[jira] [Created] (ARROW-3374) [Python] Dictionary has out-of-bound index when creating DictionaryArray from Pandas with NaN

[Keith Kraus (JIRA)]

Keith Kraus created ARROW-3374:
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             Summary: [Python] Dictionary has out-of-bound index when creating 
DictionaryArray from Pandas with NaN
                 Key: ARROW-3374
                 URL: https://issues.apache.org/jira/browse/ARROW-3374
             Project: Apache Arrow
          Issue Type: Bug
          Components: Python
    Affects Versions: 0.10.0
            Reporter: Keith Kraus


Minimal reproducer:

{code:python}
import pandas as pd
import pyarrow as pa

pa.array(pd.Categorical(['a', 'b', 'c'], categories=['a', 'b']))
{code}



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