Basic usage
Input
p = Person(25) p.age
Output
25
Constructor stores the age via the property. Getter returns the integer age.
Full lesson preview
Add a Property Getter and Setter for Validation
Create a Person class with an age property that validates and normalizes assignments.
Python practice8 minMethods & PropertiesBeginnerLast updated April 7, 2026
Problem statement
Implement a Person class that stores an age as a private attribute and exposes it via an age property. The age setter should validate and normalize incoming values:
- Convert numeric values to integers (e.g., 29.9 -> 29).
- Clamp values below 0 to 0 and values above 150 to 150.
- The getter should return the normalized integer age.
Provide a constructor that accepts an initial age and stores it using the property so validation runs on construction.
Task
Learn to implement a Python property with a getter and setter that enforces validation rules (clamping and type normalization).
Examples
Input format
A Python expression creating or modifying a Person instance, evaluated and its return value compared to the expected output.
Output format
The string representation of the returned value is compared to the expected output.
Constraints
- Age values are numeric (int or float).
- Ages are clamped to the inclusive range [0, 150].
- No external libraries.
- Use Python's @property decorator for getter and setter.
Samples
Sample 1
Input
p = Person(29.9) p.age
Output
29
Float is converted to int (truncated) and returned.