Learn Programming in Python with Cody Jackson

Set methods

Operations that are specific to sets and frozensets generally provide a way to quickly compare and shift out common/uncommon items between the different sets. Examples of the following methods can be seen in the next screenshot. The following non-exhaustive listing of set methods is an example of the more common set methods.

However, be sure to review the official Python documentation as there are some differences between set and frozenset methods:

• set1.isdisjoint(set2): Returns True if set1 has no elements in common with set2
• set1.issubset(set2): Returns True if every element in set1 exists in set2
• set1 < set2: Returns True if set1 is a true subset of set2 but not exactly equal to set2
• set1.issuperset(set2): Returns True if ...