Lists and Tuples in Python

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What is a list in Python?

Back

A list in Python is a mutable, ordered collection of items that can contain elements of different data types, defined using square brackets, e.g., list = [1, 'apple', 3.14].

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What is a tuple in Python?

Back

A tuple in Python is an immutable, ordered collection of items that can contain elements of different data types, defined using parentheses, e.g., tuple = (1, 'apple', 3.14).

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How do you access the first item in a Python list?

Back

You access the first item in a Python list using the index 0, e.g., list[0].

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What happens if you try to access an index that is out of range in a list?

Back

If you try to access an index that is out of range in a list, Python raises an IndexError.

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Can you have an empty list in Python?

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Yes, you can have an empty list in Python, defined as list = [].

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Can you have an empty tuple in Python?

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Yes, you can have an empty tuple in Python, defined as tuple = ().

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What is the difference between a list and a tuple in Python?

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

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How do you create a list in Python?

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You create a list in Python by enclosing elements in square brackets, e.g., list = [1, 2, 3].

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How do you create a tuple in Python?

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You create a tuple in Python by enclosing elements in parentheses, e.g., tuple = (1, 2, 3).

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What is the output of list1[-1] if list1 = [2, 33, 222, 14, 25]?

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The output is 25, as -1 refers to the last item in the list.