AttributeError: 'list' object has no attribute 'contains'

[meuwl]

I know, that this error was discussed and closed already, but I can't solve it anyway. (@peircej)

This error message came up during the workshop when a participant running PsychoPy 2021.1 tried to create a clickable button without using the button component (the old `method). (@mdcutone)

That's my error message:

`Traceback (most recent call last):
File "C:\Users\Admin\Desktop\posner\test_lastrun.py", line 157, in
if obj.contains(mouse):
AttributeError: 'list' object has no attribute 'contains'

Experiment ended. #####`

In my case there is only one picture ("image") and one click ("mouse"), but the code still crushes right after first click at any part of screen. I can't code at all and I dont know english good enough to search through pythons' forums so I'm asking for help. If it's possible, describe anything in easy words.

Thanks a lot.

[meuwl]

BF: Mouse clickables no longer need encasing in [] #3656
Thank a lot, it works!