First-Class Functions

Function: A first-class object

A first-class object is an object that can be:

• Created at runtime (assigned to a variable)
• Stored in a data structure
• Passed as an argument to another function
• Returned as a value from another function

Several data types in Python are first-class objects, e.g. int, string, etc. But that’s not it. Functions in Python are also first-class objects. Without any further ado, let us run a program demonstrating the nature of functions as first-class objects.