What is the difference between a set and a list in Python?
An example of an AI chatbot conversation about the differences between sets and lists in Python.
What is the difference between a set and a list in Python?
In Python, a list is an ordered collection that allows duplicate elements, while a set is an unordered collection that does not allow duplicates.
Can you give me an example of when to use a set instead of a list?
Sure! Use a set when you need to store unique items, like a collection of unique user IDs, where duplicates are not needed.
What are the performance differences between sets and lists?
Sets generally have faster membership tests (O(1) on average) compared to lists (O(n)), making them more efficient for checking existence.
Are there any methods that are unique to sets?
Yes, sets have unique methods like union(), intersection(), and difference(), which are not available for lists.
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