Python Exit Code -1073741819 (0xC0000005) When Using PyQT5

I'm trying to use PyQT5 to generate a scrollable window for my graph that I'm generating however, everytime it's generated, I get the error: -1073741819 (0xC0000005) and it ends my program execution.

The code for the window is:

class ScrollableWindow(QtWidgets.QMainWindow):
def __init__(self, fig):
    self.qapp = QtWidgets.QApplication([])

    QtWidgets.QMainWindow.__init__(self)
    self.widget = QtWidgets.QWidget()
    self.setCentralWidget(self.widget)
    self.widget.setLayout(QtWidgets.QVBoxLayout())
    self.widget.layout().setContentsMargins(0,0,0,0)
    self.widget.layout().setSpacing(0)

    self.fig = fig
    self.canvas = FigureCanvas(self.fig)
    self.canvas.draw()
    self.scroll = QtWidgets.QScrollArea(self.widget)
    self.scroll.setWidget(self.canvas)

    self.nav = NavigationToolbar(self.canvas, self.widget)
    self.widget.layout().addWidget(self.nav)
    self.widget.layout().addWidget(self.scroll)

    self.show()
    exit(self.qapp.exec_())

And I'm calling it as (fund_figs is the graph name):

a = ScrollableWindow(fund_figs)
print(a)

Any help is appreciated.

I'm not great with this side of Python, but here are two things I noticed that may help:

• Make sure to correct your indentation
• Make sure to run import QtWidgets

If you don't want the error to end your program, try doing this:

    class ScrollableWindow(QtWidgets.QMainWindow):
    def __init__(self, fig):
         try:
              #enter code here
         except Exception as e:
              print("Here is the error: {} " .format(e))

I don't know if this helped at all, sorry if it didn't, but I do hope it educated you in some form or another.