[mod_python] Why do I get a 405 ERROR on HEAD REQUEST?

Why do I get a 405 ERROR on HEAD REQUEST?

Here is an example request when using mod_python.publisher:

 bash-2.05b$ telnet my.host.org 80
 Trying 55.55.55.55...
 Connected to my.host.org.
 Escape character is '^]'.
 HEAD /python/viva.py/list HTTP/1.1
 Host: my.host.org

 HTTP/1.1 405 Method Not Allowed
 Date: Sun, 22 Aug 2004 20:08:02 GMT
 Server: Apache/2.0.50 (Gentoo/Linux) mod_python/3.1.3 Python/2.3.3 mod_ssl/2.0.50 OpenSSL/0.9.7d
 Allow: GET,HEAD,POST,TRACE
 Content-Type: text/html; charset=iso-8859-1

 Connection closed by foreign host.


Thanks,
s