Joris Van den Bossche created ARROW-5859:
--------------------------------------------
Summary: [Python] Support ExtentionType on conversion to
numpy/pandas
Key: ARROW-5859
URL: https://issues.apache.org/jira/browse/ARROW-5859
Project: Apache Arrow
Issue Type: Improvement
Components: Python
Reporter: Joris Van den Bossche
Currently converting a Table of RecordBatch with an ExtensionType array to
pandas gives:
{{code}}
ArrowNotImplementedError: No known equivalent Pandas block for Arrow data of
type extension<arrow.py_extension_type> is known.
{{code}}
And similarly converting the array itself to a python object (to_pandas or
to_pylist) gives an ArrowNotImplementedError or a "KeyError: 28"
Initial support could be to fall back to the storage type.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
