[BUG] Unable to set the `names` attribute of `DataFrame.columns`

rapidsai / cudf

cuDF - GPU DataFrame Library

https://docs.rapids.ai/api/cudf/stable/

Apache License 2.0

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Open Matt711 opened 1 day ago

Matt711 commented 1 day ago

Describe the bug See the reproducer

Steps/Code to reproduce bug cudf:

import cudf

df = cudf.DataFrame({"a":[1,2]})
print(df.columns.names)

df.columns.names = ["foo"]

print(df.columns.names)

[None]
[None]

pandas:

import pandas as pd

df = pd.DataFrame({"a":[1,2]})
print(df.columns.names)

df.columns.names = ["foo"]

print(df.columns.names)

[None]
['foo']

Expected behavior Match pandas

Matt711 commented 1 day ago

xref #17481

mroeschke commented 56 minutes ago