http://projecteuler.net Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve. Although mathematics will help you arrive at elegant and efficient methods, the use of a computer and programming skills will be required to solve most problems.
The aim of this projecteuler-pytools is NOT to provide answers to these questions in anyway, providing answers or solutions to these questions will be deteriorating to the spirit of Project Euler. Almost all questions in Project Euler require you to find primes numbers, note execution time of code etc. This project tends to provide library for these common tasks.