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DOC: document pd.col Expression objects#66370

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DOC: document pd.col Expression objects#66370
Joosboy wants to merge 1 commit into
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Joosboy:docs/63084-document-expression

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@Joosboy Joosboy commented Jul 19, 2026

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Provides an API documentation page for pandas.api.typing.Expression (returned by pd.col) per maintainer discussion.

  • Adds Expression to numpydoc_validation_exclude because it follows relaxed rules (no constructor, no examples).

  • Adds api.typing.Expression to the Top-level evaluation section in general_functions.rst.

  • Explains in the docstring that available attributes depend on the evaluation context.

  • closes DOC: missing docs for pd.col Expression objects #63084

  • Tests added and passed

  • All code checks passed

  • Added type annotations

  • Added an entry in the latest whatsnew

  • I have reviewed and followed all the contribution guidelines

  • If I used AI to develop this pull request, I prompted it to follow AGENTS.md.

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DOC: missing docs for pd.col Expression objects

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