This is a simple, full screen timer script that extends time with a key press. So, the timer begins counting down, and when the space bar is pressed, it'll add 20 seconds to the timer. When timer reaches 0, a message is displayed
Requires PyGame
The interval variable determines the initial starting time (default 20 seconds) and how many seconds to add (default 20 seconds)
Press space bar to add intervals (20s default)
Press escape key to exit the whole thing