FAQ: Collections - UserList

This community-built FAQ covers the “UserList” exercise from the lesson “Collections”.

Paths and Courses
This exercise can be found in the following Codecademy content:

Learn Intermediate Python 3

FAQs on the exercise UserList

There are currently no frequently asked questions associated with this exercise – that’s where you come in! You can contribute to this section by offering your own questions, answers, or clarifications on this exercise. Ask or answer a question by clicking reply (reply) below.

If you’ve had an “aha” moment about the concepts, formatting, syntax, or anything else with this exercise, consider sharing those insights! Teaching others and answering their questions is one of the best ways to learn and stay sharp.

Join the Discussion. Help a fellow learner on their journey.

Ask or answer a question about this exercise by clicking reply (reply) below!
You can also find further discussion and get answers to your questions over in Language Help.

Agree with a comment or answer? Like (like) to up-vote the contribution!

Need broader help or resources? Head to Language Help and Tips and Resources. If you are wanting feedback or inspiration for a project, check out Projects.

Looking for motivation to keep learning? Join our wider discussions in Community

Learn more about how to use this guide.

Found a bug? Report it online, or post in Bug Reporting

Have a question about your account or billing? Reach out to our customer support team!

None of the above? Find out where to ask other questions here!

Don’t we need to call super here? In the theory when we overwrite clear() we used super() Please explain!

from collections import UserList

data = [4, 6, 8, 9, 5, 7, 3, 1, 0]

class ListSorter(UserList):

def append(self, item):

self.data.append(item)
self.data.sort()

sorted_list = ListSorter(data)
sorted_list.append(2)
print(sorted_list)

3 Likes

As the instructions mention self.data allows you to access the underlying list, this is itself a list object so you can directly use list methods on it. You can solve the previous task without super too.

So you don’t need to use super here, for example, you could do super().append(item) or self.data.append(item) for similar behaviour in this situation.

1 Like