Add units standard selection (and SI units support)

[kalou35]

It would be great for non-americans to have the option to switch units to international standard.

I guess some python libraries already provide such needed conversion tools.

[buddyd16]

To be completely transparent I wrote everything a bit selfishly with my own workflow in mind, with a select few things being unit independent. Based on what I have done so far I don't think adding SI unit support would take too much effort, though not a priority for me in my day to day, so being honest it may take a little bit to get implemented if it comes from just me.

[kalou35]

Thanks for the reply, you built an awesome open source tool, there's no selfishness here...

I just thought of this as an improvement that could increase user base (and thus maintenance, etc...) and ease of use.

I'd be glad to help but I'm not experienced in pyhton. I'll try and have a look at your code though.

[DougAJ4]

I have recently been looking at using Python units libraries linked to Excel via xlwings. You might find something useful at: https://newtonexcelbach.com/2018/07/15/working-with-units-in-excel-using-vba-and-python/ and https://newtonexcelbach.com/2018/07/29/units-and-solvers-with-pint-and-sympy/

[buddyd16]

Thanks @DougAJ4 will have a look thru that.