On Sat, Apr 9, 2022 at 5:52 AM Steven D'Aprano <st...@pearwood.info> wrote:
> > Python is so painful to use for units I've actually avoided it, What have you tried? and what do you do instead? MathCAD, maybe? For my part, there is a bit of a barrier to entry: I need to pick a library, I need to get over the learning curve, etc. But I dont think having it as a Python built in would help much. Another BIG barrier for me is that in my real work, I need to do a lot of things with units that aren't strictly correct: equivalence of weight and mass (kg and lbs) equivalence of mass per volume and unitless (ppm and micrograms/liter) Really strange "units" like API Gravity, and slightly less ones like Specific Gravity These are all awkward to deal with ain a proper unit system that is specifically intended to not let you make these kinds of "errors". And a system that worked well for my line of work would likely be a disaster for others' So what barriers do you have? Also -- as someone has mentioned on this list -- nifty easy syntax would help mostly for scripting and "using Python as a calculator" -- so a plug-in for Jupyter or and a calculator application of some sort might be almost as good as built-in syntax. And the downsides of carrying units around with the built in numbers (overhead, numpy incompatibility) is substantial, and would be irrelevant. finally: give PInt a try -- it really is pretty nifty -- particularly in a notebook: https://colab.research.google.com/github/agile-geoscience/xlines/blob/master/notebooks/13_Physical_units_with_pint.ipynb -CHB -- Christopher Barker, PhD (Chris) Python Language Consulting - Teaching - Scientific Software Development - Desktop GUI and Web Development - wxPython, numpy, scipy, Cython
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