Order Now

Csc…………md4ca | Computer Science homework help

Uncategorized

Case assignment: your assignment is about classes & objects, classes & functions, introspection, object & object orientation and a small database project.

Required:

 

 

  1. Read chapters 15, 16 from “Think Python: How to Think Like a Computer Scientist (Version 1.3.3)”, a reference in the background materials. Code all the examples and exercises into the Python IDLE and successfully run them. Save the final programs into Python files.
  2. Read chapters 4 & 5 from Dive into Python, a reference in the background materials. Code all the examples and exercises into the Python IDLE and successfully run them. Save the final programs into Python files.
  3. You’ve been going to work on a database project at work for sometime now. Your boss encourages you to program the database in Python. You disagree, arguing that Python is not a database language but your boss persists by providing the source code below for a sample telephone database. He asks you to do two things: 1. Evaluate the existing source code and extend it to make it useful for managers in the firm. (You do not need a GUI interface, just work on the database aspects: data entry and retrieval – of course you must get the program to run or properly work, and 2. He wants you to critically evaluate Python as a database tool.

Import the sample code below into the Python IDLE and enhance it, run it and debug it. Add features to make this a more realistic database tool by providing for easy data entry and retrieval. Export your successful program to a Python file for later upload to coursenet.

Here is the sample source code:

#!/usr/bin/python
#
# An example from Sean Reifschneider’s Python Tutorial at Linux Expo 98.
#
# Copyright (c) 1998 Sean Reifschneider, tummy.com, ltd.
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place – Suite 330, Boston, MA 02111-1307, USA.
#
# You can contact Sean Reifschneider at
# P.O. Box 270624,
# Fort Collins, CO USA 80527-0624,
# or at [email protected]
#
# Simple phone-number database module

import shelve
import string

UNKNOWN = 0
HOME = 1
WORK = 2
FAX = 3
CELL = 4

class phoneentry:
def __init__(self, name=”Unknown”, number=”Unknown”,
type = UNKNOWN):
self.name = name
self.number = number
self.type = type

# create string representation
def __repr__(self):
return(‘%s:%d’ % ( self.name, self.type ))

# fuzzy compare or two items
def __cmp__(self, that):
this = string.lower(str(self))
that = string.lower(that)

if string.find(this, that) >= 0:
return(0)
return(cmp(this, that))

def showtype(self):
if self.type == UNKNOWN: return(‘Unknown’)
if self.type == HOME: return(‘Home’)
if self.type == WORK: return(‘Work’)
if self.type == FAX: return(‘Fax’)
if self.type == CELL: return(‘Cellular’)

class phonedb:
def __init__(self, dbname=”phonedata”):
self.dbname = dbname;
self.shelve = shelve.open(self.dbname);

def __del__(self):
self.shelve.close()
self.shelve = None

def add(self, name, number, type = HOME):
e = phoneentry(name, number, type)
self.shelve[str(e)] = e

def lookup(self, string):
list = []
for key in self.shelve.keys():
e = self.shelve[key]
if cmp(e, string) == 0:
list.append(e)

return(list)

# if not being loaded as a module, run a small test
if __name__ == ‘__main__’:
foo = phonedb()
foo.add(‘Sean Reifschneider’, ‘970-555-1111’, HOME)
foo.add(‘Sean Reifschneider’, ‘970-555-2222’, CELL)
foo.add(‘Evelyn Mitchell’, ‘970-555-1111’, HOME)

print ‘First lookup:’
for entry in foo.lookup(‘reifsch’):
print ‘%-40s %s (%s)’ % ( entry.name, entry.number, entry.showtype() )
print

print ‘Second lookup:’
for entry in foo.lookup(‘e’):
print ‘%-40s %s (%s)’ % ( entry.name, entry.number, entry.showtype() )

Add all your saved Python files from requirements 1 – 3 above into a zip file. Add to the zip file, a one page description of what you have accomplished and what benefits you have achieved.

Case assignment expectations:

  • Code all the required examples and exercises and successfully run them.
  • Provide a paper describing what you accomplished and what benefits you have achieved.

When your zip file is done, send it in to CourseNet.

Continue to order Get a quote
Place your order
(550 words)

Approximate price: $22

July 1, 2023
    

 

 

 

71) The above figure shows the supply curves in four different markets. If each of the markets has an identical downward sloping demand curve and the same tax is levied on suppliers, which market would produce the smallest amount of deadweight loss?

