Optional use of logging library module

Neil Benn benn at cenix-bioscience.com
Thu Jun 24 16:08:55 CEST 2004


Eric DeWall wrote:

>In trying to clean up the inevitable debug printing littered through some
>code, I started reading up on the 'logging' module.  Browsing groups
>indicates that the design of the module is controversial but personally I'm
>very happy to see such a full-featured logger as part of the standard
>distribution.  Here's my problem though (using 2.3.3) - I'm trying to write
>some reusable classes that _optionally_ use the logging module.  So a class
>might look like:
>
>  
>
<snip>

Hello,

          This is an idea by you could do this :

    *    None or some other ID is passed in (ala the void pattern) as
      your Logger
    * The Logger is created as a genuine logger
    * The logger has propagate set to false to stop messages going upwards
    * The logger has it's severity level set so that no messages are logged

OR, you could do this

    * None or some other ID is passed in (ala the void pattern) as your
      Logger
    * The Logger is created as a genuine logger
    * A filter is created which simply filters out everything

    However what I would suggest could be a good solution for you is to 
always have a logger present and log debug messages as debug and use the 
other levels for what they are meant for WARNING, ERROR, etc.  That way 
you can easily turn the logger off in the instance you are working 
with.  Yes, OK you take a small speed knock but the speed knock I've had 
on this is small (I'm not a speed junkie anyways).

    I also agree with you, a fully featured logger is essential and 
personally - I'm happy with the design, it's not too complicated you 
only need to read through the docs and try it out - easy peasy lemon 
squeezy.

Cheers,

Neil

-- 

Neil Benn
Senior Automation Engineer
Cenix BioScience
BioInnovations Zentrum
Tatzberg 47
D-01307
Dresden
Germany

Tel : +49 (0)351 4173 154
e-mail : benn at cenix-bioscience.com
Cenix Website : http://www.cenix-bioscience.com





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