[PySide] Why doesn't this example work?

[Eric Thomson]

Try putting
         myWindow.repaint()
before myWindow.show().

That took away the weird behavior on my end. I cannot explain it, though.

On 10/22/14, Jim Byrnes <jf_byrnes at comcast.net> wrote:
> In looking at the lists archives, I see that most of the participants
> seem to be experienced developers.  As a novice programmer I hope I am
> not intruding by asking some basic questions.
>
> I am working my way through examples in a PySide book I bought.
> According to the author the example should display a 200 x 150 window,
> pause 3 seconds and then display a 300 x 300 window.  On my system
> (Ubuntu 12.04) there is a approx 3 second delay after starting the
> program and then I see the 300 x 300 window. I never see the first window.
>
> Could someone explain to me why it does not act as described?
>
> # Import required modules
> import sys
> import time
> from PySide.QtGui import QApplication, QWidget
>
> class SampleWindow(QWidget):
>      """ Our main window class
>      """
>
>      # Constructor function
>      def __init__(self):
>          QWidget.__init__(self)
>          self.setWindowTitle("Sample Window")
>          self.setGeometry(300, 300, 200, 150)
>          self.setMinimumHeight(100)
>          self.setMinimumWidth(250)
>          self.setMaximumHeight(200)
>          self.setMaximumWidth(800)
>
> if __name__ == '__main__':
>      # Exception Handling
>      try:
>          myApp = QApplication(sys.argv)
>          myWindow = SampleWindow()
>          myWindow.show()
>          time.sleep(3)
>          myWindow.resize(300, 300)
>          myWindow.setWindowTitle("Sample Window Resized")
>          myWindow.repaint()
>          myApp.exec_()
>          sys.exit(0)
>      except NameError:
>          print("Name Error:", sys.exc_info()[1])
>      except SystemExit:
>          print("Closing Window...")
>      except Exception:
>          print (sys.exc_info()[1])
>
> Thanks,  Jim
>
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