问题
I've tried to build PyQt from sources (with binary Qt 5.8.0 downloaded) on my Windows 7x64.
I did it by this tutorial: https://stackoverflow.com/a/40779370/2726900
I've entered Visual Studio 2015 Command Prompt, activated vcvarsall.bat amd64, activated qtenv2.bat.
Than I configured, built and installed SIP (no errors).
Than I configured PyQt (just added --sip C:/Python35/sip.exe) and successfully built and installed PyQt.
The filed like QtCore.pyi, QtCore.pyd, QtGui.pyi, QtGui.pyd and so on really appeared in my site-packages/PyQt5 folder.
Bug when I tried to import some modules from my installed PyQt5, it failed.
>>> from PyQt5 import QtGui
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: DLL load failed: The specified procedure could not be found.
Cannot you tell me, how can I fix it?
来源：https://stackoverflow.com/questions/44710033/pyqt-built-on-windows-dll-load-failed-the-specified-procedure-could-not-be-fou