It also seems like people are overlooking an important fact: people find ambition attractive. So anyone without any ambition in life other than to collect a basic income while playing games may find themselves shunned by their preferred sex. If you want to date, then you'll probably want a job. And almost everybody wants to date (or at least to mate). Therefore there may be no basis for being afraid that basic income will reduce people's desire to go work.
Your scipy install is broken, it has nothing to do with his code. If you can't successfully run:
from scipy.stats import *
then it's not going to work.
Try installing a scientific python distribution like Enthought Canopy or Anaconda. On Unix systems it's possible to build it yourself, but on Windows unless you have the right compiler licenses and enjoy pain, you probably don't want to do that.
My suggestions would be to try running Canopy (Enthought) or Anaconda (Continuum), which come with all 'scientific' batteries included and make scientific libraries easier to install and to keep them up to date.
Your assumption relies on the fact that there would not exist a large enough sub-population of non-working members of society to avoid this issue (if you don't work you probably don't care if your partner does).