A) A

B) B

C) C

D) D

E) A and D

 

72) The above figure shows the supply curves in four different markets. If each of the markets has an identical downward sloping demand curve and the same tax is levied on suppliers, which market would produce the largest amount of deadweight loss?

A) A

B) B

C) C

D) D

E) A and D

73) Tax incidence refers to

A) how government taxes are spent by the government.

B) the incidences of tax revolts by the taxpayers.

C) the amount of a tax minus its burden.

D) the division of the burden of a tax between the buyer and the seller.

E) tax revenue minus excess burden.

 

74) If a $1 sales tax is imposed on the sale of a CD, and neither the demand nor the supply is perfectly elastic or perfectly inelastic, then the price of a CD paid by consumers will

A) increase by $1 and fewer CDs will be bought.

B) increase by less than $1 and fewer CDs will be bought.

C) not change and the same number of CDs will be bought.

D) increase by $1 and the same number of CDs will be bought.

E) increase by more than $1 and fewer CDs will be bought.

 

75) Neither the supply of nor demand for a good is perfectly elastic or perfectly inelastic. So, imposing a tax on the good results in a ________ in the price paid by buyers and ________ in the equilibrium quantity.

A) rise; an increase

B) rise; a decrease

C) fall; an increase

D) fall; a decrease

E) a rise; no change

76) The graph shows the market for textbooks. If the government introduces a tax of $20 a textbook, then the price paid by buyers ________.

A) increases by $20

B) increases to $80 a textbook

C) decreases to $60 a textbook

D) is $70 a textbook

E) does not change because the demand for textbooks is perfectly elastic

 

77) Neither the supply of nor demand for a good is perfectly elastic or perfectly inelastic. So, imposing a tax on the good results in a ________ in the price received and kept by sellers and a ________ in the price paid by buyers.

A) rise; rise

B) rise; fall

C) fall; rise

D) fall; fall

E) no change; rise

78) Suppose the demand for barley is perfectly elastic. The supply curve of barley is upward sloping. If a tax is imposed on barley,

A) barley sellers pay the entire tax.

B) barley buyers pay the entire tax.

C) the government pays the entire tax.

D) the tax is split evenly between barley buyers and sellers.

E) who pays the tax depends on whether the government imposes the tax on barley sellers or on barley buyers.

 

79) The demand for apple pies is perfectly elastic. If the government taxes apple pies at $1 a pie, then ________.

A) the seller pays the entire tax

B) the buyer pays the entire tax

C) the seller and the buyer split the tax evenly

D) the seller and the buyer split the tax but the seller pays more

E) who pays the tax depends on whether the government imposes the tax on pie buyers or on pie sellers

80) At harvest time the supply of wheat is perfectly inelastic. If the government taxes wheat at $1 a bushel, then

A) the seller pays the entire tax.

B) the buyer pays the entire tax.

C) the seller and the buyer split the tax evenly.

D) the seller and the buyer split the tax but the seller pays more.

E) no one pays the tax because the wheat must be harvested or it will go to waste.

 

 

 

default image
July 1, 2023
    

 

 

 

71) The above figure shows the supply curves in four different markets. If each of the markets has an identical downward sloping demand curve and the same tax is levied on suppliers, which market would produce the smallest amount of deadweight loss?

A) A

B) B

C) C

D) D

E) A and D

 

72) The above figure shows the supply curves in four different markets. If each of the markets has an identical downward sloping demand curve and the same tax is levied on suppliers, which market would produce the largest amount of deadweight loss?

A) A

B) B

C) C

D) D

E) A and D

73) Tax incidence refers to

A) how government taxes are spent by the government.

B) the incidences of tax revolts by the taxpayers.

C) the amount of a tax minus its burden.

D) the division of the burden of a tax between the buyer and the seller.

E) tax revenue minus excess burden.

 

74) If a $1 sales tax is imposed on the sale of a CD, and neither the demand nor the supply is perfectly elastic or perfectly inelastic, then the price of a CD paid by consumers will

A) increase by $1 and fewer CDs will be bought.

B) increase by less than $1 and fewer CDs will be bought.

C) not change and the same number of CDs will be bought.

D) increase by $1 and the same number of CDs will be bought.

E) increase by more than $1 and fewer CDs will be bought.

 

75) Neither the supply of nor demand for a good is perfectly elastic or perfectly inelastic. So, imposing a tax on the good results in a ________ in the price paid by buyers and ________ in the equilibrium quantity.

