Calculator console application in Python

We build a console calculator application using Python Programming Language in this article.

This application can perform basic arithmetic operations like addition, subtraction, multiplication and division.It can evaluate simple mathematical expressions like 8 + 9 - 6 ** 7 (** stands for power operation)The application can store the resultant value after a calculation. The user can use this value in further calculations by using the letter 'p' in its place.
if the last calculated value was 5,...