Disable copy/paste/cut in textboxes

URL of experiment: analogy [PsychoPy]

Description of the problem: Hi all - I am planning on using Psychopy/Pavlovia to collect text responses on a kind of semantic fluency task. I am hoping to disable copy/cut/paste from/to my textboxes as is possible in Qualtrics, and I was wondering if anyone might have an idea of how to do this?