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`pandas.tseries.frequencies.to_offset` should accept arguments of type `datetime.timedelta`

good first issue

#1705

· AguileraG opened

on Mar 17, 2026

`Index.droplevel()` should not be permitted

#1678

· Dr-Irv opened

on Feb 18, 2026

Use `Literal` instead of `str` in `DataFrame.transform`

#1676

· cmp0xff opened

on Feb 15, 2026

3.0 compatibility tracker

#1654

· loicdiridollou opened

on Feb 4, 2026

`mypy` recognises `[1]` also as `SequenceNotStr[str]`.

#1609

· cmp0xff opened

on Dec 29, 2025

2.3 compatibility tracker

#1601

· cmp0xff opened

on Dec 26, 2025

CLN: Audit usage of `np_ndarray` and switch to `np_1darray` where possible.

#1588

· Dr-Irv opened

on Dec 24, 2025

2.2 compatibility tracker

#1587

· cmp0xff opened

on Dec 24, 2025

2.1 compatibility tracker

#1580

· cmp0xff opened

on Dec 23, 2025

2.0 compatibility tracker

#1579

· cmp0xff opened

on Dec 23, 2025

Add capability to test for `Never`

#1572

· loicdiridollou opened

on Dec 19, 2025

[pyright] `DataFrame.columns` becomes `Never` by `pyright` after assignment and `raise` in loop

#1560

· cmp0xff opened

on Dec 17, 2025