CSC 242: Introduction to Computer Science II
Assignment 9
Due Thursday, June 18th, 11:59 pm
Reading
Review Chapter 10 and read Chapter 11 in Introduction to Computing using Python: An
Application Development Focus, Second Edition by Ljubomir Perković.
Logistics
In this class programming assignments may be completed in consultation with up to two other
classmates. You must identify the classmates with whom you collaborate in a comment at the
top of the assignment, and the number of collaborators on any assignment may not exceed
two other people. You must also submit a comment in your submission for each assignment
that describes in detail how each collaborator contributed to the assignment. If you did not
collaborate with anyone on the assignment, you must include a comment that says that. You
may not under any circumstances discuss the assignments with classmates other than your
identified collaborators. Working so closely with anyone other than your identified
collaborators, Mr. Zoko or the teaching assistant, so as to produce identical or near identical
code is a violation of the Academic Integrity policy. This policy will be strictly enforced.
Please include the following with your assignment submission:
1. A comment at the top of your Python file identifying any classmates with whom you
discussed or in any other way collaborated on the assignment. You may work (directly
or indirectly) with no more than two other people.
2. Add a comment at the top of your Python file that describes for each person what they
contributed to the assignment. This must be at least 2-3 sentences and be very specific
and detailed.
A submission that does not include a list of collaborators and comments indicating how you
collaborated with classmates will earn a 0. If you worked alone you must put a comment at the
top of your file that indicates that or you will also receive a 0. There will be no exceptions to this
ule.
Again, you are subject to all the rules specified in the Academic Integrity policy. Please read it
carefully before beginning this assignment.
Assignment
Please remember that you are not allowed to consult online resources when completing
homework assignments. If you have questions about this assignment, please contact me.
Implement the functions below in a file called csc242hw9.py a template for which has been
provided on the D2L site. You must include appropriate doc strings (e.g. strings that appear on
the line following the function header) to the class that clearly and concisely describe what the
functions are doing. A submission without doc strings will not earn full credit.
The functions written for this assignment must be recursive and must not use global variables.
Do not modify the function names or parameters in the template file. Each function will use a
loop, but the main work of the function will be done using recursion. Please read the problem
description carefully. Function that are described as returning values should not do any
printing. Solutions that do not follow these guidelines will not earn full credit, even if they
produce the co
ect results in all cases.
Please note that local variables (not global) are absolutely fine in any of the functions.
1: Develop a GUI game that implements a number guessing game. When started, a secret
andom number between 0 and 9 is chosen. The user is then requested to enter number
guesses. Your GUI should have an Entry widget for the user to type the number guess and a
Button widget to enter the guess. You must use Grid formatting.
A label at the top shows how many guesses you’ve taken in the cu
ent game and how many
games you’ve played.
The game should automatically restart after each round.
3 bad guesses were made:
The 4th guess was co
ect, the number 4:
The game resets but the completed count increases.
2. Implement a recursive function dirsWithFiles() that takes as parameters the name of a
directory. The function should return a list containing the full pathname of all
occu
ences of directories that contains files (containing only directories doesn’t
count). Please note that your function must work as described on any directory
structure, not just the one provided as an example. The following illustrates a sample
set of directories located in the zip file containing the assignment template.
3. Implement a recursive function fileContents () that takes as parameters the name of a
folder. The function will return a string representing the contents of all the files in the
directory hierarchy. Please note that your function must work as described on any
directory structure, not just the one provided as an example. You must use recursion to
go through the subfolders. You may not use python crawlers or apis other than the
ones used in the antivirus-redux example to find files in sub directories. Doing so will be
an automatic 0 for this problem. You may use a for loop to loop through the contents of
a folder. The following illustrates a sample set of folders and directories located in the
zip file containing the exam template. You don’t need to wo
y about punctuation, case
or file e
or handling for this problem.
print(fileContents('Test'))
4. Write a custom parser named ListParser. It will find any list element and print of the
values to the screen. Note. You should remove any blank list items.
5. Write a HTMLParser that extracts all the Majors and Degrees from the CDM web site.
https:
www.cdm.depaul.edu/academics/Pages/Majors-and-Degrees.aspx. Here is an example
of the html that the parser will be concerned with:
You will see the values in the first column on the page:
https:
www.cdm.depaul.edu/academics/Pages/Majors-and-Degrees.aspx
Submitting the assignment
You must submit the assignment using the assignment 9 dropbox on the D2L site. Submit a
Python file (csc242hw9.py) with your implementation in it and comments describing your
collaboration status. Submissions after the deadline listed above will be automatically rejected
y the system. See the syllabus for the grading policy.
