Error while running a custom C++ plugin in PyQt5

Hello,

I am currently trying to create a custom plugin using C++ ( MSVC 2015 , x64) , Python (3.5.4 , x64) , Qt (5.12.3, msvc2015_64 ) & PyQt (Installed on my machine using pip.exe )
The custom widget builds fine, the .dll and .pyd files are created properly without any errors.
However, when I use this custom widget and try to import it in python, it gives me an error: "ValueError: PyCapsule_GetPointer called with incorrect name".
PyQt applications work properly in python though, only custom widgets give me this problem.

I never faced any such issue when I was creating c++ widgets while using older version of PyQt ( Python 3.4 , Qt 5.4.0 )
Do I have to write something extra or different in the configure.py files while building custom widgets?
Any help would be welcome!!!

Thanks,
Deepak

Larsen & Toubro Limited

www.larsentoubro.com

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