Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Python Collections (2016, retired 2019) Lists Creating lists

Posted by Yemurai Ngoma
Yemurai Ngoma
4,217 Points

strings

where am I getting lost here??

lists.py 
my_list = [
    [1, 4],
    [3, 9 ],
]
print(my_list)
my_list + ([[2, 8]])
print(my_list + ([[2, 8]]))

1 Answer

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

When you first create the list, you put two other lists (each with 2 numbers) into it. But the instructions say you should "Put 3 numbers and 2 strings into it".

The "+" operator doesn't alter the original list.

And you don't need to "print" anything.