Wrongly installed module in python

Question

I tried to install sci-kit learn module in python on ubuntu. As explained in their tutorial, I did:

pip install --user --install-option="--prefix=" -U scikit-learn

But when, in python console, I try

import sklearn

I get:

ImportError: No module named sklearn

Moreover, if I do

pip list

sklearn does not appear in the list.

And if I try:

sudo pip install scikit-learn

I get:

Requirement already satisfied (use --upgrade to upgrade): scikit-learn in ./.local/lib/python2.7/site-packages

any chance you are using a virtualenv?

C.B.
– C.B.

2015-01-14 17:07:26 +00:00
Commented Jan 14, 2015 at 17:07 — C.B.
– C.B., Commented Jan 14, 2015 at 17:07

Matthew Franglen · Accepted Answer · 2015-01-14 18:56:56Z

2

It's probably caused by the folder ~/.local/lib not appearing in your sys.path. You can update the sys.path in a couple of ways. Either set the PYTHONPATH environment variable before running the console, or just append to the sys.path array.

You could uninstall the module and then reinstall as root:

pip uninstall scikit-learn ; sudo pip install scikit-learn

You can also just delete the ~/.local/lib folder and reinstall the package.

edited Jan 14, 2015 at 18:56

answered Jan 14, 2015 at 17:07

Matthew Franglen

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4 Comments

Mostafa Over a year ago

uninstall is a good suggestion, but I get: Cannot uninstall requirement scikit-learn, not installed Storing debug log for failure in /home/ubuntu/.pip/pip.log

Matthew Franglen Over a year ago

Perhaps you should just delete the ~/.local/lib folder. That should be equivalent to uninstalling the package. You may want to consider virtualenvwrapper as a way to handle these dependencies in future: virtualenvwrapper.readthedocs.org/en/latest

Benyamin Jafari Over a year ago

I'm dealing with this error when I want to remove scikit-learn package:

Cannot uninstall 'scikit-learn'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

vineeshvs Over a year ago

@BenyaminJafari stackoverflow.com/questions/53807511/…

Community · Accepted Answer · 2020-06-20 09:12:55Z

2

I had the same problem, but when I used sudo pip uninstall scikit-learn or sudo pip install -U scikit-learn I'm dealing with the following error:

Cannot uninstall 'scikit-learn'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

My problem solved by the following line:

sudo pip install --ignore-installed scikit-learn==0.18

edited Jun 20, 2020 at 9:12

CommunityBot

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answered Mar 30, 2019 at 19:07

Benyamin Jafari

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