Details
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Bug
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Status: Closed
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Major
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Resolution: Won't Fix
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0.15.1, 0.16.0
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None
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None
Description
The following data structure passed to `pa.array` raises a generic `TypeError`:
import pyarrow as pa pa.array([{'TestKey': [123456, 'foo']}])
Traceback (most recent call last): File "pyarrow_list_test.py", line 30, in <module> pa_array = pa.array([\{'TestKey': [123456, 'foo']}]) File "pyarrow/array.pxi", line 269, in pyarrow.lib.array File "pyarrow/array.pxi", line 38, in pyarrow.lib._sequence_to_array TypeError: an integer is required (got type str)
I understand there may be a way to overcome this by setting the `type` value as an argument to `pa.array`, but the use case here is storing results of a SQL query where the structure/type of the column is unknown.
If Arrow is ultimately unable to handle this data structure without a predefined `type` passed to `pa.array`, can the exception at least us the PyArrow namespace (e.g. `pa.lib.ArrowTypeError` or `pa.lib.ArrowNotImplementedError).
Any other workaround suggestions welcome.