PyQt5 webkit browser


QWebview inside a browser
PyQt5 Webkit (QWebview) inside a browser
PyQt5 comes with a webkit webbrowser. Webkit is an open source web browser rendering engine that is used by Apple Safari and others. It was used in the older versions of Google Chrome, they have switched to the Blink rendering engine.

Related course:
Create Simple GUI Applications with Python and Qt

QWebView
The widget is called QWebView and webpages (HTML content) can be shown through this widget, local or live from the internet.

Download Example Code

Methods
The QWebView class comes with a lot of methods including:

  • back (self)
  • forward (self)
  • load (self, QUrl url)
  • reload (self)

More documentation on this class can be found on ics.uci.edu

#!/usr/bin/python
 
import PyQt5
from PyQt5.QtCore import QUrl 
from PyQt5.QtWidgets import QApplication, QWidget 
from PyQt5.QtWebKitWidgets import QWebView , QWebPage
from PyQt5.QtWebKit import QWebSettings
from PyQt5.QtNetwork import *
import sys
from optparse import OptionParser
 
 
class MyBrowser(QWebPage):
    ''' Settings for the browser.'''
 
    def userAgentForUrl(self, url):
        ''' Returns a User Agent that will be seen by the website. '''
        return "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36"
 
class Browser(QWebView):
    def __init__(self):
        # QWebView
        self.view = QWebView.__init__(self)
        #self.view.setPage(MyBrowser())
        self.setWindowTitle('Loading...')
        self.titleChanged.connect(self.adjustTitle)
        #super(Browser).connect(self.ui.webView,QtCore.SIGNAL("titleChanged (const QString&)"), self.adjustTitle)
 
    def load(self,url):  
        self.setUrl(QUrl(url)) 
 
    def adjustTitle(self):
        self.setWindowTitle(self.title())
 
    def disableJS(self):
        settings = QWebSettings.globalSettings()
        settings.setAttribute(QWebSettings.JavascriptEnabled, False)
 
 
 
app = QApplication(sys.argv) 
view = Browser()
view.showMaximized()
view.load("https://pythonspot.com")
app.exec_()

2 thoughts on “PyQt5 webkit browser

  1. Osvaldo Cordova A - June 6, 2017

    Which version of PyQt5 are you using?
    It doesn’t work with PyQt5 5.7.1 an newer versions

    1. Frank - June 9, 2017

      Just tested with Python 3.6.1 and PyQt5 5.8.2-2 on Manjaro Linux, it runs fine.
      PyQt5 has the option to include WebKit, this needs to be done at compilation step of the framework. Sometimes versions of PyQt5 are distributed that don’t include WebKit. You could recompile PyQt5 to include WebKit or use a redistributable on another OS like Manjaro.