Calling python from a C function that is embedded in python?

[VanL]

Hello,

I have a python framework that I am using, along with a couple C 
libraries that are wrapped using swig.

Is there a way to make the functions that I have written in python 
callable by one of the wrapped functions?

I don't have to stay with swig, pyrex would be fine too. (Or almost any 
other similar tool, those are the only two that I know.)

In short:  I want python to be able to call wrapped functions like they 
are python functions, and a wrapped C library to call wrapped python 
functions like they were in C.

Is there any way to do this?

Thanks,

VanL