> NumPy and SciPy are not available for many Python users, including those > using a Python implementation for which there is no Numpy support > <URL:http://new.scipy.org/faq.html#python-version-support> and those for > whom large, dependency-heavy third-party packages are too much burden. > > See the Rationale of PEP 450 for more reasons why “install NumPy” is not > a feasible solution for many use cases, and why having ‘statistics’ as a > pure-Python, standard-library package is desirable.
+1 -- http://mail.python.org/mailman/listinfo/python-list