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A toolkit for developing and comparing reinforcement learning algorithms.

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typos fixed # Description Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for...

Here's an attempt at being able to replay with a different action. If the step terminates, use a copy of the environment and use a different action. ``` env =...

**Describe the bug** Hi, I used the vector env api in gym to train Atari-PongNoFrameSkip-v4. After the agent interacts with the environment for a period of time, I discovered a...

**Describe the bug** The bug is when i run the code it show's me the kernel is dead and restarting the main issue i found is the env method i...

### Question Hello guys, Congratulations on wonderful work! May I ask do you have the open source code for Montezuma Revenge (environment, API, etc) Thank you, Yu

Dear Developers, > My setup: > ubuntu 23.04 > Python 3.11.4 (main, Jun 9 2023, 07:59:55) [GCC 12.3.0] on linux When running instructions for my own environment in https://www.gymlibrary.dev/content/environment_creation/#make-your-own-custom-environment the...

### Question Hello, I noticed that when I use `SyncVectorEnv` and `AsyncVectorEnv`, if I perform `step()`function and the environment reaches the end, `step_wait()` function will automatically do `reset()` function. However,...

### Question If you're a beginner and have basic questions, please ask on [r/reinforcementlearning](https://www.reddit.com/r/reinforcementlearning/) or in the [RL Discord](https://discord.com/invite/xhfNqQv) (if you're new please use the beginners channel). Basic questions that...

### Question Wondering why there are several preset non deterministic policies on the leaderboard. In the MDP/POMDP setting the agent doesn't get direct access to the transition matrix, which is...

### Proposal Create methods that are able to retrieve and set, the initial states that uniquely represents the terrain created for Bipedal Walker Hardcore. ### Motivation I'm currently working on...