A) rise; an increase

B) rise; a decrease

C) fall; an increase

D) fall; a decrease

E) a rise; no change

76) The graph shows the market for textbooks. If the government introduces a tax of $20 a textbook, then the price paid by buyers ________.

A) increases by $20

B) increases to $80 a textbook

C) decreases to $60 a textbook

D) is $70 a textbook

E) does not change because the demand for textbooks is perfectly elastic

 

77) Neither the supply of nor demand for a good is perfectly elastic or perfectly inelastic. So, imposing a tax on the good results in a ________ in the price received and kept by sellers and a ________ in the price paid by buyers.

A) rise; rise

B) rise; fall

C) fall; rise

D) fall; fall

E) no change; rise

78) Suppose the demand for barley is perfectly elastic. The supply curve of barley is upward sloping. If a tax is imposed on barley,

A) barley sellers pay the entire tax.

B) barley buyers pay the entire tax.

C) the government pays the entire tax.

D) the tax is split evenly between barley buyers and sellers.

E) who pays the tax depends on whether the government imposes the tax on barley sellers or on barley buyers.

 

79) The demand for apple pies is perfectly elastic. If the government taxes apple pies at $1 a pie, then ________.

A) the seller pays the entire tax

B) the buyer pays the entire tax

C) the seller and the buyer split the tax evenly

D) the seller and the buyer split the tax but the seller pays more

E) who pays the tax depends on whether the government imposes the tax on pie buyers or on pie sellers

80) At harvest time the supply of wheat is perfectly inelastic. If the government taxes wheat at $1 a bushel, then

A) the seller pays the entire tax.

B) the buyer pays the entire tax.

C) the seller and the buyer split the tax evenly.

D) the seller and the buyer split the tax but the seller pays more.

E) no one pays the tax because the wheat must be harvested or it will go to waste.

 

 

 

default image
July 1, 2023
    

 

 

 

71) The above figure shows the supply curves in four different markets. If each of the markets has an identical downward sloping demand curve and the same tax is levied on suppliers, which market would produce the smallest amount of deadweight loss?

A) A

B) B

C) C

D) D

E) A and D

 

72) The above figure shows the supply curves in four different markets. If each of the markets has an identical downward sloping demand curve and the same tax is levied on suppliers, which market would produce the largest amount of deadweight loss?

A) A

B) B

C) C

D) D

E) A and D

73) Tax incidence refers to

A) how government taxes are spent by the government.

B) the incidences of tax revolts by the taxpayers.

C) the amount of a tax minus its burden.

D) the division of the burden of a tax between the buyer and the seller.

E) tax revenue minus excess burden.

 

74) If a $1 sales tax is imposed on the sale of a CD, and neither the demand nor the supply is perfectly elastic or perfectly inelastic, then the price of a CD paid by consumers will

A) increase by $1 and fewer CDs will be bought.

B) increase by less than $1 and fewer CDs will be bought.

C) not change and the same number of CDs will be bought.

D) increase by $1 and the same number of CDs will be bought.

E) increase by more than $1 and fewer CDs will be bought.

 

75) Neither the supply of nor demand for a good is perfectly elastic or perfectly inelastic. So, imposing a tax on the good results in a ________ in the price paid by buyers and ________ in the equilibrium quantity.

A) rise; an increase

B) rise; a decrease

C) fall; an increase

D) fall; a decrease

E) a rise; no change

76) The graph shows the market for textbooks. If the government introduces a tax of $20 a textbook, then the price paid by buyers ________.

A) increases by $20

B) increases to $80 a textbook

C) decreases to $60 a textbook

D) is $70 a textbook

E) does not change because the demand for textbooks is perfectly elastic

 

77) Neither the supply of nor demand for a good is perfectly elastic or perfectly inelastic. So, imposing a tax on the good results in a ________ in the price received and kept by sellers and a ________ in the price paid by buyers.

A) rise; rise

B) rise; fall

C) fall; rise

D) fall; fall

E) no change; rise

78) Suppose the demand for barley is perfectly elastic. The supply curve of barley is upward sloping. If a tax is imposed on barley,

A) barley sellers pay the entire tax.

B) barley buyers pay the entire tax.

C) the government pays the entire tax.

D) the tax is split evenly between barley buyers and sellers.

E) who pays the tax depends on whether the government imposes the tax on barley sellers or on barley buyers.

 

79) The demand for apple pies is perfectly elastic. If the government taxes apple pies at $1 a pie, then ________.

