How do I create sets in Python in a memory-efficient way?

In Python, sets are a built-in data type that allows you to store unique elements. They are particularly useful for removing duplicate values from a list or performing mathematical operations such as unions and intersections. To create sets in a memory-efficient way, you can use the following approaches:

# Using set() to create a set from a list
my_list = [1, 2, 2, 3, 4, 4, 5]
my_set = set(my_list)  # This will create a set with unique elements: {1, 2, 3, 4, 5}

# Creating a set with set comprehensions
my_set_comp = {x for x in range(10) if x % 2 == 0}  # This will create a set of even numbers: {0, 2, 4, 6, 8}