About the project:
This is a MOOC course in coursera https://class.coursera.org/interactivepython-004 An Introduction to Interactive Programming in Python by Joe Warren, Scott Rixner, John Greiner, Stephen Wong
The codes writen in codesklputor http://www.codeskulptor.org/,so than you can import "simplegui".
======================================= About "Guess the Number":
The first player thinks of a secret number in some known range while the second player attempts to guess the number. After each guess, the first player answers either “Higher”, “Lower” or “Correct!” depending on whether the secret number is higher, lower or equal to the guess.
======================================= About "Stopwatch"：
The simple digital stopwatch that keeps track of the time in tenths of a second. The stopwatch should contain "Start", "Stop" and "Reset" buttons.
======================================= About "Pong"
Pong, one of the first arcade video games (1972). While Pong is not particularly exciting compared to today's video games, Pong is relatively simple to build and provides a nice opportunity to work on the skills.