python ./checkenv.py - Check the environment.
python ./testenv.py - Short training run.
python ./train.py - Infinite training run with tensorboard logs and intermediate models save.
python ./train_iter.py - Sequentially launch ./train.py with different weights.
./train.py accepts --render argument with "human" or "none" ("none" is the default). "none" trains silently, while "human" runs intentionally slower, adds some debug output and graph output after each episode.