导入PyQt5时DLL加载失败

问题描述：

我已经在Windows平台上安装了PyQt5，并且遇到了importError：DLL加载失败。

I have installed PyQt5 on windows platform and and getting an importError: DLL load failed.

我已经使用以下命令安装了pyqt5

I have installed pyqt5 using the command

pip3 install pyqt5
Successfully installed pyqt5-5.8.1

我的Python版本如下：

My Python version is as follows:

Python 3.5.2 |Anaconda custom (64-bit)| (default, Jul  5 2016, 11:41:13) [MSC v.1900 64 bit (AMD64)] on win32

$ b上的[MSC v.1900 64 bit（AMD64）] $ b

导入错误如下：

The import Error is as follows:

from PyQt5.QtWidgets import QApplication
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: DLL load failed: The specified module could not be found.

感谢&问候

答

这是因为缺少 Python3.dll （存根dll），重新导出 Python3x.dll 函数，以便扩展的一个版本可以适用于多个版本的python。）

It is because of missing Python3.dll (stub dll, that re-exports Python3x.dll functions, so that one version of extension can work for multiple versions of python).

如果您的Python发行版未捆绑python3.dll，则可以尝试从WinPython（ https：// winpython。 github.io/ ）。

If your Python distro doesn't bundle python3.dll, you can try one from WinPython (https://winpython.github.io/).

至少2017/04/01版本应该有它。

At least the 2017/04/01 versions should have it.

1）下载WinPython（零版本即可；必须与Python一样是主版本-3.5 / 3.6-和位数-32/64-!!!）。

1) Download WinPython ('Zero' version suffices; must be same "main version" - 3.5/3.6 -and "bitness" - 32/64 - as your Python !!!).

2）提取到某个临时目录，将python3.dll粘贴到python3x.dll旁边的python目录中。

2) Extract to some temp directory, take the python3.dll and stick it into your python dir, next to the python3x.dll.

3）享受工作QT

导入PyQt5时DLL加载失败

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