Temperature with a Guarded Setter

Medium ⏱ 12 min 64% acceptance ★★★★★ 4.5

Build Thermostat exposing celsius as a property whose setter rejects values below absolute zero (-273.15) with ValueError, and a derived read-only property fahrenheit. Property setters let you keep attribute syntax (t.celsius = 25) while still validating.

Examples

Example 1

Input

t = Thermostat(20); t.celsius = 25; t.fahrenheit

Output

77.0

Explanation

The setter accepted 25; fahrenheit derives from it.

Example 2

Input

t.celsius = -300

Output

ValueError

Explanation

Below absolute zero.

Constraints

celsius has @property and @celsius.setter.
fahrenheit has no setter.

Topics

OOPproperty setter

Companies

HoneywellBoschSiemens

Hints

Hint 1

Store the real value in self._celsius.

Hint 2

F = C × 9/5 + 32.

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