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[jira] [Created] (ARROW-3399) Cannot serialize numpy matrix object


Mitar created ARROW-3399:
----------------------------

             Summary: Cannot serialize numpy matrix object
                 Key: ARROW-3399
                 URL: https://issues.apache.org/jira/browse/ARROW-3399
             Project: Apache Arrow
          Issue Type: Bug
    Affects Versions: 0.10.0
            Reporter: Mitar


This is a regression from 0.9.0 and happens with 0.10.0 with Python 3.6.5 on Linux.
{code:java}
from pyarrow import plasma
import numpy
import time
import subprocess
import os
import signal

m = numpy.matrix(numpy.array([[1, 2], [3, 4]]))

process = subprocess.Popen(['plasma_store', '-m', '1000000', '-s', '/tmp/plasma', '-d', '/dev/shm'], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, encoding='utf8', preexec_fn=os.setpgrp)
time.sleep(5)
client = plasma.connect('/tmp/plasma', '', 0)

try:
    client.put(m)
finally:
    client.disconnect()
    os.killpg(os.getpgid(process.pid), signal.SIGTERM)
{code}
Error:
{noformat}
  File "pyarrow/_plasma.pyx", line 397, in pyarrow._plasma.PlasmaClient.put
  File "pyarrow/serialization.pxi", line 338, in pyarrow.lib.serialize
  File "pyarrow/error.pxi", line 89, in pyarrow.lib.check_status
pyarrow.lib.ArrowNotImplementedError: This object exceeds the maximum recursion depth. It may contain itself recursively.{noformat}



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