[ARROW-1216] Numpy arrays cannot be created from Arrow Buffers on Python 2

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.4.1
• Fix Version/s: 0.5.0
• Component/s: Python
• External issue URL: https://github.com/apache/arrow/issues/17011
• Assignee: Philipp Moritz
• Reporter: Philipp Moritz
• Created: 15/Jul/17 12:12
• Updated: 11/Jan/23 07:13
• Resolved: 15/Jul/17 20:10

Description

This can be reproduced by installing pyarrow in Anaconda2 and then running

In [1]: import pyarrow

In [2]: import pyarrow as pa

In [3]: ba = bytearray(20)

In [5]: b = pa.frombuffer(ba)

In [6]: import numpy as np

In [7]: np.frombuffer(b)
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-7-62b103a5000b> in <module>()
----> 1 np.frombuffer(b)

AttributeError: 'pyarrow.lib.Buffer' object has no attribute '__buffer__'