Just cam across the MAMEToolkit for arcade games. Those of you interested in working on Pong or some other Atari game may be interested. It requires Linux and describes itself as follows.

This Python library has the potential to train your reinforcement learning algorithm on almost any arcade game. It is currently available on Linux systems and works as a wrapper around MAME. The toolkit allows your algorithm to step through gameplay while receiving the frame data and internal memory address values for tracking the games state, along with sending actions to interact with the game.