[Tutor] Calling C code in a python program

[Catriona Johnston]

Hello all,
	I have just started using python for science a week ago and need to
know how to integrate a previously written program in C into my python
interface...There must be a quicker method other than SWIG or the API
methods that involves going into the C program and altering all definitions
to include API definitions...please tell me there is! I do not need to
implement separate parts of the C program individually all I need to do is
call it, feed it its input and capture its output. 
Awaiting your comment
KT