[ARROW-6900] [Python] PyArrow cant serialize pandas IntegerArray

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 0.15.0
• Component/s: Python
• Labels: pyarrow-serialization
• Environment: python 3.7
• External issue URL: https://github.com/apache/arrow/issues/23226
• Assignee: Unassigned
• Reporter: Sayed Mohammad Hossein Torabi
• Created: 16/Oct/19 08:44
• Updated: 11/Jan/23 07:50
• Resolved: 17/Feb/21 16:03

Description

PyArrow cant serialize pandas `IntegerArray` and return this error below:

SerializationCallbackError: pyarrow does not know how to serialize objects of type <class 'pandas.core.arrays.integer.IntegerArray'>.

To reproduce this bug just run this bunch of code

import pandas as pd 
import pyarrow as pa
from  pandas.core.arrays.integer import IntegerArray

int_array = pd.array([1, None, 3], dtype=pd.Int32Dtype())
pa.default_serialization_context().serialize(int_array).to_buffer().to_pybytes()