[ARROW-15783] [Python] Converting arrow MonthDayNanoInterval to pandas fails DCHECK

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 8.0.0
• Component/s: C++, Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/31226
• Assignee: Micah Kornfield
• Reporter: Micah Kornfield
• Created: 25/Feb/22 01:24
• Updated: 11/Jan/23 11:39
• Resolved: 04/Apr/22 08:48

Description

InitPandasStaticData is only called on python/pandas -> Arrow and not the reverse path

 

This causes the DCHECK to make sure the Pandas type is not null to fail if import code is never used.

 

A workaround to users of the library is to call pa.array([1]) which would avoid this issue.

Issue Links

• links to: GitHub Pull Request #12753