I realize this is a bit of a vague question, but I'm not sure how to make it more specific.
The skeleton for my code is below:
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
class FormWidget(QWidget):
def __init__(self, parent):
super(FormWidget, self).__init__(parent)
class MainWindow(QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
form = FormWidget(self)
self.setCentralWidget(form)
[do a bunch of stuff with form]
if __name__ == '__main__':
app = QApplication(sys.argv)
mainWindow = MainWindow()
mainWindow.show()
sys.exit(app.exec_())
Within the FormWidget class, there is a keyPressEvent() method that traps keyboard input, and on a specific key ('q'), calls this:
mainWindow.close()
Most of the time, that causes the app to exit, as desired. But occasionally (with no predictable pattern that I can discern), it causes a crash (dialog comes up that says 'python.exe has stopped working', with a 'Close program' button).
First question, I guess, is: Is this not the proper way to terminate a PyQt GUI app?
If it is, then second question is: Presumably, my code is misbehaving somewhere. But I'm not sure what sort of misbehavior to be looking for. What sort of mistake could I be making that would cause this?
Any thoughts appreciated.
/John
