How to install python3 version of package via pip on Ubuntu?

Question

I have both python2.7 and python3.2 installed in Ubuntu 12.04.
The symbolic link python links to python2.7

Answer 1

1. You should install ALL dependencies:

   sudo apt-get install build-essential python3-dev python3-setuptools python3-numpy python3-scipy libatlas-dev libatlas3gf-base

2. Install pip3(if you have installed, please look step 3):

   sudo apt-get install python3-pip

3. Iinstall scikit-learn by pip3

   pip3 install -U scikit-learn

4. Open your terminal and entry python3 environment, type import sklearn to check it.

Gook Luck!