hard vs. soft dependencies

[lheagy]

I think much like the discussion we had at the April 6 SimPEG meeting about keeping the core set of dependencies of SimPEG quite lightweight, it would be good to do that for geoana as well.

Currently, the requirements are:

        'future',
        'numpy>=1.8',
        'scipy>=0.13',
        'matplotlib',
        'properties',
        'vectormath',
        'utm',
        'empymod'

#31 will remove the properties and vectormath dependencies.

I propose that the core set of dependencies be limited to

• numpy
• scipy

and that utm, empymod, matplotlib are all soft dependencies, much like we have done in discretize.

[lheagy]

Some of this has been resolved with removing properties (in #31), but we are still requiring utm for example, which isn't necessary for most geoana code

[prisae]

You could reduce the core dependencies to scipy only, as numpy is a dependency of scipy anyway and handled that way.

[jcapriot]

I have reduced it down to just numpy, scipy, and libdlf (which itself only depends on numpy).

[rowanc1]

If utm is removed, I think this will start to work in JupyterLite:

This would open up all sorts of possibilities for adding interactive widgets to static websites!

[jcapriot]

Well, that's great! Also, I was having some very odd build-matrix errors due to numba on the conda-forge side trying to release 0.4.1 on conda-forge/geoana-feedstock#21

[rowanc1]

I think that it should now work on pyodide, but it needs a built bundle:
https://packaging.python.org/en/latest/tutorials/packaging-projects/#generating-distribution-archives

This is the pyodide docs:
https://pyodide.org/en/stable/usage/faq.html#why-can-t-micropip-find-a-pure-python-wheel-for-a-package

Do you know how to do this @jcapriot?

For example this repo has:

geoana only has the source:

[jcapriot]

We could provide an py3 any-wheel. (There are external libraries in geoana, but I've been sure to have fall-back python only versions of them as well).

[rowanc1]

I think that if we get that up there we can do things like this really easily! This still requires a server, but would love to be able to bypass that and get it up and running in jupyter lite!

There are a few examples of doing that here.

[rowanc1]

Yep, tested locally and all we need is the geoana-0.5.0-py3-none-any.whl which is the result of python3 -m build in the repository as is and then getting that up to pypi. When that is done, it will work in JupyerLite/pyodide, and allows for all sorts of cool things. I will put an example together.

[rowanc1]

Works if we add that to the build!

geoana.mp4

Source:
https://rowanc1.github.io/geoana-docs/

Right now I am just hosting the built file on curvenote, but hopefully we can get it on pypi!