PyQt: How to hide QMainWindow
Make the first window a parent of the second window: class Dialog_02(QtGui.QMainWindow): def __init__(self, parent): super(Dialog_02, self).__init__(parent) # ensure this window gets garbage-collected when closed self.setAttribute(QtCore.Qt.WA_DeleteOnClose) … def closeAndReturn(self): self.close() self.parent().show() class Dialog_01(QtGui.QMainWindow): … def callAnotherQMainWindow(self): self.hide() self.dialog_02 = Dialog_02(self) self.dialog_02.show() If you want the same dialog to be shown each time, do something like: … Read more