A) the seller pays the entire tax

B) the buyer pays the entire tax

C) the seller and the buyer split the tax evenly

D) the seller and the buyer split the tax but the seller pays more

E) who pays the tax depends on whether the government imposes the tax on pie buyers or on pie sellers

80) At harvest time the supply of wheat is perfectly inelastic. If the government taxes wheat at $1 a bushel, then

A) the seller pays the entire tax.

B) the buyer pays the entire tax.

C) the seller and the buyer split the tax evenly.

D) the seller and the buyer split the tax but the seller pays more.

E) no one pays the tax because the wheat must be harvested or it will go to waste.

 

 

 

default image
Essay (any type)
August 22, 2022
    

They have a magnificent team. These people are always kind and willing to listen to your concerns or issues. Better yet, your assignment is always ready before the time, they usually send you a draft to double-check before they finalize your paper.

 

default image
Customer #32567
Zoology, 8 Pages
Case study
August 22, 2022
    

Completed quickly and followed instructions given. Grammar, spelling, etc. was all good as well. Thank you so much! Will hire in the future.

default image
Customer #30093
Biology (and other Life Sciences), 6 pages
Presentation/PPT
August 22, 2022
    

The work has not been graded but I like the output that was submitted to me. Is it possible for the same prof to do the next assignment I will be submitting? If possible, I will greatly appreciate it.

default image
Customer #37612
Computer science, 8 pages
Journal article
August 22, 2022
    

My third using this writer and absolutely amazing work! Very punctual and very understanding.

default image
Customer #34820
Agriculture, 4 pages
Article
August 22, 2022
    

Outstanding job in writing my paper. I am always thrill to receive a well written paper that follows the instructions and the thorough details put into my paper. The quality of this paper is beyond awesome. Thank you so much.

default image
Customer #17907
Technology, 5 pages
Thesis/Thesis chapter
August 22, 2022
    

I absolutely love this writer! He/she always cranks out a fabulous paper and follows the assignment guidelines/instructions perfectly. Thanks again for always providing such quality work!!!

default image
Customer #32146
Economics, 9 pages
Research paper
August 22, 2022
    

It took some time to achieve the product I was looking for, but we eventually got there. I do feel like a lot of hard work was put into this, and it even exceeded the page requirement. I'm pretty pleased overall. I give my thanks.

default image
Customer #22371
Ecology, 5 pages
Lab Report
August 22, 2022
    

Outstanding work! This writer followed every instruction and my paper came back with an A! I recommend to anyone needing help! Thank you again ❤️

default image
Customer #13712
Nursing, 6 pages
Outline
August 22, 2022
    

Outstanding job in writing my paper. I am always thrill to receive a well written paper that follows the instructions and the thorough details put into my paper. The quality of this paper is beyond awesome. Thank you so much.

default image
Customer #267302
IT, Web, 6 pages
Essay (any type)
August 22, 2022
    

Made 100% on both the outline and the paper. Quick turnaround time and my writer responded within 30 min or less. Any edits my instructor needed, my writer was patient and worked diligently to accomplish the task. Would recommend my writer to anyone!

default image
Customer #14472
International Trade, 8 pages
Essay (any type)
August 5, 2021
    

You are making my life so much easier! I am a single mom that works and goes to school. You guys are helping me with my projects so I can have more free time with my son.

default image
customer #13832
Tourism, 3 pages
Annotated Bibliography
August 5, 2021
    

I was sure it can fit in a single page but the next time I will add one more page because I am impressed with your professionalism and quality. Will use many more times till I graduate.

default image
customer #12008
Management, 7 pages
Essay (any type)
August 5, 2021
    

Simple registration and quality services. I just ordered one paper, and it was good enough to pass the exam. That is what I need the most. Good job.

default image
customer #16257
Communication, 4 pages
Research Proposal
August 5, 2021
    

I couldn’t finish my freaking essay, and I was very desperate. A friend of mine sent me a link, and that is how I found out about you guys. Thank you for professional tips and editing. Now, I understand how to write it properly.

default image
customer #17128
Law, 5 pages
Reflection
August 5, 2021
    

I’m so grateful to you since you managed to complete my term paper in one day! You are definitely the best company ever!

default image
customer #16528
Public Relations, 7 pages
Essay (any type)
August 5, 2021
    

I am sure on your ability to provide any type of paper I will order. I wish I could develop that skill your writers have to be able to have a flow of ideas and excellent sequencing of thoughts in writing.