Grading
The assignment is worth 100 points. Each question is worth 20 points Any student who does
not submit comments in the Python file describing the contributions of each team member or
indicating that he/she worked alone will earn a 0 on the assignment.
http:
d2l.depaul.edu
import os
from tkinter import Label, Tk, Entry, Button, END
from tkinter.messagebox import showinfo
from random import randrange
class GuessingGame(Tk):
def __init__(self,parent=None):
'constructor'
XXXXXXXXXXTk.__init__(self, parent)
XXXXXXXXXXpass
def make_widgets(self):
XXXXXXXXXXpass
def updateLabel(self):
XXXXXXXXXXpass
def new_game(self):
XXXXXXXXXXpass
def checkNumber(self):
XXXXXXXXXXpass
def dirsWithFiles(root):
pass
def fileContents(root):
pass
from html.parser import HTMLParse
from urllib.parse import urljoin
from urllib.request import urlopen
def testLParser(url):
content = urlopen(url).read().decode()
parser = ListParser()
parser.feed(content)
return parser.getListItems()
class ListParser(HTMLParser):
def __init__(self):
XXXXXXXXXXHTMLParser.__init__(self)
XXXXXXXXXXpass
def handle_starttag(self, tag, attrs):
XXXXXXXXXXipas
def handle_endtag(self, tag):
XXXXXXXXXXpass
def handle_data(self, data):
XXXXXXXXXXpass
def getListItems(self):
XXXXXXXXXXpass
from html.parser import HTMLParse
from urllib.parse import urljoin
from urllib.request import Request, urlopen
#'https:
www.cdm.depaul.edu/academics/Pages/Majors-and-Degrees.aspx'
import ssl
def testDegreeOfferParser(url):
ctx = ssl.create_default_context()
ctx.check_hostname = False
ctx.verify_mode = ssl.CERT_NONE
req = Request(url)
req.add_header('User-agent','Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/ XXXXXXXXXXKHTML, like Gecko) Chrome/ XXXXXXXXXXSafari/537.36 Edg/ XXXXXXXXXX')
content = urlopen(req, context=ctx).read()
content=str(content)
parser = DegreeOfferParser()
parser.feed(content)
return parser.getPrograms()
class DegreeOfferParser(HTMLParser):
def __init__(self):
XXXXXXXXXXHTMLParser.__init__(self)
XXXXXXXXXXspass
def handle_starttag(self, tag, attrs):
XXXXXXXXXXpass
def handle_endtag(self, tag):
XXXXXXXXXXpass
def handle_data(self, data):
XXXXXXXXXXpass
def getPrograms(self):
XXXXXXXXXXpass
print(dirsWithFiles('Test'))
print(fileContents('Test'))
print(testLParser('http:
zoko.cdm.depaul.edu/csc242/lists.html'))
print(testDegreeOfferParser('https:
www.cdm.depaul.edu/academics/Pages/Majors-and-Degrees.aspx'))
from tkinter import Button, Label,Tk,Text,INSERT,TOP,LEFT,RIGHT,END,filedialog, Scale, HORIZONTAL
from tkinter.messagebox import showinfo
#Put problem 1 here.
def stringWithVowelCount(lst):
pass
print(stringWithVowelCount([]))
print(stringWithVowelCount([[1,'Test',2.0,'v','other',1,2,'
',8,9,10]]))
print(stringWithVowelCount([[[[[[[[['nnnnnnnnn']]]]]]]]]))
print(stringWithVowelCount([[1,'Anthony',2,3],[4,[[[5,[[[6,'Bob']]]]]]]]))
print(stringWithVowelCount([[[[[[[[[10,20],'Carl']]]]]]]]))
print(stringWithVowelCount([[[[[[[[[]]]]]]]]]))
import os
def dirPrint(pathname, indent):
'''recursively scans all files contained, directly o
indirectly, in the folder pathname'''
pass
#dirPrint('count',4)
#dirPrint('Test',6)
def frequency(pathname, word,count):
pass
print('FREQUENCY: \n', frequency('Test','assign',1))
print('FREQUENCY: \n', frequency('Test-2','e',2))
print('FREQUENCY: \n', frequency('Test','e',2))
print('FREQUENCY: \n', frequency('Test-2','Zoko',1))
print('FREQUENCY: \n',