gymnasium
https://github.com/farama-foundation/gymnasium
Python
An API standard for single-agent reinforcement learning environments, with popular reference environments and related utilities (formerly Gym)
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- Issues
- Restore Text observations after composite dtype promotion
- Fix ClipReward integer bound comparison overflow
- fix(checker): compare non-numeric arrays without numeric tolerances
- Preserve delayed observation history with reused buffers
- Fix AtariPreprocessing screens on early episode endings
- Preserve tuple fields when vector observation transforms reorder them
- Correct Sequence sampling-length type annotations
- Handle empty Dict and Tuple spaces when flattening
- Fix phys2d CartPole dynamics, functional env kwargs, HumanoidStandup `uph_cost_weight` and inverted pendulum pickling
- Fix leg ground_contact flag clearing when sliding across ground segments in Box2D envs
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- Python not yet supported