How do I concatenate sets in Python in pure Python?

In Python, sets can be combined using various methods. Although sets themselves do not support direct concatenation like lists or strings, you can achieve similar results by using methods like `union()`, the `|` operator, or by using the `update()` method. Each of these methods creates a new set or modifies an existing one to include the elements of another set.

# Example of concatenating sets in Python set1 = {1, 2, 3} set2 = {3, 4, 5} # Using union() method concatenated_set = set1.union(set2) print(concatenated_set) # Output: {1, 2, 3, 4, 5} # Using the | operator concatenated_set2 = set1 | set2 print(concatenated_set2) # Output: {1, 2, 3, 4, 5} # Using update() method set1.update(set2) print(set1) # Output: {1, 2, 3, 4, 5}

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