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Import error when using numpy 1.15

See original GitHub issue

Importing numexpr 2.7.2 fails with ImportError: numpy.core.multiarray failed to import when using numpy 1.15 (but works with 1.16):

(py36_test) C:\Users\KANDERSO\projects\rdtools>pip show numexpr
Name: numexpr
Version: 2.7.2
...

(py36_test) C:\Users\KANDERSO\projects\rdtools>pip install numpy==1.16
Collecting numpy==1.16
  Using cached numpy-1.16.0-cp36-cp36m-win_amd64.whl (11.9 MB)
Installing collected packages: numpy
  Attempting uninstall: numpy
    Found existing installation: numpy 1.15.0
    Uninstalling numpy-1.15.0:
      Successfully uninstalled numpy-1.15.0
Successfully installed numpy-1.16.0

(py36_test) C:\Users\KANDERSO\projects\rdtools>python -c "import numexpr"

(py36_test) C:\Users\KANDERSO\projects\rdtools>pip install numpy==1.15
Collecting numpy==1.15
  Using cached numpy-1.15.0-cp36-none-win_amd64.whl (13.5 MB)
Installing collected packages: numpy
  Attempting uninstall: numpy
    Found existing installation: numpy 1.16.0
    Uninstalling numpy-1.16.0:
      Successfully uninstalled numpy-1.16.0
Successfully installed numpy-1.15.0

(py36_test) C:\Users\KANDERSO\projects\rdtools>python -c "import numexpr"
ModuleNotFoundError: No module named 'numpy.core._multiarray_umath'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "C:\Users\KANDERSO\Software\Anaconda3\envs\py36_test\lib\site-packages\numexpr\__init__.py", line 26, in <module>
    from numexpr.interpreter import MAX_THREADS, use_vml, __BLOCK_SIZE1__
ImportError: numpy.core.multiarray failed to import

I know numpy 1.15 isn’t very recent anymore, but based on requirements.txt I think numpy>=1.7 is supposed to be supported right? Version info:

>>> sys.version
'3.6.12 |Anaconda, Inc.| (default, Sep  9 2020, 00:29:25) [MSC v.1916 64 bit (AMD64)]'

Issue Analytics

State:
Created 3 years ago
Comments:8 (6 by maintainers)

Top GitHub Comments

1reaction

FrancescAltedcommented, Jan 5, 2021

We are in 2021, so I would suggest to just drop support for Python 2.7.

1reaction

robbmcleodcommented, Jan 4, 2021

@kanderso-nrel What I’m thinking is trying to change setuptools build_requires when its running the command bdist_wheel. Then I can setup in GitHub Actions per-job pins for numpy to use the oldest reasonable version for each version of Python.

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