What are some examples of using frozensets in Python?

Can you give me some examples of using frozensets in Python?

Sure! A frozenset is an immutable version of a set in Python. Here's a simple example:

my_frozenset = frozenset([1, 2, 3, 4])
print(my_frozenset)

This will output: frozenset({1, 2, 3, 4}).

What are the benefits of using frozensets?

Frozensets are hashable, which means they can be used as keys in dictionaries or elements in other sets. They also provide a way to create sets that cannot be modified.

Can you show me how to perform set operations with frozensets?

Absolutely! You can perform operations like union, intersection, and difference. For example:

fs1 = frozenset([1, 2, 3])
fs2 = frozenset([3, 4, 5])

# Union
print(fs1 | fs2)  # frozenset({1, 2, 3, 4, 5})

# Intersection
print(fs1 & fs2)  # frozenset({3})

# Difference
print(fs1 - fs2)  # frozenset({1, 2})

Are frozensets faster than regular sets?

Yes, frozensets can be faster for membership tests because they are immutable and hashable, allowing for quicker lookups.