gymnasium<0.29,>=0.28.1
pettingzoo<1.23,>=1.22.3

[examples]
jupyterlab
matplotlib
stable_baselines3[extra]<2.1,>=2.0.0a5
ipywidgets
tianshou<0.6,>=0.5

[tests]
pytest
pettingzoo[butterfly]<1.23,>=1.22.3
