Custom Webpage Desktop using Python + Gtk3

desktop.py

import gi
gi.require_version('WebKit', '3.0') 

from gi.repository import WebKit, Gtk, Gdk
import os, urllib

class App:
    def __init__(self):
        win = Gtk.Window()
        screen = win.get_screen()
        rgba = screen.get_rgba_visual()
        win.set_visual(rgba)
        win.override_background_color(Gtk.StateFlags.NORMAL, Gdk.RGBA(0,0,0,0))
        win.connect('delete-event', Gtk.main_quit)
        
        win.set_type_hint(Gdk.WindowTypeHint.DESKTOP)
        win.set_title("MyAwesomeDesktop")
        win.set_skip_taskbar_hint(True)
        win.set_decorated(False)
        win.set_keep_below(True)
        win.stick()
        
        view = self.createWebApp()
        win.add(view)
        win.move(0,0)
        win.resize(1366, 768)
        win.show_all()
    
    def createWebApp(self):
        view = WebKit.WebView()
        view.set_transparent(True)
        settings = view.get_settings()
        #settings.set_property('enable-file-access-from-file-uris', 1)
        view.override_background_color(Gtk.StateFlags.NORMAL, Gdk.RGBA(0,0,0,0))
        htmlStr = "http://www.google.com"
        htmlURL = urllib.urlopen(htmlStr)
        #print os.path.abspath(htmlStr)
        #htmlPath = "file://" + os.path.abspath(htmlStr)
        #view.load_html_string(htmlURL.read(), htmlPath)
        view.load_html_string(htmlURL.read(), htmlStr)
        return view
        
if __name__ == "__main__":
    App()
    Gtk.main()

Use the commented-out lines if you are working with a local .html file.