PEP 450: Adding A Statistics Module To The Standard Library
> For many people, installing numpy may be difficult or impossible.  For example, people in corporate environments may have to go through a difficult, time-consuming process before being permitted to install third-party software.I do not regard this as a good justification for putting something in the standard library! If you don't have root access, use vitualenv (which you might want to do anyway) and install the package somewhere under your home directory.