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https://issues.apache.org/jira/browse/ARROW-2273?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rok Mihevc updated ARROW-2273:
------------------------------
External issue URL: https://github.com/apache/arrow/issues/18230
> Cannot deserialize pandas SparseDataFrame
> -----------------------------------------
>
> Key: ARROW-2273
> URL: https://issues.apache.org/jira/browse/ARROW-2273
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Affects Versions: 0.9.0
> Reporter: Mitar
> Assignee: Licht Takeuchi
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.10.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> >>> import pyarrow
> >>> import pandas
> >>> a = pandas.SparseDataFrame({'A': [1, 2, 3], 'B': [4, 5, 6], 'C': [7, 8,
> >>> 9]})
> >>> pyarrow.deserialize(pyarrow.serialize(a).to_buffer())
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File "serialization.pxi", line 441, in pyarrow.lib.deserialize
> File "serialization.pxi", line 404, in pyarrow.lib.deserialize_from
> File "serialization.pxi", line 257, in
> pyarrow.lib.SerializedPyObject.deserialize
> File "serialization.pxi", line 174, in
> pyarrow.lib.SerializationContext._deserialize_callback
> File
> ".../.virtualenv/arrow/lib/python3.6/site-packages/pyarrow/serialization.py",
> line 77, in _deserialize_pandas_dataframe
> return pdcompat.serialized_dict_to_dataframe(data)
> File
> ".../.virtualenv/arrow/lib/python3.6/site-packages/pyarrow/pandas_compat.py",
> line 450, in serialized_dict_to_dataframe
> for block in data['blocks']]
> File
> ".../.virtualenv/arrow/lib/python3.6/site-packages/pyarrow/pandas_compat.py",
> line 450, in <listcomp>
> for block in data['blocks']]
> File
> ".../.virtualenv/arrow/lib/python3.6/site-packages/pyarrow/pandas_compat.py",
> line 478, in _reconstruct_block
> block = _int.make_block(block_arr, placement=placement)
> File
> ".../.virtualenv/arrow/lib/python3.6/site-packages/pandas/core/internals.py",
> line 2957, in make_block
> return klass(values, ndim=ndim, fastpath=fastpath, placement=placement)
> File
> ".../.virtualenv/arrow/lib/python3.6/site-packages/pandas/core/internals.py",
> line 120, in __init__
> len(self.mgr_locs)))
> ValueError: Wrong number of items passed 3, placement implies 1
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