Numpy 在 Raspberry Pi 上導入錯誤 Python3？

Question

當我嘗試在 Python3 中導入 numpy 時出現錯誤。
我是通過pip3安裝的，安裝成功。

sudo pip3 install numpy

這是我嘗試導入 numpy 時的錯誤消息：

Python 3.5.3 (default, Sep 27 2018, 17:25:39)
[GCC 6.3.0 20170516] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import numpy
Traceback (most recent call last):
  File "/usr/local/lib/python3.5/dist-packages/numpy/core/__init__.py", line 16, in <module>
    from . import multiarray
ImportError: libf77blas.so.3: cannot open shared object file: No such file or directory

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.5/dist-packages/numpy/__init__.py", line 142, in <module>
    from . import add_newdocs
  File "/usr/local/lib/python3.5/dist-packages/numpy/add_newdocs.py", line 13, in <module>
    from numpy.lib import add_newdoc
  File "/usr/local/lib/python3.5/dist-packages/numpy/lib/__init__.py", line 8, in <module>
    from .type_check import *
  File "/usr/local/lib/python3.5/dist-packages/numpy/lib/type_check.py", line 11, in <module>
    import numpy.core.numeric as _nx
  File "/usr/local/lib/python3.5/dist-packages/numpy/core/__init__.py", line 26, in <module>
    raise ImportError(msg)
ImportError:
Importing the multiarray numpy extension module failed.  Most
likely you are trying to import a failed build of numpy.
If you're working with a numpy git repo, try `git clean -xdf` (removes all
files not under version control).  Otherwise reinstall numpy.

Original error was: libf77blas.so.3: cannot open shared object file: No such file or directory

Answer 1

將我的評論移至答案，因為它似乎對一些用戶有幫助。

您缺少核心numpy依賴項。 跑步

sudo apt-get install python-dev libatlas-base-dev

應該解決問題。

如果這不起作用，您可以嘗試安裝 RPi 特定版本的numpy ，請參閱此處的評論。

Answer 2

我將添加一個答案，因為我沒有足夠的聲譽來發表評論。

我在我的 Raspberry Pi 4 上遇到了這個問題。

在我的情況下，只需在命令行中運行即可解決此問題：

sudo apt-get install libatlas-base-dev

我以為最初我缺少一個 python 模塊依賴項，但這是一個 unix 依賴項，它不應該影響你的 python 虛擬環境

Answer 3

安裝libatlas-base-dev對我不起作用。

安裝numpy==1.15.1就可以了。