Stable-Baselines3 - Contrib (SB3-Contrib)
Contrib package for Stable-Baselines3 - Experimental reinforcement learning (RL) code. "sb3-contrib" for short.
What is SB3-Contrib?
A place for RL algorithms and tools that are considered experimental, e.g. implementations of the latest publications. Goal is to keep the simplicity, documentation and style of stable-baselines3 but for less matured implementations.
Why create this repository?
Over the span of stable-baselines and stable-baselines3, the community has been eager to contribute in form of better logging utilities, environment wrappers, extended support (e.g. different action spaces) and learning algorithms.
However sometimes these utilities were too niche to be considered for stable-baselines or proved to be too difficult to integrate well into the existing code without creating a mess. sb3-contrib aims to fix this by not requiring the neatest code integration with existing code and not setting limits on what is too niche: almost everything remotely useful goes! We hope this allows us to provide reliable implementations following stable-baselines usual standards (consistent style, documentation, etc) beyond the relatively small scope of utilities in the main repository.
Features
See documentation for the full list of included features.
RL Algorithms:
- Augmented Random Search (ARS)
- Quantile Regression DQN (QR-DQN)
- PPO with invalid action masking (MaskablePPO)
- PPO with recurrent policy (RecurrentPPO aka PPO LSTM)
- Truncated Quantile Critics (TQC)
- Trust Region Policy Optimization (TRPO)
- Batch Normalization in Deep Reinforcement Learning (CrossQ)
Gym Wrappers:
Documentation
Documentation is available online: https://sb3-contrib.readthedocs.io/
Installation
Note: You need the master version of Stable Baselines3.
To install Stable Baselines3 master version:
pip install git+https://github.com/DLR-RM/stable-baselines3
To install Stable Baselines3 contrib master version:
pip install git+https://github.com/Stable-Baselines-Team/stable-baselines3-contrib
5 maintainers
Metadata
5 maintainers
Release files for sb3-contrib 2.9.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
|---|---|---|---|---|
| sb3_contrib-2.9.0.tar.gz | 90.3 kB | With provenance | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| sb3_contrib-2.9.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 183.4 kB
Release files / sb3_contrib-2.9.0.tar.gz
| Download URL | sb3_contrib-2.9.0.tar.gz |
|---|---|
| Size | 90.3 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
6e839c669552ecb3deb616a42ea98ed5e6c599eb5ac5f86232415b87a3873699
|
|
BLAKE2b-256 checksum How to use checksums |
8f8e476222d88ba09dce0feebf6fb30b55e4dd0c80be5b19dc7b40d12d70752a
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.13.12
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Jun 15, 2026.
Transparency logRelease files / sb3_contrib-2.9.0-py3-none-any.whl
| Download URL | sb3_contrib-2.9.0-py3-none-any.whl |
|---|---|
| Size | 93.0 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
b492b2be792f8f8214ff6b984e94812dc877f809ae82302cbe00626442ae316a
|
|
BLAKE2b-256 checksum How to use checksums |
c306add3f1d6250f58ca493830ddb2118975aa3c4433bc07662d5ac5089eb691
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.13.12
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Jun 15, 2026.
Transparency logSecurity for sb3-contrib 2.9.0
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
Full provenance
All 2 files in this release have been uploaded with provenance metadata.
Attestation for sb3_contrib-2.9.0.tar.gz
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Jun 15, 2026.
Transparency logA note on package security
PyPI is a repository for distributing packages, not a service for auditing them. While third-party security researchers and our staff do their best to detect and remove malicious packages, PyPI cannot guarantee the quality, security or suitability of any given package.
