9.6.1 Extending Data Structures Flashcard

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What is a list in Python?

Back

A list is a mutable, ordered collection of items that can contain elements of different data types.

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What is a tuple in Python?

Back

A tuple is an immutable, ordered collection of items that can contain elements of different data types.

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What is a dictionary in Python?

Back

A dictionary is an unordered collection of key-value pairs, where each key is unique.

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What is a 2D list in Python?

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A 2D list is a list of lists, allowing for the representation of a matrix or grid.

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How do you concatenate two lists in Python?

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You can concatenate two lists using the '+' operator.

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What does the append() method do in Python?

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The append() method adds a single element to the end of a list.

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What is slicing in Python?

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Slicing is a way to access a subset of elements from a list using a specified range.

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What is the output of my_list[1:3] if my_list = [0, 1, 2, 3, 4]?

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The output will be [1, 2].

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How do you create an empty list in Python?

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You can create an empty list by using empty square brackets: my_list = []

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What is the difference between a list and a tuple?

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The main difference is that lists are mutable (can be changed) while tuples are immutable (cannot be changed).