python CGI,sybase and environ variables

[eight02645999 at yahoo.com]

hi
i am writing a CGI to process some database transactions using the
Sybase module.
so in my CGI script, i have:

...
import Sybase
import cgitb; cgitb.enable(display=1 , logdir="/tmp/weblog.txt")
...
...

the problem is , everytime i have ImportError: No module named Sybase
flagged out.

at first i think it's library path misconfiguration, so i put
os.environ["SYBASE"] = '/path/to/sybase'
os.environ["LD_LIBRARY_PATH"] =  '/path/to/sybase/lib'

before i import Sybase. but its still the same error

Ok.so now, is it necesary to configure the web server's "nobody" user's
profile to point to the Sybase libraries? or worse, configure root's
profile to point to Sybase libraries? what's could be wrong?
thanks for any help rendered.