And then ./venv/bin/pip install $(PACKAGE_ABS_PATH) was just doing an install from the current directory, so we ended up with the local dev version after all:
Building wheels for collected packages: python-docs-theme
Building wheel for python-docs-theme (pyproject.toml): started
Building wheel for python-docs-theme (pyproject.toml): finished with status 'done'
Created wheel for python-docs-theme: filename=python_docs_theme-2026.4-py3-none-any.whl size=47033 sha256=2ef5cfd56d04c28218e833d12a81b068b485bef38818c88da1b99c670bcb2ce3
Stored in directory: /tmp/pip-ephem-wheel-cache-36pb2g5u/wheels/9c/8a/8b/1187bbb4cb469b4e87f8aee1562b67ba81301f0ababe695fea
Successfully built python-docs-theme
Installing collected packages: python-docs-theme
Attempting uninstall: python-docs-theme
Found existing installation: python-docs-theme 2026.4
Uninstalling python-docs-theme-2026.4:
Successfully uninstalled python-docs-theme-2026.4
Successfully installed python-docs-theme-2026.4
After
Fix installing from sdist.
Remove PACKAGE_ABS_PATH and let the shell expand the normalised glob when pip runs, after the sdist is built. Also clear dist/ before building, so a stale tarball from a previous build can't make the glob match two files.
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The Makefile wasn't quite working as intended. This is used for RTD builds.
Before
It intends to build an sdist and then install from that. But:
https://app.readthedocs.org/projects/python-docs-theme-previews/builds/33742569/
This is because the filenames are now normalised and look like python_docs_theme-2026.4.tar.gz
But anyway, it was evaluating this before even running $(PYTHON) -m build:
So even the correct name wouldn't find it.
But it was then installing from PyPI as part of the normal docs build:
And then ./venv/bin/pip install $(PACKAGE_ABS_PATH) was just doing an install from the current directory, so we ended up with the local dev version after all:
Building wheels for collected packages: python-docs-theme Building wheel for python-docs-theme (pyproject.toml): started Building wheel for python-docs-theme (pyproject.toml): finished with status 'done' Created wheel for python-docs-theme: filename=python_docs_theme-2026.4-py3-none-any.whl size=47033 sha256=2ef5cfd56d04c28218e833d12a81b068b485bef38818c88da1b99c670bcb2ce3 Stored in directory: /tmp/pip-ephem-wheel-cache-36pb2g5u/wheels/9c/8a/8b/1187bbb4cb469b4e87f8aee1562b67ba81301f0ababe695fea Successfully built python-docs-theme Installing collected packages: python-docs-theme Attempting uninstall: python-docs-theme Found existing installation: python-docs-theme 2026.4 Uninstalling python-docs-theme-2026.4: Successfully uninstalled python-docs-theme-2026.4 Successfully installed python-docs-theme-2026.4After
Fix installing from sdist.
Remove PACKAGE_ABS_PATH and let the shell expand the normalised glob when pip runs, after the sdist is built. Also clear dist/ before building, so a stale tarball from a previous build can't make the glob match two files.