Can anyone explain why the output is like this? And what does "[...]" mean?

Question

a=[1, 2]
a.append(a)
print (a[2][2][2])
>>>
[1, 2, [...]]

Answer 1

This may help
https://stackoverflow.com/questions/772124/what-does-the-JUMP_LINK__&&__python__&&__JUMP_LINK-ellipsis-object-do