built-package format for Python

 A wheel is a ZIP-format archive with a specially formatted filename and the
 `.whl` extension. It is designed to contain all the files for a PEP 376
 compatible install in a way that is very close to the on-disk format.
 .
 The wheel project provides a `bdist_wheel` command for setuptools. Wheel
 files can be installed with `pip`.
 .
 This is the Python 3 compatible package.