How to avoid exit code -1073741819 (0xC0000005) error?

Question

PyQt

how to fix this error? It's definitely in the code, on Ubuntu it also gives an error, something related to memory and recursion.

The code itself:

import sys
from PyQt5.QtCore import QEventLoop,QUrl
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWebEngineWidgets import QWebEngineView
from bs4 import BeautifulSoup


class Render(QWebEngineView):
    def __init__(self, url):
        self.html = None
        self.app = QApplication(sys.argv)
        QWebEngineView.__init__(self)
        self.loadFinished.connect(self._loadFinished)
        self.load(QUrl(url))
        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, result):
        self.page().toHtml(self._callable)


if __name__ == '__main__':
    print("Collecting data...")

    for p in range(3):

        html = Render(f'https://hh.ru/search/vacancy?area=&fromSearchLine=true&st=searchVacancy&text=&page={p}').html
        # get data from page
        bs4 = BeautifulSoup(html, "lxml")
        for elem in bs4.find_all("div", "vacancy-serp-item"):
            print(elem.find('a', 'bloko-link').text)

The error pops up after trying to parse data from page 2, parsing the 1st

Answer 1

PyQt does not expect you to create a QApplication multiple times. Because of this, apparently, an error occurs with memory, since somewhere there may be an access to an invalid pointer.
It seems to me that Selenium is better for your purposes than PyQt.

import sys
from PyQt5.QtCore import QEventLoop, QUrl
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWebEngineWidgets import QWebEngineView
from bs4 import BeautifulSoup


class Render(QWebEngineView):
    def __init__(self):
        self.html = None
        self.app = QApplication(sys.argv)
        QWebEngineView.__init__(self)
        self.loadFinished.connect(self._loadFinished)

    def _callable(self, data):
        self.html = data

    def _loadFinished(self, result):
        self.page().toHtml(self._callable)

    def get_data(self, url):
        self.html = None
        self.load(QUrl(url))
        while self.html is None:
            self.app.processEvents(QEventLoop.ExcludeUserInputEvents |
                                   QEventLoop.ExcludeSocketNotifiers |
                                   QEventLoop.WaitForMoreEvents)
        return self.html


if __name__ == '__main__':
    print("Collecting data...")
    render = Render()

    for p in range(3):
        html = render.get_data(f'https://hh.ru/search/vacancy?area=&fromSearchLine=true&st=searchVacancy&text=&page={p}')
        # get data from page
        bs4 = BeautifulSoup(html, "lxml")
        for elem in bs4.find_all("div", "vacancy-serp-item"):
            print(elem.find('a', 'bloko-link').text)