Properties that validate and compute in Python
Python interview exercise on Classes & Dataclasses, difficulty 2 of 3. Solve it in the editor beside a worked example, or cold in Interview mode with the example hidden; the tests run the moment you do.
Write Temperature(celsius). Setting celsius below -273.15 raises ValueError, in the constructor too. fahrenheit is a second property computed from celsius (c × 9 / 5 + 32), and setting it updates celsius, going through the same validation.
Each exercise pairs a worked example with a twin problem to solve in a real editor; the tests run the moment you do. Interview mode hides the example: solve it from memory, without the hint or the solution, and it counts as solved cold. Progress is saved in your browser, and in your account if you sign in.