Python: First Class

When I learned python decorators I found a very interesting concept: First Class Object. A
function in python is said to be a first class object.

So what is First Class Object? Indeed, it is an entity that can be dynamically created, destroyed,
passed to a function, returned as a value, and have all the rights as other objects.

Depending on the language, the first class object can be:

• expressible as an anonymous literal value
• storable in variables
• storable in data structures
• have an intrinsic identity (independent of any given name)
• comparable for equality with other entities
• passable as a parameter to a procedure/function
• returnable as the result of a procedure/function
• constructible at runtime
• printable
• readable
• transmissible among distributed processes
• storable outside running processes

Wiki:First class function