Using the Toolbox class

The second mechanism offered by the DEAP framework is the base.Toolbox class. The Toolbox is used as a container for functions (or operators), and enables us to create new operators by aliasing and customizing existing functions.

For example, suppose we have a function, sumOfTwo(), defined as follows:

def sumOfTwo(a, b):
    return a + b

Using toolbox, we can now create a new operator, incrementByFive(), which customizes the sumOfTwo() function as follows:

from deap import base
toolbox= base.Toolbox()
toolbox.register("incrementByFive", sumOfTwo, b=5)