Python "vs = VideoStream(src=0).start()" has aborted on code

[박인성 (InSung Bahk)]

Hi, I want to run my code by using imutils videostream module.
but i dont know reason it always aborted. plz help me..

Here is code on REPL

>>> 
>>> from imutils.video import VideoStream
>>> from imutils import face_utils
>>> vs = VideoStream(src=0).start()
[1]    32113 abort      python

Python Version : 3.7.3
openCV Version : 4.2.0
macOS Version : 10.15.5
Terminal : zsh

Thank you.