[Python] How to limit matplotlib button_press_event to a single axis?

This script:

import matplotlib.pyplot as plt
from matplotlib.widgets import Button

def fAccept(_):
print(f'accepted')

def onclick(event):
print(f'click {event.xdata, event.ydata}')

fig, ax = plt.subplots()
fig.subplots_adjust(bottom=0.2)
fig.canvas.mpl_connect('button_press_event', onclick)
axAccept = fig.add_axes([0.7, 0.05, 0.1, 0.075])
bAccept = Button(axAccept, 'Accept')
bAccept.on_clicked(fAccept)
plt.show()


displays



Clicking on bAccept button calls onclick callback. Is there a way to limit onclick callback to the top axis? Alternatively, is there a way to distinguish event coordinates (0.5, 0.5) from the center of bAccept button (green circle) from (0.5, 0.5) coordinates from the center of the upper axis (red circle)?

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