BUG: Fix json_normalize 'meta' validation #63136
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nocoding03
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Updated the _validate_meta function to accept a string or a list of strings/lists of strings as input.
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@rhshadrach could you please take a look at this PR？ |
rhshadrach
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Nov 18, 2025
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Looking good! It seems to me the meta argument is not expected to be large data (e.g. hundreds of entries) and so these instance checks are okay. Also it seems questionable to me whether this should go through deprecation. I'd like another eye here - cc @mroeschke
Removed tests for non-string meta in json_normalize.
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mroeschke
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Nov 25, 2025
Update _validate_meta function to accept None as a valid input.
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LGTM merge when ready @rhshadrach
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Thanks @nocoding03 |
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doc/source/whatsnew/vX.X.X.rstfile if fixing a bug or adding a new feature.AGENTS.md.Currently,
json_normalizeexhibits inconsistent behavior when using non-string keys in themetaparameter:meta=[12](withoutrecord_path) - incorrectly worksmeta=[12](withrecord_path) - correctly fails with TypeErrorThis inconsistency violates the principle of least surprise and contradicts the documented API.