Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Python Python Collections (Retired) Lists Redux Manipulating Lists

sidni ahmed
sidni ahmed
3,329 Points

move the 1 to position 0

the_list = ["a", 2, 3, 1, False, [1, 2, 3]]

which medthod do i use?

1 Answer

Jason Anders
Jason Anders
Treehouse Moderator 145,631 Points

Hi sidni,

You will need to use insert() with the pop() inside of the insert function. Remember, when you pop something out of a list, it will remove it, but it also returns the value.

the_list.insert(0, the_list.pop(3))

So, here we are calling the insert function on the_list. Inside the parenthesis, we tell the function that we want to insert at index zero the following item (note the comma). Here you call the pop function on the_list at index 3 which will remove and return 1, which will then be inserted into the zero index.

I hope this helps and makes sense. Keep Coding! :)