I'm looking for a graphic library that allow me to plot a pixel point in a specific color with the purpose of draw a fractal (mandelbrot set). I've read the basic math behind fractal and I understand it, the algorithm is not difficult. 

But I don't know what graphic library could I use, I don't need anything sofisticated and complex, just print a pixel set with colors. What do you suggest me? Cairo? OpenGl?.

Note: I only have experience with pygtk. I was reading the Java API and found the the fillRect method and BufferedImages but it seem a little complicate.

Thanks ;)