Pint is a Python package to define, operate and manipulate physical
quantities: the product of a numerical value and a unit of measurement.
It allows arithmetic operations between them and conversions from and
to different units.

It is distributed with a comprehensive list of physical units, prefixes
and constants. Due to its modular design, you can extend (or even
rewrite!) the complete list without changing the source code. It
supports a lot of numpy mathematical operations without monkey patching
or wrapping numpy.

NOTE: Unable to support newer versions due to requiring newer version
of python than is available in Slackware 15.0 (python 3.11).
