In the solution below I used python3.4 as binary, but it’s safe to use with any version or binary of python. it works fine on windows too (except the downloading pip with wget obviously but just save the file locally and run it with python).
This is great if you have multiple versions of python installed, so you can manage external libraries per python version.
So first, I’d recommend get-pip.py, it’s great to install pip :
wget https://bootstrap.pypa.io/get-pip.py
Then you need to install pip for your version of python, I have python3.4 so for me this is the command :
python3.4 get-pip.py
Now pip is installed for python3.4 and in order to get libraries for python3.4 one need to call it within this version, like this :
python3.4 -m pip
So if you want to install numpy you would use :
python3.4 -m pip install numpy
Note that numpy is quite the heavy library. I thought my system was hanging and failing. But using the verbose option, you can see that the system is fine :
python3.4 -m pip install numpy -v
This may tell you that you lack python.h but you can easily get it :
On RHEL (Red hat, CentOS, Fedora) it would be something like this :
yum install python34-devel
On debian-like (Debian, Ubuntu, Kali, …) :
apt-get install python34-dev
Then rerun this :
python3.4 -m pip install numpy -v