Antoine Pitrou created ARROW-5374:
-------------------------------------
Summary: [Python] pa.read_record_batch() doesn't work
Key: ARROW-5374
URL: https://issues.apache.org/jira/browse/ARROW-5374
Project: Apache Arrow
Issue Type: Bug
Components: Python
Reporter: Antoine Pitrou
{code:python}
>>> batch = pa.RecordBatch.from_arrays([pa.array([b"foo"], type=pa.utf8())],
>>> names=['strs'])
>>>
>>> stream = pa.BufferOutputStream()
>>> writer = pa.RecordBatchStreamWriter(stream, batch.schema)
>>> writer.write_batch(batch)
>>>
>>>
>>> writer.close()
>>>
>>>
>>> buf = stream.getvalue()
>>>
>>>
>>> pa.read_record_batch(buf, batch.schema)
>>>
>>>
Traceback (most recent call last):
File "<ipython-input-31-4f168f453f3a>", line 1, in <module>
pa.read_record_batch(buf, batch.schema)
File "pyarrow/ipc.pxi", line 583, in pyarrow.lib.read_record_batch
check_status(ReadRecordBatch(deref(message.message.get()),
File "pyarrow/error.pxi", line 87, in pyarrow.lib.check_status
raise ArrowIOError(message)
ArrowIOError: Expected IPC message of type schema got record batch
{code}
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