<p>The only thing I can get python omnicomplete to work with are system modules. I get nothing for help with modules in my site-packages or modules that I'm currently working on.</p>

Just ran across this on Python reddit tonight:
PySmell
. Looks like what you're looking for.
PySmell is a python IDE completion helper.
It tries to statically analyze Python source code, without executing it, and generates information about a project’s structure that IDE tools can use.