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 (Retired) Lists Redux Manipulating Lists

Python Collections, Manipulating Lists, 3 objectives

Greetings,

i am having some problems here. I have added the lists.py. Exercise asks for the third task to add range 3-20 to the 1, 2, 3 which are already present in the list. I am trying to add the numbers by the following command the_list.extend(range(4,21)), but for some odd reason i get error and the task does not complete. I cant find what i could be doing wrong here. Would appreciate if someone could help me.

Best Regards,

lists.py
the_list = ["a", 2, 3, 1, False, [1, 2, 3]]

# Your code goes below here
list = the_list
the_list.pop(3)
the_list.insert(0, 1)
the_list.remove("a")
the_list.remove(False)
the_list.remove([1, 2, 3])
the_list.extend(range(4, 21))

3 Answers

Andrius Grigaitis
Andrius Grigaitis
2,796 Points

If you take out: list = the_list it should work.

Steven Parker
Steven Parker
231,275 Points

Andrius is right.

Apparently, creating the "list" variable confuses the challenge checker.

Thank you a lot guys, worked nicely!