mod_python

Hello.
Your help is very appreciated
I am building a web app that works as follows:
1.It will get requests from client(mod-python)
2.Generates a request to another web server
( by re-writing the url and attaching the client's headers)
3. Send the response to the client(mod-python)

My problem is with headers:
a. Trying to read the headers from the client generates error,
I'm using :
def handler(req):
x= req.headers_in()
The error:
TypeError: 'mp_table' object is not callable
I didn't find any other way to do it in mod_python
b. I there a way to internally redirect the request from the client,
so that automatically the headers will be included in the new request?
(so that all that is needed to be changed is just the url)
[ I tried using req.internal_redirect("www.google.com"), but
it throws an error:
File "/usr/lib/python2.3/site-packages/mod_python/apache.py", line 85, in __getattr__
raise AttributeError, attr

AttributeError: internal_redirect

c. Because internal_redirect failes, I am trying to use alternatives such
as as using the urllib.

Thanks
Roy

1. req.headers_in is a field not method, so:
req.write(str(req.headers_in))
2. An internal redirect can only be to a path on your server, not an outside
one