如何在 anaconda 中升级 scikit-learn 包

Question

I am trying to upgrade package of scikit-learn from 0.16 to 0.17. For that I am trying to use binaries from this website: http://www.lfd.uci.edu/~gohlke/pythonlibs/#scikit-learn . I have Windows 7 x64 bit. I downloaded the relevant package locally and gave following commands and got Requirement already up-to-date:

C:\Users\skumar>pip install --upgrade --use-wheel --no-index --find-links=../../
SOURCE/APPS scikit-learn
Ignoring indexes: https://pypi.python.org/simple
Requirement already up-to-date: scikit-learn in c:\anaconda3\lib\site-packages

Then I tried to upgrade it from remote site and got similar result:

C:\Users\skumar>pip install --upgrade --use-wheel --no-index --trusted-host www.
lfd.uci.edu --find-links=http://www.lfd.uci.edu/~gohlke/pythonlibs/ scikit-learn

Ignoring indexes: https://pypi.python.org/simple
Requirement already up-to-date: scikit-learn in c:\anaconda3\lib\site-packages

On Remote site there are two versions ie, 0.16 & 0.17. Is there a way to specify version in command? Or how do you install/upgrade wheel file?

Answer 1

Anaconda comes with the conda package manager which is designed to handle these kinds of upgrades. Start by updating conda itself to get the most recent package lists:

conda update conda

And then install the version of scikit-learn you want

conda install scikit-learn=0.17

All necessary dependencies will be upgraded as well. If you have trouble with conda on Windows, there are some relevant FAQ here: http://docs.continuum.io/anaconda/faq

Answer 2

Following Worked for me for scikit-learn on Anaconda-Jupyter Notebook.

Upgrading my scikit-learn from 0.19.1 to 0.19.2 in anaconda installed on Ubuntu on Google VM instance:

Run the following commands in the terminal:

First, check existing available packages with versions by using:

conda list    

It will show different packages and their installed versions in the output. Here check for scikit-learn. eg for me, the output was:

scikit-learn              0.19.1           py36hedc7406_0  

Now I want to Upgrade to 0.19.2 July 2018 release ie latest available version.

conda config --append channels conda-forge
conda install scikit-learn=0.19.2

As you are trying to upgrade to 0.17 version try the following command:

conda install scikit-learn=0.17

Now check the required version of the scikit-learn is installed correctly or not by using:

conda list 

For me the Output was:

scikit-learn              0.19.2          py36_blas_openblasha84fab4_201  [blas_openblas]  conda-forge

Note: Don't use pip command if you are using Anaconda or Miniconda

I tried following commands:

!conda update conda 
!pip install -U scikit-learn

It will install the required packages also will show in the conda list but if you try to import that package it will not work.

On the website http://scikit-learn.org/stable/install.html it is mentioned as: Warning To upgrade or uninstall scikit-learn installed with Anaconda or conda you should not use the pip.

Answer 3

So to upgrade scikit-learn package, you have to follow below process

Step-1: Open your terminal( Ctrl+Alt+t )

Step-2: Now for checking currently installed packages along with the versions installed on your conda environment by typing conda list

Step-3: Now for upgrade type below command

conda update scikit-learn

Hope it helps!!

Answer 4

I would suggest using conda. Conda is an anconda specific package manager. If you want to know more about conda, read the conda docs .

Using conda in the command line, the command below would install scipy 0.17.

conda install scipy=0.17.0

Answer 5

Updating a Specific Library - scikit-learn :

Anaconda ( conda ):

conda install scikit-learn

Pip Installs Packages ( pip ):

pip install --upgrade scikit-learn

Verify Update:

conda list scikit-learn

It should now display the current (and desired) version of the scikit-learn library.

For me personally, I tried using the conda command to update the scikit-learn library and it acted as if it were installing the latest version to then later discover (with an execution of the conda list scikit-learn command) that it was the same version as previously and never updated (or recognized the update?). When I used the pip command, it worked like a charm and correctly updated the scikit-learn library to the latest version!

Hope this helps!

More in-depth details of latest version can be found here (be mindful this applies to the scikit-learn library version of 0.22 ):

• Release Highlights for scikit-learn 0.22

Answer 6

I made it work to update to 0.24.1, on Windows 10 64bits, so I share the way I did it with the GUI:

1. launch Anaconda3 gui

2. on the left menu, click "environments"

3. next to "base (root)", click on the green arrow/triangle

4. select "Open Terminal"

5. type the command line:

   conda install scikit-learn==0.24.1

It worked without error.

Answer 7

如果你在anaconda中使用Jupyter，在终端conda conda update scikit-learn后，关闭anaconda重启，否则会再次报错。