What are nested lists in Python's collections module?
Nested lists are lists that contain other lists as their elements. They allow for multi-dimensional data storage.
Can you give me an example of how to create a nested list?
Sure! You can create a nested list like this: nested_list = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
.
How do I access elements in a nested list?
You can access elements using multiple indices. For example, nested_list[0][1]
will give you 2
.
What are some common use cases for nested lists?
Common use cases include representing matrices, grids, or any data structure that requires a two-dimensional layout.
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