To pick each new color and position, you'll need Python's random
number generator. It's very easy to use. Just import the random
module. Then you can use randint to get random numbers. If you
wanted a number between 0 and 10: import random
r = random.randint(0, 10)
"How do you use this to draw lots of lines with colors that
vary? First, let's set up the skeleton of what you'll want to do.
Here's the program from the previous article, except that I've
replaced the contents of expose_handler with a loop that will draw
100 lines. As yet, it won't work, because there's no code to set
x1, y1, x2, y2:"