Object Conversion Between Python and Scala

Objects representation in object-oriented language

In object-oriented programming, custom objects are usually defined using class hierarchy—class, subclass, superclass, and so on. Although composite datatypes such as list, array, dictionary or map are available, it’s impossible to attach methods to them. To write better modular code, the primitive and composite datatypes are often wrapped into class and methods defined in the classes are used to manipulate the data stored in the class. For example, we can represent a Review class as follows: