11.2. How to log problems to a log file

First you need to get the logger instance. After that, you can call debug, info, warning, error and critical on the logger instance. For example:

from pyblosxom import tools

def cb_prepare(args):
   ...
   logger = tools.getLogger()
   logger.info("blah blah blah...")

   try:
      ...
   except Exception, e:
      logger.error(e)