Example Python3 + QT5 + Web

teste.py

#!/usr/bin/python3
# -*- coding: utf-8 -*-

import os
import sys
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWebKitWidgets import QWebView
from PyQt5.QtGui import QIcon
from PyQt5.QtCore import QUrl
from PyQt5.QtCore import QSize

if __name__ == "__main__":

    # Create application
    app = QApplication([])
	
    # Create View
    web = QWebView()

    # Set Title
    web.setWindowTitle("My Application")

    # Set icon
    icon = QIcon()
    icon.addFile(":/my-icon.png", QSize(32,32))
    web.setWindowIcon(icon)

    # Define geometry
    width, height = 800, 600
    web.resize(width, height)
    
    # Define Position
    x = y = None
    if(x is None or y is None):
        web.move(app.desktop().screen().rect().center() - web.rect().center()) # center
    else:
        web.move(int(x), int(y))
	
    # Show Debug
    debug = False 
    if debug:
        # Enable extra tools for developers
        from PyQt5.QtWebKit import QWebSettings
        web.page().settings().setAttribute(QWebSettings.DeveloperExtrasEnabled, True)


    # Html
    html = QUrl("file://" + os.getcwd() + "/index.html")
    web.load(html)
    
    # Load Pyjs File from 
    from directory.filename import PyFileClass
    PyFileClass = PyFileClass()
    web.page().mainFrame().addToJavaScriptWindowObject("PyFileClass", PyFileclass)

    # Show webview
    web.show()

    # Quit application
    sys.exit(app.exec_())