When trying to log caller pathname information, instead of the actual caller's name I get the full name of the logging module source file:

>>> import logging
>>> logging.basicConfig(format='%(pathname)s')
>>> logging.getLogger('').critical('foo')
/usr/lib/python2.4/logging/__init__.py
>>>

I've been discussing this on comp.lang.python and the suspect arised that this has something to do with a symlink in the path leading to the module source file (I have a lib -> lib64 symlink on my system). To verify this I copied the entire logging directory into my home dir and retried. This is what I got:

>>> import logging
>>> logging.basicConfig(format='%(pathname)s')
>>> logging.getLogger('').critical('foo')
<stdin>
>>>

Additional info:
Python Version: 2.4.3
OS: Gentoo Linux 2.6.17-r8
CPU: AMD Turion(tm) 64 Mobile Technology
sys.path: ['', '/usr/lib/portage/pym', '/usr/lib/python24.zip', '/usr/lib64/python2.4', '/usr/lib64/python2.4/plat-linux2', '/usr/lib64/python2.4/lib-tk', '/usr/lib64/python2.4/lib-dynload', '/usr/lib64/python2.4/site-packages', '/usr/lib64/python2.4/site-packages/Numeric', '/usr/lib64/python2.4/site-packages/dbus', '/usr/lib64/python2.4/site-packages/gtk-2.0']