Passing string to QThread (QProcess?) and out

This code is just an example using Google site, but I want it work for any JavaScript-enabled sites. So, I have: QPushButton object which is connected to getAnswer function which take text entered to QLineEdit object and (should) pass it to QThread, where this text should be used in search(text) function. Afterwards resulting text should appear in QLabel object. The question is: how do I pass this string to QThread and resulting string out? The code below is expectedly crashed on

Code:

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self.get_thread = getGoogle(self.text)

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which is wrong.

Code:

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#!/usr/bin/python3
# -*- coding: utf-8 -*-
 
import sys
from bs4 import BeautifulSoup
from PyQt5.QtWidgets import QApplication, QWidget, \
    QLabel, QLineEdit, QGridLayout, QPushButton
from PyQt5.QtCore import pyqtSignal, QEventLoop, QThread
from PyQt5.QtWebEngineWidgets import QWebEngineView
from requests import get
 
 
class getGoogle(QThread):
    def __init__(self):
        QThread.__init__(self)
        self.text=text
 
    def __del__(self):
        self.wait()
 
    def render(source_html):
        class Render(QWebEngineView):
            def __init__(self, html):
                self.html = None
                self.app = QApplication([])
                QWebEngineView.__init__(self)
                self.loadFinished.connect(self._loadFinished)
                self.setHtml(html)
                while self.html is None:
                    self.app.processEvents(QEventLoop.ExcludeUserInputEvents | QEventLoop.ExcludeSocketNotifiers | QEventLoop.WaitForMoreEvents)
                self.app.quit()
 
            def _callable(self, data):
                self.html = data
 
            def _loadFinished(self):
                self.page().toHtml(self._callable)
 
        return Render(source_html).html
 
    def search(self, text):
        query=str(text)
        query = query.replace(" ", "+")
        url='https://www.google.com/search?q=' + query
        headers = {'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36'}
        sample_html = get(url, headers=headers).text
        soup = BeautifulSoup(self.render(sample_html), "html.parser")
        res = soup.find('span', attrs={'class': 'cwcot'})
        res = res.get_text()
        return res
 
    def run(self):
        result=self.search(text)
        self.emit(pyqtSignal('add_answer(QString)'), result)
        self.sleep(2)
 
 
class MyApp(QWidget):
    def __init__(self):
        super().__init__()
        self.initUI()
 
    def initUI(self):
        self.sendButton = QPushButton('Ask', self)
        self.questionEdit = QLineEdit(self)
        self.answer=QLabel(self)
        grid = QGridLayout(self)
        grid.setSpacing(10)
        grid.addWidget(self.questionEdit, 1, 0)
        grid.addWidget(self.sendButton, 1, 1)
        grid.addWidget(self.answer, 2,0)
        self.sendButton.clicked.connect(self.getAnswer)
        self.setLayout(grid)
        self.resize(500, 100)
        self.show()
 
    def getAnswer(self):
        text = self.questionEdit.text()
        if len(text)>=1:
            self.get_thread = getGoogle(self.text)
            self.connect(self.get_thread, pyqtSignal("add_answer(QString)"), self.answer.setText)
            self.get_thread.start()
        else:
            self.answer.setText("Specify your question")
 
if __name__ == '__main__':
    app = QApplication(sys.argv)
    my = MyApp()
    sys.exit(app.exec_())

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I was told, that two QApplication can not be run simultaneously. Then what the better solution: QThread, QProcess (again, how to transfer string values between the processes)? Maybe there are other options to render resulting html-code, without QWebEngineView? Any suggestions would help. Thanks.