Hey where can I find arrays lesson for python??

Answer 1

since the re-design of the app, lessons are at a new place. go to the learn section, select python as language, then scroll down to the very end. there you will find an area named 'more on this topic. here you can find information about lists, numpy and so on.

Answer 2

No arrays in python, there are:
lists, tuples and sets
yes, if you import numpy, in that library arrays are exist