[ARROW-3953] Compat with pandas 0.24 rename of MultiIndex labels -> codes

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.12.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/15896
• Assignee: Joris Van den Bossche
• Reporter: Joris Van den Bossche
• Created: 07/Dec/18 12:21
• Updated: 11/Jan/23 07:30
• Resolved: 15/Dec/18 22:19

Description

Pandas deprecated the `MultiIndex.labels` in favor of `MultiIndex.codes` (https://github.com/pandas-dev/pandas/pull/23752). In the pandas parquet/feather tests, we are now seeing warnings about this (and I assume there will be warnings as well in pyarrow tests if running on pandas master).

Issue Links

• links to: GitHub Pull Request #3120