Project description

⚠️⚠️⚠️ Summary ⚠️⚠️⚠️

⚠️⚠️⚠️ The sklearn PyPI package is deprecated use scikit - learn instead ⚠️⚠️⚠️

How to fix the error for the main use cases

• use pip install scikit - learn rather than pip install sklearn
• replace sklearn by scikit - learn in your pip requirements files
  (requirements.txt,setup.py, setup.cfg,Pipfile,etc …)
• if the sklearn package is used by one of your dependencies
  it would be great if you take some time to track which package uses
  sklearn instead ofscikit - learn and report it to their issue tracker
• as a last resort,set the environment variable
  SKLEARN_ALLOW_DEPRECATED_SKLEARN_PACKAGE_INSTALL = true to avoid this error

Reason for the deprecation

sklearn package is exists on PyPI exist to prevent malicious actor from using the
sklearn package,since sklearn ( the import name ) andscikit - learn (the
project name) are sometimes used interchangeably. scikit - learn is the actual
package name and should be used with pip,e.g. for:

• pip commands: pip install scikit - learn
• pip requirement file (requirements.txt,setup.py, setup.cfg,
  Pipfile,etc …)

At the time of writing (October 2022) sklearn downloads is about 1/5 of the
scikit - learn download on PyPI so a lot of people are using it .

There are some edge case with the way the PyPIsklearn package is
implemented:

• pip install sklearn==1.1.3 will say that the 1.1.3 version does not exist,
  which is confusing. The only available version at the time of writing of
  sklearn is 0.0.
• pip uninstall sklearn will actually not uninstallscikit - learn,you can
  still do import sklearn afterwards
• it can be confusing to have both sklearn and scikit - learn in the pip list output,prompting questions like “why do I have scikit – learn 1.1.3 and
  sklearn 0.0,and what does it even mean”?

Historical brownout schedule

Starting 2023 December 1st,trying to install the sklearn PyPI package will
raise an error.

The following table shows the historical brownout schedule that was used
between 2022 December 1st and 2023 December 1st,in order to get more people
aware of the deprecation.

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