Allow --project to refer to a pyproject.toml directly and reduce to a warning on other files#18513
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zanieb merged 3 commits intoastral-sh:mainfrom Mar 16, 2026
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…-sh#18508) Fix a regression from astral-sh#17714 where `--project pyproject.toml` stopped working. When `--project` points to a `pyproject.toml` file, resolve to its parent directory since downstream code expects a directory. For other file types, emit a warning (or error with preview flag) and let downstream code fail naturally if there is no ancestor project. https://claude.ai/code/session_01NSUgyAxK5iz4VXKFW2L5ja
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zanieb
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Mar 16, 2026
These tests only need to run `python --version`, so the build-system section is unnecessary and adds network dependency on setuptools. https://claude.ai/code/session_01NSUgyAxK5iz4VXKFW2L5ja
charliermarsh
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Mar 16, 2026
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Closes #18508
This unintentionally regressed in #17714 as it appeared that
--project <file>always failed but it actually succeeds if the file is has an ancestor directory with apyproject.toml.This also removes the warning for
--project [path/]pyproject.tomlas I think that's a fine use-case.