Avoiding the installation of dependencies

[Alec Resnick]

Hi!  I'm looking to install py-ipython, py-beautifulsoup, and  
psycopg2.  I'm running python25 and postgresql82, but those ports  
"require" python24 and postgresql81, despite the versions that  
macports installs supporting python25 and postgresql82.  I was  
wondering: is there a way to force a port to install, without  
installing its dependents?  I know I could just compile this from  
source, but I really like using macports. . .

Thanks!

Gratefully,
a.