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scikit-learn scikit-learn

scikit-learn: machine learning in Python

Stars

67,152

Popular Active

Forks

27,353

Watchers: 67,152

Language

Python

License: BSD 3-Clause "New" or "Revised" License

Repository Radar Score

66 / 100

Growth

7d
+0
30d
+0
%
0.0%

Not enough metric snapshots yet to chart growth for this repository.

Score breakdown

  • popularity 92
  • growth 0
  • activity 100
  • freshness 100
  • community 85

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https://raw.githubusercontent.com/scikit-learn/scikit-learn/main/doc/logos/scikit-learn-logo.png

scikit-learn is a Python module for machine learning built on top of SciPy and is distributed under the 3-Clause BSD license.

The project was started in 2007 by David Cournapeau as a Google Summer of Code project, and since then many volunteers have contributed. See the About us page for a list of core contributors.

It is currently maintained by a community of contributors, with volunteers but also support from several organisations.

Website: https://scikit-learn.org

Installation

Dependencies

scikit-learn requires:

  • Python (>= 3.11)
  • NumPy (>= 1.24.1)
  • SciPy (>= 1.10.0)
  • Narwhals (>= 2.0.1)
  • joblib (>= 1.4.0)
  • threadpoolctl (>= 3.5.0)

Scikit-learn plotting capabilities (i.e., functions start with plot_ and classes end with Display) require Matplotlib (>= 3.6.1). For running the examples Matplotlib >= 3.6.1 is required. A few examples require scikit-image >= 0.22.0, a few examples require pandas >= 1.5.0, some examples require seaborn >= 0.13.0 and Plotly >= 5.22.0.

User installation

If you already have a working installation of NumPy and SciPy, the easiest way to install scikit-learn is using pip:

pip install -U scikit-learn

or conda:

conda install -c conda-forge scikit-learn

The documentation includes more detailed installation instructions.

Changelog

See the changelog for a history of notable changes to scikit-learn.

Development

We welcome new contributors of all experience levels. The scikit-learn community goals are to be helpful, welcoming, and effective. The Development Guide has detailed information about contributing code, documentation, tests, and more. We've included some basic information in this README.

Important links

Source code

You can check the latest sources with the command:

git clone https://github.com/scikit-learn/scikit-learn.git

Contributing

To learn more about making a contribution to scikit-learn, please see our Contributing guide.

Testing

After installation, you can launch the test suite from outside the source directory (you will need to have pytest >= 7.1.2 installed):

pytest sklearn

See the web page https://scikit-learn.org/dev/developers/contributing.html#testing-and-improving-test-coverage for more information.

Random number generation can be controlled during testing by setting the SKLEARN_SEED environment variable. See https://scikit-learn.org/dev/developers/global_configuration.html#sklearn-seed for details.

Submitting a Pull Request

Before opening a Pull Request, have a look at the full Contributing page to make sure your code complies with our guidelines: https://scikit-learn.org/stable/developers/index.html

Project History

The project was started in 2007 by David Cournapeau as a Google Summer of Code project, and since then many volunteers have contributed. See the About us page for a list of core contributors.

Note: scikit-learn was previously referred to as scikits.learn.

Help and Support

Documentation

Communication

Main Channels

Developer & Support

Social Media Platforms

Resources

Citation

If you use scikit-learn in a scientific publication, we would appreciate citations: https://scikit-learn.org/stable/about.html#citing-scikit-learn

Created: Aug 17, 2010

Last push: Sep 3, 2026

Default branch: main

Latest release: 1.9.0

Languages

Share of the codebase by language, based on repository metadata from the host.

  • Python 92.6%
  • Cython 5.4%
  • C++ 1.0%
  • C 0.3%
  • Shell 0.3%
  • Meson 0.2%
  • CSS 0.1%
  • JavaScript 0.0%
  • Makefile 0.0%

Repository Radar analysis

Deterministic insights derived from public metadata and our observations — not personal testing or reviews.

Why this repository is interesting

  • High absolute popularity (67,152 stars) signals broad adoption.
  • Maintained recently (last push 2 weeks ago).

Who should use it

  • Developers working primarily with Python
  • Teams exploring AI tooling, agents, or ML infrastructure
  • Platform and DevOps engineers

Potential use cases

  • Reference or evaluate Python open-source approaches in this domain
  • Prototype AI/agent workflows or study reference architectures
  • Evaluate automation, CI/CD, or infrastructure patterns

Strengths

  • Recent repository activity
  • README present in our index
  • Declared license: BSD 3-Clause "New" or "Revised" License
  • Substantial fork count (27,353) suggests reuse and contribution interest

Limitations / considerations

  • Insights are derived from public metadata and our observations — not a substitute for code review

What to watch

  • Re-check last push, issues, and releases on GitHub before production adoption

Strong signals: Strong community interest · Active maintenance

Source: GitHub (public metadata) + Repository Radar analysis. We do not claim ownership of third-party repositories.

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