[jira] [Created] (ARROW-11487) [Python] Can't create array from Categorical with numpy 1.20

["Skipper Seabold (Jira)" <ji...@apache.org>]

Skipper Seabold created ARROW-11487:
---------------------------------------

             Summary: [Python] Can't create array from Categorical with numpy 1.20
                 Key: ARROW-11487
                 URL: https://issues.apache.org/jira/browse/ARROW-11487
             Project: Apache Arrow
          Issue Type: Bug
          Components: Python
    Affects Versions: 2.0.0
         Environment: OSX, numpy 1.20.0, pyarrow 2.0. pandas 1.2.1
            Reporter: Skipper Seabold


Upgraded to numpy 1.20, and some of my pipelines started to fail.

With numpy 1.20

 
{code:java}
In [16]: pa.lib.array(pd.Categorical(['a', 'b', 'c']))
---------------------------------------------------------------------------
ArrowTypeError                            Traceback (most recent call last)
<ipython-input-16-f1ab121f9533> in <module>
----> 1 pa.lib.array(pd.Categorical(['a', 'b', 'c']))~/.miniconda3/lib/python3.7/site-packages/pyarrow/array.pxi in pyarrow.lib.array()~/.miniconda3/lib/python3.7/site-packages/pyarrow/array.pxi in pyarrow.lib._codes_to_indices()~/.miniconda3/lib/python3.7/site-packages/pyarrow/array.pxi in pyarrow.lib.array()~/.miniconda3/lib/python3.7/site-packages/pyarrow/array.pxi in pyarrow.lib._ndarray_to_array()~/.miniconda3/lib/python3.7/site-packages/pyarrow/array.pxi in pyarrow.lib._ndarray_to_type()~/.miniconda3/lib/python3.7/site-packages/pyarrow/error.pxi in pyarrow.lib.check_status()ArrowTypeError: Did not pass numpy.dtype object

{code}
With 1.19.1
{code:java}
In [13]: pa.lib.array(pd.Categorical(['a', 'b', 'c']))
Out[13]:
<pyarrow.lib.DictionaryArray object at 0x7febac27ad50>-- dictionary:
  [
    "a",
    "b",
    "c"
  ]
-- indices:
  [
    0,
    1,
    2
  ]
{code}
 



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