Python for Everybody: The Ultimate Python 3 Bootcamp - Nested Functions

The video tutorial introduces the concept of nested functions in Python, explaining how functions can be defined within other functions. It provides examples to illustrate the concept, including how nested functions can be used to encapsulate logic and return entire functions. The tutorial also touches on the practical applications of nested functions, such as organizing code and preparing for decorators, which will be covered in future lessons.

What is a nested function in Python?

• A function defined inside another function.

• A function that takes no parameters.

• A function that calls itself.

• A function that is defined globally.

Why might you use a nested function?

• To increase the global scope of a function.

• To organize code and limit the scope of a function.

• To make a function run faster.

• To allow a function to be called from anywhere in the program.

In the example with parent and child functions, what is necessary for the child function to execute?

• It must be the first function defined.

• It must have the same parameters as the parent function.

• It must be called explicitly within the parent function.

• It must be defined outside the parent function.

What does it mean to return a function from another function?

• The function returns a string representation of itself.

• The function returns a function object that can be called later.

• The function returns nothing.

• The function returns a value to the global scope.

In the example with the dog and speak functions, what does the dog function return?

• A string 'Woof Woof'.

• The speak function itself.

• A number 159.

• Nothing, it just prints a message.

How can nested functions help in organizing code?

• By encapsulating logic and reducing code complexity.

• By allowing functions to be reused globally.

• By increasing the number of lines in a program.

• By making the code run faster.

What is a decorator in Python?

• A function that takes no parameters.

• A function that is called automatically.

• A function that returns a string.

• A function that modifies another function.