[ARROW-2151] [Python] Error when converting from list of uint64 arrays

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.8.0
• Fix Version/s: 0.9.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/18118
• Assignee: Antoine Pitrou
• Reporter: Antoine Pitrou
• Created: 13/Feb/18 14:13
• Updated: 11/Jan/23 07:19
• Resolved: 15/Feb/18 17:50

Description

>>> pa.array(np.uint64([0,1,2]), type=pa.uint64())
<pyarrow.lib.UInt64Array object at 0x7f0e6c1eab88>
[
  0,
  1,
  2
]
>>> pa.array([np.uint64([0,1,2])], type=pa.list_(pa.uint64()))
Traceback (most recent call last):
  File "<ipython-input-70-1b103d3e4574>", line 1, in <module>
    pa.array([np.uint64([0,1,2])], type=pa.list_(pa.uint64()))
  File "array.pxi", line 181, in pyarrow.lib.array
  File "array.pxi", line 36, in pyarrow.lib._sequence_to_array
  File "error.pxi", line 98, in pyarrow.lib.check_status
ArrowException: Unknown error: /home/antoine/arrow/cpp/src/arrow/python/builtin_convert.cc:979 code: AppendPySequence(seq, size, real_type, builder.get())
/home/antoine/arrow/cpp/src/arrow/python/builtin_convert.cc:402 code: static_cast<Derived*>(this)->AppendSingle(ref.obj())
/home/antoine/arrow/cpp/src/arrow/python/builtin_convert.cc:402 code: static_cast<Derived*>(this)->AppendSingle(ref.obj())
/home/antoine/arrow/cpp/src/arrow/python/builtin_convert.cc:542 code: CheckPyError()
an integer is required

More simply, it also fails with a sequence of Numpy uint64 scalars:

>>> pa.array([np.uint64(1)], type=pa.uint64())
Traceback (most recent call last):
  File "<ipython-input-71-679cb6c34137>", line 1, in <module>
    pa.array([np.uint64(1)], type=pa.uint64())
  File "array.pxi", line 181, in pyarrow.lib.array
  File "array.pxi", line 36, in pyarrow.lib._sequence_to_array
  File "error.pxi", line 98, in pyarrow.lib.check_status
ArrowException: Unknown error: /home/antoine/arrow/cpp/src/arrow/python/builtin_convert.cc:979 code: AppendPySequence(seq, size, real_type, builder.get())
/home/antoine/arrow/cpp/src/arrow/python/builtin_convert.cc:402 code: static_cast<Derived*>(this)->AppendSingle(ref.obj())
/home/antoine/arrow/cpp/src/arrow/python/builtin_convert.cc:542 code: CheckPyError()
an integer is required

Issue Links

• links to: GitHub Pull Request #1602