functions-as-objects

Functions as Objects

In Python, functions are first-class objects — they can be used anywhere any other object can. See First-class function — Wikipedia.

What this means

A function can be:

• Assigned to a variable
• Stored in a list or dictionary
• Used as an attribute of an object
• Passed as an argument to another function
• Returned as the result of a function call

Higher-order functions

A function that takes or returns another function. apply(f, x, y) and compose(f, g) are examples here.

Run

python functions_as_objects.py