pip3 uninstall PyQt5
then openshot searched for all the PyQt5 modules in the system directories and was able to find QtWebKit.
I have a workaround for this. I noticed that I had PyQt5 installed in my
~/.local/lib directory. This version had most of the PyQt5 submodules,
but not QtWebKit or QtWebKitWidgets. When I removed my local libraries with
