PsychoPy version 2020.1.3
I’m trying to get 20 randomized images out of a list of 40 to appear in a learning loop, but I get the following error
typeError: int() argument must be a string, a bytes-like object or a number, not ‘NoneType’
I’ve watched a few videos to try and figure it out with no luck, can anyone help suggesting a fix? Thanks!