NumPy库导入错误：DLL加载失败：无法找到指定的程序

Question

我在使用Windows 10上的Visual Studio 2017学习python。当我试图将NumPy库导入到我的代码中时，出现此错误。我曾尝试卸载并重新安装，在ImportError: DLL load failed when importing Numpy installed in conda virtual environment的每条指令中查找libiomp5md.dll，但以no为准。

Traceback (most recent call last): 
    File "C:\Program Files\Python36\lib\site-packages\numpy\core\__init__.py", line 16, in <module> 
from . import multiarray 
ImportError: DLL load failed: The specified procedure could not be found. 

During handling of the above exception, another exception occurred: 

Traceback (most recent call last): 
    File "C:\Users\adm\documents\visual studio 2017\Projects\Web Scraping\Web Scraping\Web_Scraping.py", line 17, in <module> 
import numpy 
    File "C:\Program Files\Python36\lib\site-packages\numpy\__init__.py", line 142, in <module> 
from . import add_newdocs 
    File "C:\Program Files\Python36\lib\site-packages\numpy\add_newdocs.py", line 13, in <module> 
from numpy.lib import add_newdoc 
    File "C:\Program Files\Python36\lib\site-packages\numpy\lib\__init__.py", line 8, in <module> 
from .type_check import * 
    File "C:\Program Files\Python36\lib\site-packages\numpy\lib\type_check.py", line 11, in <module> 
import numpy.core.numeric as _nx 
    File "C:\Program Files\Python36\lib\site-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: DLL load failed: The specified procedure could not be found. 

Answer 1

要短：

尝试将Python环境切换到Python 2.7，它可以解决这个问题。

我也有同样的问题。 我注意到你使用Python 3.6（以前，我也使用Python 3.6）。 而我使用Python 2.7后，它解决了我的问题。

我想用numpy & scipy库和VS2017给我带来了很多错误！ 我做了一些搜索之后，我通过安装whl包来解决所有问题http://www.lfd.uci.edu/~gohlke/pythonlibs/#numpy手动

Answer 2

最新版本好像坏了。安装旧版本：

pip3 uninstall numpy 
pip3 install 'numpy<1.13'