Help needed in Creating Pyunit framework to Control Automated Test Equipments

I need help in understanding and creating a PyUnit- python Unit test framework. 1. The person should be having very good expertise in Python & Pyunit. 2,. Experience in controlling Automated test equipments controlled with VISA//GPIB interface is preferred 3. Initially I will need assistance in understanding an existing project. Then I will need guidance in creating one of my own.