[PySide] Why doesn't this example work?
Eric Thomson
thomson.eric at gmail.com
Thu Oct 23 05:52:26 CEST 2014
I meant to write that I put
myWindow.repaint()
before time.sleep(3).
Incidentally, what book are you working through?
On 10/22/14, Eric Thomson <thomson.eric at gmail.com> wrote:
> 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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>
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