Single-source package version via setuptools dynamic versioning

[anevolbap]

Summary

Single-source the package version from causalpy/version.py using setuptools dynamic versioning. Removes the duplicate version = "0.8.0" from pyproject.toml.

Fixes #155

Changes

• Replace static version in [project] with dynamic = ["version"]
• Add [tool.setuptools.dynamic] section pointing to causalpy.version.__version__

Testing

• pip install -e . resolves version correctly
• python -c "import causalpy; print(causalpy.__version__)" returns 0.8.0
• importlib.metadata.metadata('CausalPy')['Version'] returns 0.8.0
• All pre-commit hooks pass (--all-files)
• Full test suite passes (799 passed, 5 skipped)

Checklist

• No new dependencies
• Pre-commit hooks pass
• Editable install works
• Package metadata resolves correctly

[github-actions]

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[read-the-docs-community]

Documentation build overview

📚 causalpy | 🛠️ Build #33074668 | 📁 Comparing 8c7bed5 against latest (1cf3387)

  🔍 Preview build  

249 files changed · + 58 added · ± 190 modified · - 1 deleted

+ Added

• notebooks/sdid_pymc.html
• api/generated/causalpy.constants.html
• api/generated/causalpy.experiments.staggered_did.StaggeredDifferenceInDifferences.plot_group_time.html
• api/generated/causalpy.experiments.synthetic_difference_in_differences.SyntheticDifferenceInDifferences.algorithm.html
• api/generated/causalpy.experiments.synthetic_difference_in_differences.SyntheticDifferenceInDifferences.effect_summary.html
• api/generated/causalpy.experiments.synthetic_difference_in_differences.SyntheticDifferenceInDifferences.fit.html
• api/generated/causalpy.experiments.synthetic_difference_in_differences.SyntheticDifferenceInDifferences.generate_report.html
• api/generated/causalpy.experiments.synthetic_difference_in_differences.SyntheticDifferenceInDifferences.get_plot_data.html
• api/generated/causalpy.experiments.synthetic_difference_in_differences.SyntheticDifferenceInDifferences.get_plot_data_bayesian.html
• api/generated/causalpy.experiments.synthetic_difference_in_differences.SyntheticDifferenceInDifferences.get_plot_data_ols.html
• and 48 more...

± Modified

• 404.html
• genindex.html
• index.html
• py-modindex.html
• references.html
• _modules/index.html
• api/index.html
• knowledgebase/design_notation.html
• knowledgebase/estimands.html
• knowledgebase/quasi_dags.html
• and 180 more...

- Deleted

• api/generated/causalpy.experiments.base.BaseExperiment.plot.html

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.51%. Comparing base (13af0ef) to head (5f5ca1a).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #850   +/-   ##
=======================================
  Coverage   95.51%   95.51%           
=======================================
  Files          98       98           
  Lines       15868    15868           
  Branches      931      931           
=======================================
  Hits        15157    15157           
  Misses        504      504           
  Partials      207      207           

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[anevolbap]

@drbenvincent this is ready for review. CI fully green.

Heads-up on the approach choice: the #155 thread floated flit, setuptools-scm, and bump2version. This PR sticks with the existing setuptools backend and just adds [tool.setuptools.dynamic]. Minimal change, no backend migration. Both read paths verified: causalpy.__version__ and importlib.metadata.metadata('CausalPy')['Version'] return 0.8.0. Thanks!

[drbenvincent]

Thanks @anevolbap — this is a clean, well-scoped change for #155. CI is green but the last run is from late April and the branch is now ~39 commits behind main, so those checks no longer validate against current packaging. Could you sync the branch with main (merge or rebase) so CI re-runs against the latest? Once it's green I'll review and we can get this merged.

[anevolbap]

> Thanks @anevolbap — this is a clean, well-scoped change for #155. CI is green but the last run is from late April and the branch is now ~39 commits behind main, so those checks no longer validate against current packaging. Could you sync the branch with main (merge or rebase) so CI re-runs against the latest? Once it's green I'll review and we can get this merged.

Green, ready to merge.

[drbenvincent]

Automated triage

Recommendation: review:high — no decision gate identified.

Why:

• Changes pyproject.toml build configuration: replaces static version with dynamic = ["version"] pointing to causalpy/version.py.
• Affects the PyPI release workflow and package metadata — a release/deployment change.
• All CI checks pass, but PR is blocked (merge conflict).

Review focus:

1. Verify that setuptools dynamic versioning correctly resolves the version in all packaging scenarios (sdist, wheel, editable install, pip).
2. Check that the causalpy/version.py file exists and is not accidentally excluded from the package.
3. Confirm the PyPI release CI workflow still works with dynamic versioning.

Confidence: high

[anevolbap]

Synced with main: rebased the single commit onto current main (clean, no conflicts) and re-ran CI. All checks pass. The two skipped jobs are the release-only Test PyPI / PyPI publish steps.

Verified the dynamic-versioning packaging paths:

• python -m build produces causalpy-0.8.0.tar.gz and causalpy-0.8.0-py3-none-any.whl; sdist PKG-INFO and wheel METADATA both report Version: 0.8.0.
• causalpy/version.py ships in both sdist and wheel (packages.find only excludes test*/docs*).
• Fresh wheel install and pip install -e . both resolve importlib.metadata.version("CausalPy") == "0.8.0".
• The release workflow build job (build sdist+wheel, install, import, version-check) passes. The Test PyPI / publish jobs are release-event-gated, so this PR exercises everything except the upload itself.

One note: the version comes from causalpy/version.py, not from git tags, so releases still need version.py bumped before tagging (same as today). The gain is that the wheel/sdist metadata version can no longer drift from causalpy.__version__, since both derive from that file.