site.here on python 2.4

[ariza]

greetings. it seems that the attribute site.here, of the site module,
has vanished in python 2.4. up until python 2.3, site.here seemed (to
me at least) a convenient way to get the complete path to the python
library on any platform:

>>> import site
>>> site.here
'/System/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3'

i do not see any information about this change save that in the new
documentation it says:

"""
This module is automatically imported during initialization. The
automatic import can be suppressed using the interpreter's -S option.

Importing this module will append site-specific paths to the module
search path.
"""

can anyone propose a similarly effective and cross-platform solution
for easily discovering the the library path on any python installation?