FAQ: Working with Lists in Python - Sorting Lists I

This community-built FAQ covers the “Sorting Lists I” exercise from the lesson “Working with Lists in Python”.

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This exercise can be found in the following Codecademy content:

Computer Science
Data Science

FAQs on the exercise Sorting Lists I

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1 Like

2 posts were split to a new topic: Why does this code print none?

6 posts were merged into an existing topic: Why does this code print none?

6 posts were split to a new topic: What is the method of order for sorting the addresses?

5 posts were split to a new topic: How can I sort a zipped object?

How do I save the previous order of the list? I tried it with another variable, that one was sorted too though.
### Exercise 4 ###
cities = ['London', 'Paris', 'Rome', 'Los Angeles', 'New York']
unsorted_cities=cities
print(unsorted_cities)
cities.sort() #This returns nothing.
sorted_cities = cities
print(sorted_cities)
print(unsorted_cities) #huh.. this is sorted too.

is it because it is like in C, just a pointer that points to the same address?

Yes, both variable point to the same list in memory.

also, .sort() orders the list in place/memory.