Extending python with a OpenCV C++ module

I have been trying to extend python with a OpenCV module written in C++. I am encountering 2 problems during this.

1) Setup.py - How does one include cv.h library here?

libraries = ['opencv'],
library_dirs = ['/usr/local/lib'],

2) Importing the cv.h in the C++ module file?

#include "cv.h"
using namespace cv;

Throws compile time error - t1.cpp:3:16: fatal error: cv.h: No such file or directory