Question

Learn how to use the advanced data structures (such as: list, tuple, string, dictionary, and set)

·         Learn and practice how to use functions.

·         Learn and practice how to use file I/Os.

·         Appreciate the importance of data validations.

·         Provide appropriate documentation and good programming style.

Description of the problem:

Write a “censor” program that first reads a file with “bad words” such as “sex”, “drug”, “rape”, “kill”, and so on, places them in a set, and then reads an arbitrary text file. The program should write the text to a new file, replacing each letter of any bad word in the text with an asterisk.

Requirements:

·         Filename for the bad words is called:  badWord.txt

·         Filename for the 2^nd arbitrary text file is called:  anyFile.txt

·         Filename for the 3^rd output file is called:  good.txt

please also provide algorithim for this program and with output showing on the screen

Answer 1

Python 3.6 Code

Note: the indentation of this code is being lost while pasting it here. Refer to the provided screenshot for proper indentation.

#open the file badWord.txt in read mode
f=open("badWord.txt","r")
#create array of lines in badWord.txt
#assuming every line has a single word
temp=f.readlines()
a=[]
#the words will be having a "\n" at their end
#that "\n" needs to be striped so that we can compare the
#exact words
#Array 'a' will contain all words separately
for i in temp:
a.append(i.strip("\n"))
#close the file badWord.txt
f.close()

#ask user for the input file name
print("Enter file name: ")
file_name=input()

#open the arbitrary file
f=open(file_name,"r")
#read all the data as a string
data=f.read()
#create an array of all words by splitting the string
#from " "(spaces)
d=data.split(" ")
d1=[]
#the words are still not as they should be
#words may have a full-stop(.),"\n" or "\t" at ends
#strip the words of any undesired character
for i in d:
temp=i.strip(".")
temp1=temp.strip("\n")
d1.append(temp1.strip("\t"))
#d1 contains pure words which can be compared
#closing the arbitrary file
f.close()
print("Data read from entered file: ")
print(data)
#check for every word in d1 if it is in a
#that is if it is a bad word then
#replace the bad word with "*"
for i in d1:
if i in a:
data=data.replace(i,"*")
#the string data(which was read from the arbitrary file)
#now has bad words replaced with "*"
#it can be written to the new file
print("\nData with replaced bad words: ")
print(data)
#create a new file
f=open("good.txt","w")
f.write(data)
f.close()
print("Good file created!")

Screenshot

badWord.txt

anyFile.txt

good.txt

OUTPUT

Algorithm

>Start

>open file badWord.txt

>assign temp to f.readlines()

>create an empty array 'a'

>for every element in temp array

strip that element with "\n"

add striped element to new array a

>close the file badWord.txt

>read file name

>open the file with entered name

>read data to a string and assign it to 'data variable'

>split data string with " " and create an array of splitted words and name it as d

>create empty array d1

>for every element element in d

strip it of "," and store in temp

strip temp of "\n" and store in temp

strip temp1 of "\t" and add in array d1

>close the file with entered file name

>display the data read from entered file

>loop through all elements of d1

if the element is in the set of bad words then replace that word in data string with "*"

>display the modified data string

>create a new file 'good.txt'

>write the data string to it

>close the file

>Stop