Write a standalone function partyVolume() that takes accepts one argument, a string containing the name of a file. The objective of the function is to determine the Volume object that is the result of many people at a party turning the Volume up and down. More specifically: the first line of the file is a number that indicates the initial value of a Volume  The remaining lines consist of a single character followed by a space followed by a number.  The character will be one of ‘U” or ‘D’ which stand for “up” and “down” respectively.  The function will create a new Volume object and then process each line of the file by calling the appropriate method of the Volume object which changes the value of the Volume.  The function then returns the final Volume object.

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
icon
Related questions
Question

Please use Python for this question. 

Please make sure the code is formatted correctly in Python as well please.

 

  1. Write a standalone function partyVolume() that takes accepts one argument, a string containing the name of a file. The objective of the function is to determine the Volume object that is the result of many people at a party turning the Volume up and down. More specifically: the first line of the file is a number that indicates the initial value of a Volume  The remaining lines consist of a single character followed by a space followed by a number.  The character will be one of ‘U” or ‘D’ which stand for “up” and “down” respectively.  The function will create a new Volume object and then process each line of the file by calling the appropriate method of the Volume object which changes the value of the Volume.  The function then returns the final Volume object.   Guidelines/hints:

    • This is a standalone function, it should NOT be inside (indented within) the class. It should be listed in the module after the Volume class and without indentation.

    • Note that the first line of the file will be treated differently than all the other lines. Probably the easiest way to do this is to 1) open the file, 2) call the .readline() method (no s!) which reads a single line, the initial value of the Volume, then 3) call the .readlines() method which reads the rest of the lines.  Item 2) will be used to set the initial Volume and 3) will be iterated over to represent turning the volume up and down some number of time.

    • Make sure you return the final Volume

 

Output Answer of this question:

 

##### partyVolume #####

>>> partyVolume('party1.txt')
Volume(6.35)
>>> partyVolume('party2.txt')
Volume(3.75)
>>> partyVolume('party3.txt')
Volume(0.75)

# make sure return not print

>>> partyVolume('party1.txt')==Volume(6.35) # return not print
True
>>> partyVolume('party2.txt')==Volume(3.75)
True
>>> partyVolume('party3.txt')==Volume(0.75)
True

 

party1.txt:

2.35
U 5
D 3
U 2

 

party2.txt:

18.3
D 8.5
U 0.0
D 2.0
D 6.0
U 8.75
D 5.5
D 2.5
D 0.75
U 9.75
D 9.0
U 7.0
D 5.5
D 0.0
U 3.75
U 6.0
U 1.25
D 4.5
D 2.75
D 9.5
U 6.5
D 6.25
D 2.0
U 3.75
D 1.75
U 9.0
U 1.0
D 2.75
D 3.75
U 2.75
U 5.75
D 8.25
D 2.75
U 3.75
D 0.25
D 8.0
D 2.0
D 3.5
D 0.0
U 8.5
U 1.0
U 8.5
U 1.0
D 6.25
U 5.0
U 5.5
D 3.25
U 6.5
U 7.25
D 7.25
D 0.0

 

party3.txt:

-3.5
U 2.5
U 9.75
D 9.5
D 5.0
U 2.75
U 4.5
D 1.75
D 8.25
D 1.25
D 2.25
U 8.25
U 2.5
U 2.0
U 0.25
D 4.25
U 2.5
U 4.0
U 3.0
D 6.25
U 9.75
U 4.0
U 3.75
D 9.0
U 8.75
U 2.75
D 8.5
D 6.25
D 1.0
U 4.75
D 5.5
D 1.25
D 9.5
D 6.0
D 5.5
U 6.5
D 7.0
U 7.75
D 1.25
U 5.5
D 2.75
D 0.5
U 5.0
U 4.25
D 5.25
U 7.0
U 4.5
D 5.75
D 0.0
U 0.0
D 4.5

 

 

 

 

Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Recommended textbooks for you
Computer Networking: A Top-Down Approach (7th Edi…
Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON
Computer Organization and Design MIPS Edition, Fi…
Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
Concepts of Database Management
Concepts of Database Management
Computer Engineering
ISBN:
9781337093422
Author:
Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:
Cengage Learning
Prelude to Programming
Prelude to Programming
Computer Engineering
ISBN:
9780133750423
Author:
VENIT, Stewart
Publisher:
Pearson Education
Sc Business Data Communications and Networking, T…
Sc Business Data Communications and Networking, T…
Computer Engineering
ISBN:
9781119368830
Author:
FITZGERALD
Publisher:
WILEY