Installing Python 3.x modules

[Neutronst4r]

Hello,
I have big problems installing python 3 modules. Specifically I need Matplotlib,Scipy and Numpy. The later is already installed. I downloaded the Sourcecode files from Sourceforge and tried

sudo python3 setup.py

inside the unpacked directory of the module. Of course I get an error message because I have no ******* idea what I am actually doing. I understand that many ubuntu applications need an older version of python to run (~2.7) but I want to use python 3+.

I read thing about virtual environment and all that stuff, but I dont understand it. I am going to use Ecplise for programming and it is working fine so far. I can also do

python3

in console and I enter python 3.3.1 in interactive mode:

neutronst4r@nibbler:~$ python3
Python 3.3.1 (default, Apr 17 2013, 22:30:32) 
[GCC 4.7.3] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>

I need to know how to install modules for a specific python version. Please help me!

[Cheesemill]

No need to download anything manually they are already in the repositories, just use the Ubuntu package management system like you would for any other piece of software. Either search for them in Synaptic if you want to use a GUI or run the following command to install them from the terminal.

sudo apt-get install python3-matplotlib python3-scipy python3-numpy

[Neutronst4r]

I feel very dumb now. Thank you very much!