How to “render” HTML with PyQt5's QWebEngineView

Question

How can I \"render\" HTML with with PyQt5 v5.6 QWebEngineView?

I have previously performed the task with PyQt5 v5.4.1 QWebPage, but it was suggested to try the newe

Answer 1

The answer by Six & Veehmot is great, but I found out that for my purpose it was not sufficient, as it did not expand the dropdown elements of the page that I wanted to scrape. A slight modification fixed this:

def render(url):
    """Fully render HTML, JavaScript and all."""

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

    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)

    return Render(url).html


print(render(dummy_url))