representing physical units

[Michael Amrhein]

Russ schrieb:
> I know that python packages are available for representing physical
> units, but I am getting frustrated trying to find them and determine
> which is the best.
> 
> Rather than just using conventional dimensionless numbers with implicit
> units, I would like to have a way to explicitly represent the units. If
> incompatible units are added or subtracted, I would like to have an
> error detected. Auto-conversions (e.g., from feet to miles) to enforce
> consistency before adding or subtracting are not necessary. I would
> even like to be able to multiply units. For example, I would like to
> have meters returned when I multiply meters/second by seconds.
> 
> Where can I find a good package that does this? Thanks.
> 

Look at http://sourceforge.net/projects/unum/
Enjoy
Michael