I have tried installing the binary from lfd.uci.edu/~gohlke/pythonlibs/#pyqt4 for python 3.5 and 3.6 both. Still it is not working. Now it throws DLL error. How to fix it?
builtins.ImportError: DLL load failed: The specified module could not be found
A quick look inside the .whi for Python 3.6 with dependency walker suggests that the package requires msvcp140.dll and vcruntime140.dll which are part of the Visual C++ Redistributable for Visual Studio 2015