BUG: pytables with non-nano timedelta64 #63239
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jorisvandenbossche
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jorisvandenbossche
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Dec 1, 2025
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Looks good!
The consequence is that a file written with 3.0 (with a timedelta column) won't be readable by older pandas versions?
(although right now if you write non-nanos, they just come back as wrong values)
Can you add a whatsnew note as you had in #55622?
pandas/core/computation/pytables.py
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| # TODO: other timedelta64 units? 2025-11-30 only | ||
| # test_append_with_timedelta gets here |
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Could parametrize test_append_with_timedelta for the different units? (or is there already other coverage?)
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Correct.
Done. |
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Thanks! |
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doc/source/whatsnew/vX.X.X.rstfile if fixing a bug or adding a new feature.AGENTS.md.Surfaced by #63196, which currently xfails test_preserve_timedeltaindex_type. This implements a fix.