[ARROW-2240] [Python] Array initialization with leading numpy nan fails with exception

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.8.0
• Fix Version/s: 0.9.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/15674
• Assignee: Phillip Cloud
• Reporter: Florian Jetter
• Created: 01/Mar/18 15:59
• Updated: 11/Jan/23 07:19
• Resolved: 12/Mar/18 18:09

Description

 

Arrow initialization fails for string arrays with leading numpy NAN

import pyarrow as pa
import numpy as np

pa.array([np.nan, 'str'])
# Py3: ArrowException: Unknown error: must be real number, not str
# Py2: ArrowException: Unknown error: a float is required

Issue Links

• links to: GitHub Pull Request #1686