[Introduction to Udemy Python3 + Application] 55. In-function functions

** * This article is from Udemy "[Introduction to Python3 taught by active Silicon Valley engineers + application + American Silicon Valley style code style](https://www.udemy.com/course/python-beginner/" Introduction to Python3 taught by active Silicon Valley engineers + application + American Silicon Valley style code style ")" It is a class notebook for myself after taking the course of. It is open to the public with permission from the instructor Jun Sakai. ** **

■ In-function function

◆ How to use

inner_function


def outer(a, b):

    def plus(c, d):
        return c + d

    r = plus(a, b)
    print(r)
    
outer(1, 2)

result


3

It is also possible to define newer functions within the function. If you don't use the inner function (plus) anywhere other than the outer function (ʻouter`) It is good to describe it as an in-function function.

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