Only tangential to this but somebody might find it usefull. I’m doing lots of calculations in Python involving various units. I’m using a similar library called Pint. https://github.com/hgrecco/pint

My business is thermodynamics of power plants. Professionals in the industry tend to use convenient units like C, bars, kJ/kg and so on. But the formulas usualy need basic SI units. Using this library not only streamlines the conversion process but also keeps track of the unit itself. So instead of variable turbine_output_gj and turbine_output_mw I can have just turbine_output which is convenient.

It is hard to put a value on that but I believe it has already spared me many trivial mistakes that I had to explain to my clients.