Help now pleasePython EscMutable Functions: Implement a function sentence_buffer which returns another one-argument function. This function will take in one word at atime, and it saves all the words that it has seen so far. If it takes in a word that ends in a period (""), that denotes the end of a sentence, and thefunction returns all the words in the sentence. It will also clear its memory, so that it no longer remembers any words.Your solution should contain nonlocal variable. Do not use a list variable to hold the words.def sentence_buffer():"""Returns a function that will return entire sentences when itreceives a string that ends in a period.>>> buffer= sentence_buffer()>>> buffer ("This")>>> buffer ("is")>>> buffer("Spot.")This is Spot.">>> buffer("See")>>> buffer ("Spot")>>> buffer("run.")'See Spot run."wwwF1@2WXF2#3JEF354ĜRF4%5F5T☀AF66Y☀&7PrtScn8UHomeF9EndF10100PgUr

Answered: Mutable Functions: Implement a function…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Help now please Python

Esc
Mutable Functions: Implement a function sentence_buffer which returns another one-argument function. This function will take in one word at a
time, and it saves all the words that it has seen so far. If it takes in a word that ends in a period (""), that denotes the end of a sentence, and the
function returns all the words in the sentence. It will also clear its memory, so that it no longer remembers any words.
Your solution should contain nonlocal variable. Do not use a list variable to hold the words.
def sentence_buffer():
"""Returns a function that will return entire sentences when it
receives a string that ends in a period.
>>> buffer= sentence_buffer()
>>> buffer ("This")
>>> buffer ("is")
>>> buffer("Spot.")
This is Spot."
>>> buffer("See")
>>> buffer ("Spot")
>>> buffer("run.")
'See Spot run."
www
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6
Y
☀
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PgUr

Expert Solution

Step 1: Algorithm:

Step-1: Start
Step-2: Define function sentence_buffer()
Step-2.1: Declare variable buffer and assign ""
Step-2.2: Define function inner(word)
Step-2.2.1: Declare nonlocal buffer
Step-2.2.2: If buffer equal to "" then In buffer assign word
Step-2.2.3: else
Step-2.2.3.1: In buffer assign buffer + " " + word
Step-2.2.4: If word.endswith(".")
Step-2.2.4.1: Declare variable result and assign buffer
Step-2.2.4.2: In buffer assign ""
Step-2.2.4.3: Return result
Step-2.2.4: Return None
Step-2.3: Return inner
Step-3: In main
Step-3.1: Declare variable buffer and call function sentence_buffer()
Step-3.2: Print buffer("This")
Step-3.3: Print buffer("is")
Step-3.4: Print buffer("Spot.")
Step-3.5: Print buffer("See")
Step-3.6: Print buffer("Spot")
Step-3.7: Print buffer("run.")
Step-4: Stop

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