[denzil_correa]

The Enthought Python Distribution (EPD) includes most of these packages including but not limited to

    sklearn
    pandas
    numpy
    scipy 
    matplotlib
    statsmodels

and much more. It also has a 1-click installer. It has a free academic version.

http://www.enthought.com/products/epd.php

PS - I am not associated with Enthought in any way whatsoever.

[Aloisius]

Does easy_install not install these them for some reason?

[Maxious]

scipy/numpy has compile time dependencies which can take some time to resolve.