PLEASE NOTE: THE WORD CHANGE MUST PERSIST WITHIN set_word INSTANCE.

Write a python class library that evaluates and manipulates an English sentence.

Create a class called Sentence that is in a file called Sentence.py and contains class attributes

and methods as follows:

A constructor that takes a sentence string as input.

The default value for the constructor should be an empty string

Converts the sentence to a list attribute

o First remove all punctuation

The sentence must be a private attribute in the class

get_all_words Method to get all the words in a sentence

Takes no arguments

Return: all the words in the sentence as a list

get_word Method to get one desired word from the sentence

Arguments: Number of the desired word, starting at 1

Return: The single word or an empty string for a number outside the range

It is okay for the program to crash on a noninteger argument

set_word Changes the word at a given index in sentence to a new word

Arguments: index, new_word

Does not return anything

PLEASE NOTE: THE WORD CHANGE MUST PERSIST WITHIN set_word INSTANCE.

scramble - Scrambles the words in a sentence

Takes no arguments

Return: a scrambled list of all the words in a sentence

o This does not change the sentence attribute in your sentence instance

A repr method use the builtin method

Return: The sentence list as a single string, with a period at the end

In Sentence.py, include a unit test

Place inside an if __name__ block

Instantiate the class with a sentence of your choice

Validate that the public methods in that instance work correctly

o Use assert to check for errors

At the end of your unit test, print a message that the sentence worked correctly and include

the final version of your sentence.

o For example Sentence unit test successful: my sentence