[ARROW-2008] [Python] Type inference for int32 NumPy arrays (expecting list<int32>) returns int64 and then conversion fails

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.0
• Component/s: Python
• External issue URL: https://github.com/apache/arrow/issues/17990
• Assignee: Wes McKinney
• Reporter: Wes McKinney
• Created: 18/Jan/18 01:24
• Updated: 11/Jan/23 07:18
• Resolved: 22/Feb/18 15:46

Description

See report in https://github.com/apache/arrow/issues/1430

arrow::py::InferArrowType is called, when traverses the array as though it were any other Python sequence, and NumPy int32 scalars are not recognized as such