import cv2, PySimpleGUI as sg

window = sg.Window('Demo Application - OpenCV Integration', [[sg.Image(filename='', key='image')], ], location=(800, 400))
cap = cv2.VideoCapture(0)  # Setup the camera as a capture device
while True:  # The PSG "Event Loop"
    event, values = window.read(timeout=20, timeout_key='timeout')  # get events for the window with 20ms max wait
    if event is None:  break  # if user closed window, quit
    window['image'].update(data=cv2.imencode('.png', cap.read()[1])[1].tobytes())  # Update image in window

"""
Putting the comment at the bottom so that you can see that the code is indeed 7 lines long.  And, there is nothing
done out of the ordinary to make it 7 lines long.  There are no ; for example.  OK, so the if statement is on one line
but that's the only place that you would traditionally see one more line.  So, call it 8 if you want.
"""
