Instances of a Class: Objects and Attributes An instance of an object is the realisation of a class, and in figure 2 we see three instances of the class circle. We give each object a name: red circle, ...

(In Python, the term method is not unique to class instances: other object types can have methods as well. For example, list objects have methods called append, insert, remove, sort, and so on.

In Python, everything is a first-class object, including functions, classes, methods, and modules. Existing slicing methods cannot handle the issue of these first-class objects. Therefore, this paper ...