AttributeError: logging module bug ?

[Peter]

on python 2.6 the following code raises an AttributeError:

#!/usr/bin/env python
import os.path as p
import logging, logging.config


class Logger(object):
   def load_config(self):
     logging.config.fileConfig(p.join(p.dirname(__file__),'logging.cfg'))

logger = Logger()
logger.load_config()

======================================
Traceback (most recent call last):
   File "/p/python/exp/of_logging/logging_bug.py", line 11, in <module>
     logger.load_config()
   File "/p/python/exp/of_logging/logging_bug.py", line 8, in load_config
     logging.config.fileConfig(p.join(p.dirname(__file__),'logging.cfg'))
   File "/usr/local/python2.6/lib/python2.6/logging/config.py", line 76, 
in fileConfig
     formatters = _create_formatters(cp)
   File "/usr/local/python2.6/lib/python2.6/logging/config.py", line 
130, in _create_formatters
     c = _resolve(class_name)
   File "/usr/local/python2.6/lib/python2.6/logging/config.py", line 
100, in _resolve
     __import__(used)
   File "/p/python/of/logger.py", line 144, in <module>
     of_logger.load_config(p.join(p.dirname(__file__),'logging.cfg'))
   File "/p/python/of/logger.py", line 109, in load_config
     logging.config.fileConfig(conffile)
   File "/usr/local/python2.6/lib/python2.6/logging/config.py", line 76, 
in fileConfig
     formatters = _create_formatters(cp)
   File "/usr/local/python2.6/lib/python2.6/logging/config.py", line 
130, in _create_formatters
     c = _resolve(class_name)
   File "/usr/local/python2.6/lib/python2.6/logging/config.py", line 
101, in _resolve
     found = getattr(found, n)
AttributeError: 'module' object has no attribute 'logger'

 From what I understand in the source, the _resolve functions does an 
import of the containing module during the parsing of the config file. 
In the imported module, the module variable 'logger' is not defined at 
that moment and the function fails.

However, I can not see why my code should not work. I want to have a 
poor-man's Singleton Logger class ( see Python Cookbook 2nd edition 
p.275), so I rebind 'logger' to the only instance of its class.

What's the problem ?

Thanks
Peter