I want to make a function in PyQt evaluateJavaScript() (or may be similar one) and than display a result of evaluated function. Real function will be much bigger, and it might not be a string.

I'm only interesting in how to create a function inside PyQt code and than get the result into python variable.

To be more clear I will give you an example: that's the js that I want to type in after loadFinished on http://jquery.com:

w = document.getElementsByTagName('p')[0];
w.innerHTML

If I do it in browser console, I' will get an output:

"jQuery is a fast and concise JavaScript Library ...... blah blah blah"

And I want to store this output in a variable.

#!/usr/bin/env pythonfrom PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4.QtWebKit import *
import os, sys, signal
from urllib2 import urlopenclass GBot(QWebView):def __init__(self):QWebView.__init__(self)self.setPage(BrowserSettings())#self.jquery = get_jquery()self.load(QUrl('http://jquery.com'))self.frame = self.page().currentFrame()def _loadFinished(self, ok):doc = self.frame.documentElement()#doc.evaluateJavaScript(self.jquery)r = doc.evaluateJavaScript('''w = document.getElementsByTagName('p')[0]; w.innerHTML''')print r #want to do something like thisif __name__ == '__main__':app = QApplication(sys.argv)bot = GBot()bot.show()if signal.signal(signal.SIGINT, signal.SIG_DFL):sys.exit(app.exec_())app.exec_()

In this example first I create a myWindow javascript object by passing self to the main frame, then call evaluateJavaScript when loadFinished:

#!/usr/bin/env python
#-*- coding:utf-8 -*-from PyQt4 import QtCore, QtGui, QtWebKit  getJsValue = """ 
w = document.getElementsByTagName('p')[0];
myWindow.showMessage(w.innerHTML);
"""  class myWindow(QtWebKit.QWebView):  def __init__(self, parent=None):super(myWindow, self).__init__(parent)self.page().mainFrame().addToJavaScriptWindowObject("myWindow", self)self.loadFinished.connect(self.on_loadFinished)self.load(QtCore.QUrl('http://jquery.com'))@QtCore.pyqtSlot(str)  def showMessage(self, message):print "Message from website:", message@QtCore.pyqtSlot()def on_loadFinished(self):self.page().mainFrame().evaluateJavaScript(getJsValue) if __name__ == "__main__":import sysapp = QtGui.QApplication(sys.argv)app.setApplicationName('myWindow')main = myWindow()main.show()sys.exit(app.exec_())