Comment 1 for bug 285936

Sandbox removed upstream.

http://sourceforge.net/project/shownotes.php?release_id=660191&group_id=27747:
Sandbox Removed
---------------
While porting SciPy to NumPy in 2005, several packages and modules
were moved into ``scipy.sandbox``. The sandbox was a staging ground
for packages that were undergoing rapid development and whose APIs
were in flux. It was also a place where broken code could live. The
sandbox has served its purpose well, but was starting to create
confusion. Thus ``scipy.sandbox`` was removed. Most of the code was
moved into ``scipy``, some code was made into a ``scikit``, and the
remaining code was just deleted, as the functionality had been
replaced by other code.