In what situation should the built-in 'operator' module be used in python?

Question

I\'m speaking of this module: http://docs.python.org/library/operator.html

From the article:

The operator module exports a set of functions

Answer 1

I cannot remember the exact use case but I had a requirement somewhere that needed to do some calculation dynamically and this could be using a different operator depending on where it came from.

A very simple example is this:

import operator

def add_or_subtract(x, y, op):
    return op(x, y)

x = 3
y = 10
o = operator.add #operator.sub

add_or_subtract(x, y, o)