Mod_python error: "PythonHandler mod_python.publisher"

Traceback (most recent call last):

  File "/usr/local/lib/python2.4/site-packages/mod_python/apache.py", line 193, in Dispatch
    result = object(req)

  File "/usr/local/lib/python2.4/site-packages/mod_python/publisher.py", line 90, in handler
    if func_path[-1] == ".":

IndexError: string index out of range