I stumbled across the pywebview project a couple of weeks ago. The pywebview package “is a lightweight cross-platform wrapper around a webview component that allows the display of HTML content in its own native GUI window.” It uses WebKit on OSX and Linux and Trident (MSHTML) on Windows, which is actually what wxPython’s webview widget also does. The idea behind pywebview is that it provides you with the ability to load a website in a desktop application, kind of like Electron.
While pywebview claims it “has no dependencies on an external GUI framework,” on Windows it requires pythonnet, PyWin32 and comtypes to be installed. OSX requires “pyobjc,” although that is included with the default Python installed in OSX. For Linux, it’s a bit more complicated. On GTK3 based systems you will need PyGObject whereas, on Debian based systems, you’ll need to install PyGObject + gir1.2-webkit-3.0. Finally, you can also use PyQt 4 or 5.