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jeremy_rutman
Asked: 2021-11-11 20:21:47 +0800 CST

python3.10 with numpy - ModuleNotFoundError: No module named 'numpy.core._multiarray_umath'

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我正在尝试为 python3.10（不在 venv 中）安装 numpy。我使用安装了 python 3.10

sudo apt install python3.10

pip 似乎没有安装所以我做了

jeremy@jeremy-Blade:/$ python3.10 -m pip install numpy
jeremy@jeremy-Blade:/$ wget https://bootstrap.pypa.io/get-pip.py
jeremy@jeremy-Blade:/$ python3.10 get-pip.py
jeremy@jeremy-Blade:/$ python3.10 -m pip --version 
pip 21.3.1 from /home/jeremy/.local/lib/python3.10/site-packages/pip (python 3.10)

然后尝试


jeremy@jeremy-Blade:/$ python3.10 -m pip install numpy
Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: numpy in /usr/lib/python3/dist-packages (1.17.4)

但是当我尝试导入 numpy 时：

Python 3.10.0 (default, Oct  4 2021, 22:09:55) [GCC 9.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import numpy 
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/numpy/core/__init__.py", line 17, in <module>
    from . import multiarray
  File "/usr/lib/python3/dist-packages/numpy/core/multiarray.py", line 14, in <module>
    from . import overrides
  File "/usr/lib/python3/dist-packages/numpy/core/overrides.py", line 7, in <module>
    from numpy.core._multiarray_umath import (
ModuleNotFoundError: No module named 'numpy.core._multiarray_umath'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python3/dist-packages/numpy/__init__.py", line 142, in <module>
    from . import core
  File "/usr/lib/python3/dist-packages/numpy/core/__init__.py", line 47, in <module>
    raise ImportError(msg)
ImportError: 

IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE!

Importing the numpy c-extensions failed.
- Try uninstalling and reinstalling numpy.
- If you have already done that, then:
  1. Check that you expected to use Python3.10 from "/usr/bin/python3.10",
     and that you have no directories in your PATH or PYTHONPATH that can
     interfere with the Python and numpy version "1.17.4" you're trying to use.
  2. If (1) looks fine, you can open a new issue at
     https://github.com/numpy/numpy/issues.  Please include details on:
     - how you installed Python
     - how you installed numpy
     - your operating system
     - whether or not you have multiple versions of Python installed
     - if you built from source, your compiler versions and ideally a build log
...
Original error was: No module named 'numpy.core._multiarray_umath'

我的路是

jeremy@jeremy-Blade:/$env|grep PATH
LD_LIBRARY_PATH=/usr/local/cuda-10.2/targets/x86_64-linux/lib/stubs
PATH=/home/jeremy/.local/bin:/usr/local/cuda-10.2/bin:/usr/local/cuda-10.2/targets/x86_64-linux/lib/stubs:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin

（所以 PYTHONPATH 未设置 - 如果我将其设置为 /usr/bin/python3.10 这似乎不会改变任何东西），并且按照错误消息中的建议，我似乎在这里没有看到任何问题。（我为 python3.10 卸载并重新安装了 numpy，没有看到问题的变化）我的操作系统是 ubuntu 20.04。对不起，如果这是明显的或与 numpy 无关的东西。

python

1 个回答

  1. Best Answer

    看起来 python3.10 可以使用的 numpy (1.17) 的现有版本，实际上并不是所需的最低版本 (1.21)。升级可以解决问题：

    jeremy@jeremy-Blade:~$ python3.10 -m pip install --user --upgrade numpy
Requirement already satisfied: numpy in /usr/lib/python3/dist-packages (1.17.4)
Collecting numpy
  Using cached numpy-1.21.4-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (15.9 MB)
Installing collected packages: numpy
Successfully installed numpy-1.21.4
jeremy@jeremy-Blade:~$ python3.10 
Python 3.10.0 (default, Oct  4 2021, 22:09:55) [GCC 9.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import numpy
>>>
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