default image
customer #19552
Medicine, 5 pages
Coursework
August 5, 2021
    

I ordered a thesis paper and was satisfied. All the guys were polite and highly professional, even when I wrote to them several times per day. Thanks for your passion!

default image
customer #20376
Nursing, 6 pages
Discussion Essay
August 5, 2021
    

I turned to the service twice, and my papers always were beyond the expectations. To tell the truth, I was ready to find some grammar errors or something like that. However, everything was neat and tidy.

default image
customer #18529
Marketing, 1 page
August 5, 2021

My friend recommended Doctor My Essay to me. It is convenient! Now we both turn to the service periodically coz wanna save some time and use it more effectively. I know that while I’m developing my startup, an expert is working on paper. Time management in work!

default image
Research Paper
August 5, 2021
    

I write all paper works by myself but have some problems with literacy. Actually, I have enormous problems because English is not my native language. However, with proofreading from Doctor My Essay, I can relax and don’t be ashamed of mistakes.

default image
customer #12924
Business, 7 pages
Argumentative Essay
August 5, 2021
    

Your ability to write concisely is a finding. The paper has a solid argument. It’s clear that the writer understood central claim about the topic. He also presented original ideas to consider.

default image
customer #19304
Management, 3 pages
Coursework
August 5, 2021
    

That paper got the highest grade in my class and the professor thinks I’m the smartest student. Lol.

default image
customer #12387
Accounting, 6 pages
Essay (any type)
August 5, 2021
    

I was convinced that paper writing services are the fiction for naive students. But when it came to my research paper that was to be composed in 72 hours, I had no other options. I made the right choice when I ordered it from you!

default image
customer #12924
Ethics, 4 pages
Business Plan
August 5, 2021
    

I was also satisfied with the service. Usually, I write everything by myself, but this time ( I have no idea how it happens!) I missed the deadline. My writer was very responsible, wrote the essay quickly, and kept the instructions. Nice to know that such experts exist!

default image
customer #15677
Marketing, 10 pages
Annotated Bibliography
August 5, 2021
    

It is really affordable! The prices start from 9$, which is an excellent proposal on the market. Recently I worked with another service that took much more money and provided lower quality papers.

default image
customer #11234
Sociology, 9 pages
Research proposal
August 5, 2021
    

I am absolutely satisfied. I am first timer here. Revision was made quickly, and the author met my expectations. Thanks a lot. Paper is phenomenal.

default image
customer #15327
Economics, 5 pages
Essay (any type)
August 5, 2021
    

Having heard a lot of negative reviews about such services, I was a bit skeptical. However, our cooperation with Doctor My Essay was without pitfalls. I made two comments about the final work, and they re-wrote some parts very promptly. I am satisfied and will turn to them in the future.

default image
customer #17823
Human Resource Management, 2 pages
Research paper
August 5, 2021
    

It was my first experience in online ordering, and I was a bit nervous. However, this was for nothing. I’ve got a high mark!

default image
customer #12372
Public Relations, 3 pages
Dissertation
August 5, 2021
    

I understand that buying essays is a doubtful thing. You don’t put effort, don’t represent your ideas… However, I don’t perceive Doctor My Essay as a standard service. They don’t sell papers. They share high expertise!

default image
customer #12376
Journal article, 20 pages
Coursework
August 5, 2021
    

According to my previous experience, this service is really the best. They support the client and have competitive writers. I give them a perfect score!

default image
customer #19266
Political Science, 6 pages
Admission Essay
August 5, 2021
    

Nice service! It is cool that you can use the calculator on the main page and understand the price policy. For me, it is a huge plus!

default image
customer #11437
Tourism, 1 page
Discussion Essay
August 5, 2021
    

Thanks to God I found this service! If I didn’t send my research to the teacher on time, he would eat me. I tell you! However, with doctor my essay service, I met the deadline, and I am still alive.

default image
customer #12692
Philosophy, 5 pages
Report
August 5, 2021
    

Your service is excellent! Convenient and not expensive. Thanks for that!

default image
customer #10923
Psychology, 4 pages
Essay (any type)
August 5, 2021
    

If you have problems with time management, just like me, you need to cooperate with Doctor My Essay. Once you registered and made the order, you understand how easier it makes your life! Everything is online: ordering, communication… You can control the process everywhere and be sure that an expert will provide a high-level paper.

default image
customer #17823
Business, 8 pages

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more