Dataclasses

Main idea

Dataclass auto-generates boilerplate for data containers.

Tip

Great for structured plain data.

Watch out

Using dataclass for behavior-heavy class.

Read this next

You will study Dataclasses. It belongs to the Object-Oriented Programming phase.

Remember this:
Dataclass auto-generates boilerplate for data containers.

Practice step by step. Do not rush. Each run should show you something new.

Tip:
Great for structured plain data.

Avoid this:
Using dataclass for behavior-heavy class.

Your challenge:
Inventory item dataclass with quantity and price.

Go to the challenge lab below. Fix errors until the output looks right. Then press the green button to complete the topic.

Example code

Copy this example if it helps. Change it so it matches Dataclasses.

# Topic: Dataclasses
def main():
    sample = "edit me"
    # TODO: apply Dataclasses concept here
    result = sample
    print("Result:", result)

if __name__ == "__main__":
    main()

Challenge

Inventory item dataclass with quantity and price.

Before you can finish: your output should include at least 16 characters; at least 1 non-empty line(s); no crash traceback—fix errors until the program runs cleanly.

Use Run. Read the output. Change your code until the task is done.

Starter reference

# Challenge starter for Dataclasses
def solve():
    # Write your solution here
    pass

print("Update solve() and run")

Your code

The first Run may load Python in your browser (one-time). Later runs are faster.

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