Modernize to use pyproject.toml and drop versioneer

[eriknw]

• support Python 3.14 and drop Python 3.8
• some additional cleanup and modernization

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (688a812) to head (60f0e8d).
⚠️ Report is 7 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##            master      #607   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           13        13           
  Lines         1178      1181    +3     
=========================================
+ Hits          1178      1181    +3     

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[mrocklin]

Thanks for bringing us into the present Erik!

…

On Wed, Oct 15, 2025, 6:09 PM codecov[bot] ***@***.***> wrote: *codecov[bot]* left a comment (pytoolz/toolz#607) <#607 (comment)> Codecov <https://app.codecov.io/gh/pytoolz/toolz/pull/607?dropdown=coverage&src=pr&el=h1&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pytoolz> Report ❌ Patch coverage is 73.33333% with 4 lines in your changes missing coverage. Please review. ✅ Project coverage is 99.66%. Comparing base (688a812 <https://app.codecov.io/gh/pytoolz/toolz/commit/688a81257243640db5c4099bdd063f1c31810a72?dropdown=coverage&el=desc&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pytoolz>) to head (e2e70e1 <https://app.codecov.io/gh/pytoolz/toolz/commit/e2e70e1f6281997cc18115607cef34c812670899?dropdown=coverage&el=desc&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pytoolz> ). Files with missing lines <https://app.codecov.io/gh/pytoolz/toolz/pull/607?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pytoolz> Patch % Lines toolz/__init__.py <https://app.codecov.io/gh/pytoolz/toolz/pull/607?src=pr&el=tree&filepath=toolz%2F__init__.py&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pytoolz#diff-dG9vbHovX19pbml0X18ucHk=> 42.85% 4 Missing ⚠️ <https://app.codecov.io/gh/pytoolz/toolz/pull/607?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pytoolz> Additional details and impacted files @@ Coverage Diff @@## master #607 +/- ## ===========================================- Coverage 100.00% 99.66% -0.34% =========================================== Files 13 13 Lines 1178 1181 +3 ===========================================- Hits 1178 1177 -1 - Misses 0 4 +4 ☔ View full report in Codecov by Sentry <https://app.codecov.io/gh/pytoolz/toolz/pull/607?dropdown=coverage&src=pr&el=continue&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pytoolz> . 📢 Have feedback on the report? Share it here <https://about.codecov.io/codecov-pr-comment-feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pytoolz> . 🚀 New features to boost your workflow: - ❄️ Test Analytics <https://docs.codecov.com/docs/test-analytics>: Detect flaky tests, report on failures, and find test suite problems. — Reply to this email directly, view it on GitHub <#607 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AACKZTEMHBCZZB3OOBE4G5T3X3H2RAVCNFSM6AAAAACJJQ3KP2VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTIMBYGU4TKNBYGU> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[eriknw]

Thanks for bringing us into the present Erik!

You bet! I'm sure it's long past due. The impetus for this was to be PEP 517 compliant, which tools will begin to require soon.

@mrocklin, do you have any thoughts on what to put in the project.authors field in pyproject.toml? Right now I don't include it. Previously, we had author as 'https://raw.github.com/pytoolz/toolz/master/AUTHORS.md'.

I added pre-commit hooks that do basic checks and light linting via pyupgrade. I'm not adding black or ruff formatting yet to try to avoid disrupting PRs, many of which can potentially go in and are pretty old. I also wouldn't be against adding black or ruff, but I think that should be done in a separate PR.

Anyway, it's always a pleasure to work on toolz--the tests run so fast! There's still more cruft to clean up, but this PR takes a big step forward.

[eriknw]

Merging so I can continue to experiment with Trusted Publishing. I may do a release tomorrow (Thursday), so please provide any feedback here or as separate issue/PR as appropriate.

[mrocklin]

do you have any thoughts on ...

No immediate thoughts from me.

I also wouldn't be against adding black or ruff, but I think that should be done in a separate PR.

Makes sense to me. My intuition here is that if either of us want to improve infrastructure here we should feel free to do so. I thnk that we probably shouldn't change much functionality in toolz these days (unless we're planning on being active again for a while) but that there are probably lots of low hanging fruit for infrastructure or procedural changes.