(in WSL env)

tldr;

install 2 things:

pip install gymnasium
pip install "gymnasium[box2d]”

❯ python main.py
Traceback (most recent call last):
  File "/home/jpotw/Projects/study/labs/lab_03/.venv/lib/python3.12/site-packages/gymnasium/envs/box2d/bipedal_walker.py", line 15, in <module>
    import Box2D
ModuleNotFoundError: No module named 'Box2D'

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/jpotw/Projects/study/labs/lab_03/main.py", line 4, in <module>
    env = gym.make("LunarLander-v3", render_mode="human")
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/jpotw/Projects/study/labs/lab_03/.venv/lib/python3.12/site-packages/gymnasium/envs/registration.py", line 696, in make
    env_creator = load_env_creator(env_spec.entry_point)
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/jpotw/Projects/study/labs/lab_03/.venv/lib/python3.12/site-packages/gymnasium/envs/registration.py", line 544, in load_env_creator
    mod = importlib.import_module(mod_name)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/jpotw/.local/share/uv/python/cpython-3.12.11-linux-x86_64-gnu/lib/python3.12/importlib/__init__.py", line 90, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1310, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1331, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 935, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 999, in exec_module
  File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
  File "/home/jpotw/Projects/study/labs/lab_03/.venv/lib/python3.12/site-packages/gymnasium/envs/box2d/__init__.py", line 1, in <module>
    from gymnasium.envs.box2d.bipedal_walker import BipedalWalker, BipedalWalkerHardcore
  File "/home/jpotw/Projects/study/labs/lab_03/.venv/lib/python3.12/site-packages/gymnasium/envs/box2d/bipedal_walker.py", line 25, in <module>
    raise DependencyNotInstalled(
gymnasium.error.DependencyNotInstalled: Box2D is not installed, you can install it by run `pip install swig` followed by `pip install "gymnasium[box2d]"`

❯ uv pip install "gymnasium[box2d]”

working!

image.png