Update (repaint) application window (python)

Question

LS, I am developping an app that reads text from a web page. While the text is processed in the app the app window (gui) shows "application is not responding" (translated from a Dutch warning message). However the app is not frozen because I see it prints in the console window. The app gui is designed in Qt designer and converted in python 2.7 code on win7 64 bit. How can I force the app to refresh the window and update ? Thanks

Answer 1

Here are some ways of doing it:

• Call your time consuming function in separate thread or create timer. Basic example with QTimer.singleShot:

  QTimer.singleShot(1, your_time_consuming_function)
  

• Call QCoreApplication.processEvents() in your text processing loop.

If all the time is spent in fetching the page, consider using timer or thread.