This script was written according to Wikipedia topic "Mortgage calculator" as part of Career Path "Computer Science" by Codecademy.
Also, it uses PyInputPlus module created and maintained by Al Sweigart.
This mortgage calculator is a simple way to assess the financial suitability of a home loan application.
This program calculates monthly payment and loan's term in a fixed-rate mortgage (interest's rate keeps the same over the course of the loan's term).