Guido van Robot (GvR) is an educational tool to help students learn the Python programming language, named after the creator of Python, Guido van Rossum. GvR uses the idea behind Karel the Robot, making the learning of Python programming more interesting. Using GvR, a student writes a program that controls a 'robot' that moves through a city consisting of a rectangular grid of streets (left-right) and avenues (up-down).