CEF Python is an open source project founded by Czarek Tomczak in 2012 to provide python bindings for the Chromium Embedded Framework. Examples of embedding CEF browser are available for many popular GUI toolkits including: wxPython, PyQt, PySide, Kivy, Panda3D, PyGTK, PyGObject, PyGame/PyOpenGL and PyWin32.
There are many use cases for CEF. You can embed a web browser control based on Chromium with great HTML 5 support. You can use it to create a HTML 5 based GUI in an application, this can act as a replacement for standard GUI toolkits like wxWidgets, Qt or GTK. You can render web content off-screen in application that use custom drawing frameworks. You can use it for automated testing of existing applications. You can use it for web scraping or as a web crawler, or other kind of internet bots.