Migrate from setuptools + setuptools_scm to hatchling + hatch-vcs

[hugovk]

Changes proposed in this pull request:

• Migrate from setuptools to hatchling
• And setuptools_scm to hatch-vcs
• With help from https://github.com/abravalheri/ini2toml/ and https://github.com/abravalheri/validate-pyproject/

[codecov]

Codecov Report

Merging #413 (dbbbcfe) into main (7f1de76) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #413   +/-   ##
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  Coverage   90.07%   90.07%           
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  Files          12       12           
  Lines        2186     2186           
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  Hits         1969     1969           
  Misses        217      217           

Flag	Coverage Δ
ubuntu-latest	90.07% <ø> (ø)

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[djmattyg007]

I’m curious what you found appealing about hatchling that made it worth using over something more well known like poetry.

[djmattyg007]

Does renovatebot support hatchling?

[hugovk]

I’m curious what you found appealing about hatchling that made it worth using over something more well known like poetry.

Well first of all, I'd like to move away from setuptools which is getting a bit old (or "setuptools is a hot mess of legacy code" :). It is being modernised, but there may be some disruption in the process (e.g. pypa/setuptools#3532).

Hatchling is standards compliant, and specifically built based on the new packaging standards for build backends (PEP 517/PEP 660) and the format for metadata declaration (PEP 621/PEP 631).

Also I haven't used Poetry much, so it doesn't gain much familiarity points.

And I've seen a lot of interest and other projects moving over, here's a few: https://hatch.pypa.io/latest/users/ (It's also the default option in this PyPA tutorial https://packaging.python.org/en/latest/tutorials/packaging-projects/.)

Does renovatebot support hatchling?

No, renovatebot doesn't support PEP 621 / hatchling: renovatebot/renovate#10187 But it doesn't matter as we're not pinning any dependencies there (as libraries shouldn't). We're only using it for GitHub Actions.

[ofek]

Any update on this?

[hugovk]

@djmattyg007 Do you have any further questions or concerns?

[djmattyg007]

Nope. I was just curious.

[hugovk]

Good stuff, let's get this merged! 🚀