PYTHON PROBLEM 168 · Intermediate

Use a dataclass for inventory: Zero quantity

A valid item with no units has zero inventory value.

dataclass · propertydataclassproperty

PROBLEM OVERVIEW

What this Python exercise asks you to practise

This scenario tests use a dataclass for inventory. It belongs to the Classes and Object-Oriented Python roadmap and uses the dataclass · property pattern.

Objects, attributes, methods, constructors, composition, and basic inheritance.

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SKILL TO CARRY FORWARD

Pattern relevance

This exercise strengthens dataclass · property. Be ready to explain the input, the rule, the boundary cases, and why the chosen approach is appropriate.