The Complete Python Course - What Are Sets in Python?

The video tutorial introduces Python sets, explaining their role as part of Python's collection data types alongside lists, tuples, and dictionaries. It covers how to create sets using curly braces, discusses their unordered and unchangeable nature, and explains how to add or remove items. The tutorial emphasizes that duplicate values are not allowed in sets, and only unique values are retained. Built-in methods for set operations are also explored.

What is a set in Python and how can it be created?

• A set is an immutable collection of unordered items, created using curly braces.

• A set is a mutable collection of unordered items, created using curly braces.

• A set is an immutable collection of ordered items, created using parentheses.

• A set is a mutable collection of ordered items, created using square brackets.

Which of the following is NOT a built-in data type in Python used for collections?

• List

• Tuple

• Array

• Dictionary

How are items in a Python set separated?

• By spaces

• By colons

• By commas

• By semicolons

Which of the following statements about Python sets is true?

• Sets allow duplicate values.

• Sets are ordered and changeable.

• Sets are unordered and unchangeable.

• Sets are ordered and immutable.

What happens if you add duplicate values to a Python set?

• All duplicate values are stored.

• An error is raised.

• Only one instance of the value is stored.

• The set becomes ordered.