Python Set update() Method Syntax

Syntax :  set1.update(set2) 

Here set1 is the set in which set2 will be added.

Parameters : Update() method takes any number of argument. The arguments can be a set, list, tuples or a dictionary. It automatically converts into a set and adds to the set. 

Return value : This method adds set2 to set1 and returns nothing. 

Python update() function in set adds elements from a set (passed as an argument) to the set. If the element is present in both of the sets then the element comes only one time in the updated set.