incorrect wheel on PyPI
The current wheel on PyPI unconditionally installs an
easy_install-3.3 entry point,
regardless of the installing Python version. It also strangely installs all entry points only with a
.pya suffix, and does not make the entry points executable. The result of
pip install --upgrade --use-wheel setuptools is that no setuptools entry points are actually available.
My guess is that the setuptools wheel will not work properly on any Python other than Python 3.3 on Windows, but the wheel's file spec suggests it is appropriate for all Python versions on all platforms.