Partial functions in Python

In this lesson, you will learn about partial functions in python and how to use them in your python program.

Partial Functions in Python

Using Partial functions, you can fix a certain number of arguments of a function and generate a new function. Basically, it’s the derivation of a new function from an existing function using which you can reuse the code extensively. It allows us to derive a function with higher-order parameters to a function with fewer parameters with constant values set. The derived function is similar to any other function in Python. Partial functions in python are created with functools library.

Let’s use the partial functions in a python program.

Sample program using the partial functions in a python program  

Input:

[gamipress_button label=”Try It” onclick=”window.open(‘https://coderseditor.com/?id=1403′,’_blank’)”]

from functools import partial
def partial_functions(i, j, k, l):
    return 1*i + 2*j + 3*k + (4-l)
new = partial(partial_functions, 57, 75,67)
print(new(76))

Output:

336