Add package stubs and structure

[goanpeca]

Add package structure for CLI and API to simplify review of #34 and #46

[liu-ziyang]

cc @aganders3 to review

[liu-ziyang]

the packaging workflow is failing: https://github.com/napari/packaging/actions/runs/3577842461/jobs/6017466411

I assume this is some GitHub action specific issue we have to fix to ship binary to QA testing?

[aganders3]

I see the intent here and overall this looks good to me. I just have a few nitpicks but the I'm sure everything can be cleaned up with #34 and #46.

For what it's worth I checked out this branch and was able to install both packages as well as run the stub tests locally.

[goanpeca]

Thanks for the comments @aganders3, added fixes :)

[liu-ziyang]

is this a typo or intended?

[goanpeca]

Intended the foldert structure for the pakcages is

package-name/src/module_name

[aganders3]

I think @potating-potato was referring to the =src. The syntax in setup.cfg here is confusing (bad) but this is not a typo. This gets parsed into a dictionary and that line will have an empty key: https://setuptools.pypa.io/en/latest/userguide/declarative_config.html#specifying-values

[goanpeca]

Ahhh got it, yes the syntax is weird. We can eventually migrate to a pyproject toml only and use hatch as the build system https://github.com/pypa/hatch

[liu-ziyang]

thanks for confirming! I indeed never seen this syntax before

[liu-ziyang]

No objection merging this, I give it a first pass and we can iterate on this quickly

[goanpeca]

Thanks for the reviews! Merging :)