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Trouble with pandas test

Data engineering3 posts from 2 people2d active+00 posts in the last 7 days, 1 the 7 days before (fading)

Posts per day

Posts per day3 posts, Sep 4 to Sep 25

The posts behind it

3, newest first
PostDate
BUG: test assert methods failing on object dtype column with lists of different nestingWhen using `assert_series_equal` or `assert_frame_equal` with a Series/DataFrame with an object dtype column with lists of different nesting, I see a failure instead of the correct AssertionError. First, example with unequal flat list (here different length, but could also be...pandas-dev/pandasjorisvandenbosscheSep 187 days ago
TST: pandas/tests/api/test_api.py::TestApi::test_api fails when that directory is run on its own`TestApi.allowed_api_dirs` in `pandas/tests/api/test_api.py` lists `"internals"`, and `test_api` compares that list against `dir(pandas.api)`. But `pandas/api/__init__.py` does not import the `internals` submodule, and a submodule only shows up in its parent's `dir()` once...pandas-dev/pandasjbrockmendelSep 43 weeks ago
TST: test_duplicated_hashtable_impl monkeypatches _SIZE_CUTOFF on a path that never reads it`pandas/tests/indexes/multi/test_duplicates.py::test_duplicated_hashtable_impl` wraps its assertions in but nothing on the path under test reads `_SIZE_CUTOFF`. `MultiIndex.duplicated` is `get_group_index` + `hashtable.duplicated` on the codes - it never constructs an index...pandas-dev/pandasjbrockmendelSep 43 weeks ago

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Company or productPosts naming it
pandas3
About this problem

Evidence

3 posts from 2 people in 1 place, about 1 a week over 15 days. Mostly on pandas-dev/pandas.

Frustration Frustration 0 of 3· Seen on GitHub issues

How it was grouped

Posts about pandas with no known issue, sharing the word "test". First post Sep 4, 2026, latest Sep 18, 2026. Corroborated: 3 or more posts from 2 or more people or places. Method

History

  • 2026-09-25 Added: Trouble with pandas test (3 posts)

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