Language Reference

Classes

Model objects with classes, methods, and inheritance using plain statements.

Next: async Strings

Class essentials

Create classes with create a class named.
Add methods with create a method named.
Extend with extends.

Define classes

Declare classes and add methods inside the class block.

classes.pln

create a class named Person
    create a method named greet in class Person that takes nothing and returns "Hello"

create a class named Student that extends Person
    create a method named study in class Student that takes nothing and returns "Studying"

Working with instances

Once the class is defined, use normal Python-style calls for instantiation.

instances.pln

set student to Student()
print student.greet()
print student.study()

Class tips

Use classes to bundle data with behavior.
Keep class names capitalized.
Prefer composition for large systems.