Diffie-Hellman Key Exchange Code using python 3 on Ubuntu

I need a help in writing a code using python 3 on Ubuntu The code implements the Diffie-Hellman Key Exchange (which requires understanding of: primitive root, successive powers, the algorithm of Diffie-Hellman key exchange) I expect skype calls with the freelancer and I would like him/her to explain anything I need in the code. *I will provide the whole project after assigning. *I prefer Arabic speaker