Antoine Pitrou created ARROW-2172:

             Summary: [Python] Incorrect conversion from Numpy array when 
stride % itemsize != 0
                 Key: ARROW-2172
             Project: Apache Arrow
          Issue Type: Bug
          Components: Python
    Affects Versions: 0.8.0
            Reporter: Antoine Pitrou
            Assignee: Antoine Pitrou

In the example below, the input array has a stride that's not a multiple of the 

>>> data = np.array([(42, True), (43, False)],
...:                dtype=[('x', np.int32), ('y', np.bool_)])
>>> data['x']
array([42, 43], dtype=int32)
>>> pa.array(data['x'], type=pa.int32())
<pyarrow.lib.Int32Array object at 0x7ff60a8415e8>

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