PyQt New Window Instance showing and closing immediately

Question

class Window(QtGui.QMainWindow):

    def __init__(self):
        super(Window, self).__init__()

    def new(self):
        newFile = Window()
        newFile.show()

I didn't show the full code becuase it's too long.I have tested that is the window

created or not by using print and the window is actually created but it closes immediately

Answer 1

As it stands, newFile only exists within the scope of the new() function. You need to store the instance that you create or it will get garbage collected.

self.newFile = Window()
self.newFile.show()