True or False: In Python, sets can contain identical items.

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Question: True or False: In Python, sets can contain identical items.

Option 1: True. The claim that a set can contain identical items is incorrect. Sets are defined as collections of distinct elements, meaning duplicates are automatically eliminated. If you try to add a value that already exists in the set, the set remains unchanged because each element must be unique within a set.

Option 2: False. This statement aligns with the fundamental property of Python sets: they store unique elements only. When constructing or mutating a set, any attempt to include a duplicate is ignored, ensuring no two equal items coexist.

Additional notes: The behavior is analogous to the mathematical concept of a set, where the presence of duplicates has no effect on membership; a value either belongs to the set or it does not, but it cannot appear more than once. If your goal is to track multiple occurrences of identical items, other data structures like lists or collections.Counter would be more appropriate, since they allow duplicates.

Combined CS-126 sections - (1257-4967) COMPUTER SCIENCE I (Fall 2025 M16) 002 Unit 08 - Task | Retention Quiz

True or False: In Python, sets can contain identical items.

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True or False: In Python, sets can contain identical items.

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