By default, the Beaglebone Black with Debian as of this writing doesn’t have packages like python-scipy in the repositories. This is simple to fix by enabling the “backports” repo as follows.
sudo nano /etc/apt/sources.list
and uncomment the line
deb http://ftp.debian.org/debian wheezy-backports main contrib non-free
save, then type
Note: Some of the Python packages might be of versions older than you’d like (e.g. Scipy 0.10).
You can try the
pip install method in those particular cases.