What is the difference between a set and a frozenset in Python?

What is the difference between a set and a frozenset in Python?

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A set is a mutable collection of unique elements, meaning it can be modified after creation. It is defined using curly braces ({}) or the set() function.

A frozenset is an immutable version of a set, meaning it cannot be modified after creation. It is defined using the frozenset() function and is often used as a dictionary key or in other immutable contexts.

In full-stack development, sets are used for dynamic collections, while frozensets are used for fixed collections. For example, a frozenset might represent a set of allowed values for a configuration setting.