How can you create an empty set in Python?

Creating an empty set in Python is done using the set() function. This is the standard way to instantiate a new set object with no elements. The parentheses indicate that you are calling the set constructor without any arguments, resulting in an empty set.

The other choices represent different types of data structures. For example, using square brackets [] creates an empty list, while curly braces {} actually create an empty dictionary, not a set. The notation with parentheses () is used for creating a tuple, which is also a distinct data structure. Therefore, only set() correctly initializes an empty set in Python, making it the right choice for this question.