[jira] [Created] (ARROW-6878) [Python] pa.array() does not handle list of dicts with bytes keys correctly under python3

["Zhuo Peng (Jira)" <ji...@apache.org>]

Zhuo Peng created ARROW-6878:
--------------------------------

             Summary: [Python] pa.array() does not handle list of dicts with bytes keys correctly under python3
                 Key: ARROW-6878
                 URL: https://issues.apache.org/jira/browse/ARROW-6878
             Project: Apache Arrow
          Issue Type: Bug
            Reporter: Zhuo Peng


It creates sub-arrays with nulls filled, instead of the provided values.

$ python

Python 3.6.8 (default, Jan 3 2019, 03:42:36) 
[GCC 8.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyarrow as pa
>>> pa.__version__
'0.15.0'
>>> a = pa.array([\{b"a": [1, 2, 3]}])
>>> a
<pyarrow.lib.StructArray object at 0x7fdcb4c28168>
-- is_valid: all not null
-- child 0 type: list<item: int64>
 [
 null
 ]
>>> a = pa.array([\{"a": [1, 2, 3]}])
>>> a
<pyarrow.lib.StructArray object at 0x7fdcb4c28108>
-- is_valid: all not null
-- child 0 type: list<item: int64>
 [
 [
 1,
 2,
 3
 ]
 ]

 

It works under python2.



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