handlers if h.__class__ is > logging.StreamHandler] # the list of handlers logging to the console > (assuming they are instances of the StreamHandler class) > > if consoleHandlers: > h1 = consoleHandlers[0] > h1.filter = lambda x:True # enable the handler > h1.filter = lambda x:False # disable the handler > > JM
Thanks JM, This works like charm. I had also though on similar lines bt I was using isinstance(). I have two handlers - logging.RotatingFIleHandler and StreamHandler. isinstance() was weird in the sense that no matter which handle I checked for being 'StreamHandler' I always got true. Also instead of setting filter to false, I was popping from the handlers list...Silly me Thanks a ton -- http://mail.python.org/mailman/listinfo/python-list
