[Numpy-discussion] Corrupted installation?

Tom Cook tom.k.cook at gmail.com
Tue Jul 3 07:59:23 EDT 2018


I have a remote sensing platform that uses Numpy on a raspberry pi.  There
are about a dozen of these installed.  Three days ago, the Python part of
the software started crashing during startup, with this exception message:

Traceback (most recent call last):
  File "/home/azi/board/sensor_logger.py", line 16, in <module>
    from board.measurement.data import Expression, MeasurementData
  File "/home/azi/board/measurement/data.py", line 2, in <module>
    import numpy as np
  File "/usr/lib/python3/dist-packages/numpy/__init__.py", line 153, in
<module>
    from . import add_newdocs
  File "/usr/lib/python3/dist-packages/numpy/add_newdocs.py", line 13, in
<module>
    from numpy.lib import add_newdoc
  File "/usr/lib/python3/dist-packages/numpy/lib/__init__.py", line 8, in
<module>
    from .type_check import *
  File "/usr/lib/python3/dist-packages/numpy/lib/type_check.py", line 11,
in <module>
    import numpy.core.numeric as _nx
  File "/usr/lib/python3/dist-packages/numpy/core/__init__.py", line 7, in
<module>
    from . import umath
SystemError: initialization of umath raised unreported exception

I'm running numpy 1.8.2 on python 3.4.2 on a Raspberry Pi running Raspbian
Jessie.  I realise these are somewhat old, but as the software is running
in the field (and I mean literally in a field - on another continent) I'm
not in a great position to update them.

Can anyone give me a pointer on how to debug this?  As far as I can tell,
umath.cpython-34m-arm-linux-gnueabihf.so has not changed recently.  In
fact, as far as I can tell, nothing changed around the time this stopped
working.  But I guess something must have!

Regards,
Tom
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