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A bundle of 3rd party extensions to scikit-learn

Project Description


Scikit-Learn Extensions (sklearn_extensions) is a single source repository for extensions to [scikit-learn]( It is intended to compliment the slower more cautious approach of scikit-learn with regard to adding new predictors and modules, with a separate pip-installable source for sklearn-compatible modules that may not meet those standards.

In particular, this project is interested in smaller one-off projects or even gists, rather than larger more established ones (such as pylearn2). Other than larger projects, we will shy away from projects with significant external dependencies (i.e. wrappers around vowpal wabbit or xgboost), and rather prefer more python/numpy/scipy based projects.

Due to these guiding goals, the modules included here may not be as well tested, production ready, or stable as those included directly in sklearn. This is pretty much the wild west, test anything that uses this package heavily.

Installation / Usage

We aim to first support python 3, and will host the first operational version on pypi. Note that the install here will install all underlying packages, and is therefore pretty big. It is recommended that you do this in a virtualenv.


A number of packages have been identified but not yet added due to python 3 incompatibility, not being pip installable, or otherwise not trivial to add. If anyone would like to get involved with this project a great way to start is to add one of these.


If you have an extension that you’d like to add, please submit a pull request and we can throw it in. If modifications to a project are required, please continue development in the project’s own repo rather than submit changes here. If a project comes from a gist or some other snippet and therefore cannot be simply imported, then please create a new repo which can be simply imported here.

There are two methods for adding extensions into sklearn_extensions:

  • If the extension is pip-installable, just add it to the requirements.txt file here, add a subdirectory for the new project, and import the relevant classes/methods
  • If the extension is not-pip installable, either make it so, or add the source into the subdirectory here directly.

If there is a package that is useful but does not comply with the sklearn API, feel free to include a wrapped version of it here as well, but include some tests.

We intend to add a consolidated source of tests for the included packages here as well, but that has not been formalized yet.


In most cases, all that sklearn_extensions does with external projects is import them. In those cases we add the license of the source project in its subdirectory just for safe-keeping.

All material specific to this project (specifically any docs, tests, examples or original code) is released under the BSD 3-clause license. Any packages included in the bundle retain their original licences (as included in their subdirectories)

Release History

Release History

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