Tom Augspurger

Zarr v2 relied on [asciitree](https://pypi.org/project/asciitree/) for this, I think as a required dependency. What do folks think of using [rich](https://pypi.org/project/rich/) instead, and possibly as an optional dependency?

One set of tests is failing because of a behavior difference between `.str.contains(..., na=None)` and `.str.contains(... na="")`. Both raise `NotImplementedError`, but with `na=None` we emit a warning first. Which do...

The second failure is for `cudf.pandas` and weakrefs: ```python from pandas import DataFrame import weakref df = DataFrame({"a": [0, 1], "b": [2, 3]}) for name in ("loc", "iloc", "at", "iat"):...

I've pushed a couple of test-only fixes, but if we decide to change the behavior in https://github.com/rapidsai/cudf/pull/19127#issuecomment-3046431952 then I'll push a fix here or handle that in a separate PR....

Added a "DO NOT MERGE" temporarily till Vyas has a chance to chime in on my proposed changes.

[One failure](https://github.com/rapidsai/cudf/actions/runs/16132020106/job/45522104996?pr=19127#step:11:1108) in the cudf.pandas tests: ``` FAILED python/cudf/cudf_pandas_tests/test_cudf_pandas.py::test_rmm_option_on_import[cuda] - AssertionError: assert 1 == 0 + where 1 = CompletedProcess(args=['python', '-m', 'cudf.pandas', '/__w/cudf/cudf/python/cudf/cudf_pandas_tests/data/profile_basic...mory\nRuntimeError: CUDA error at: /__w/rmm/rmm/cpp/src/cuda_device.cpp:46: cudaErrorMemoryAllocation out of...

IIRC, ZipStore has some instance level state that makes it hard to re-open. The file needs to be closed and the ZIP footer written before anyone else can open the...

> we should add a zipstore-specific exception here that instructs users how to open their zipstored data with a different mode I wonder how you'd do that... Looking more closely,...