Question

Python:

The attached text file: https://drive.google.com/open?id=1Hcj4Ey4NbKHn5-vyF-foR3iny0aX8y1c

Unique Words

Write a program that opens a specified text file and then displays the number of unique words in the text file after stripping all the white spaces, comma, and the punctuation marks and a list of all the unique words found in the file. The list should be sorted in alphabetical order. The program should handle the ‘file not found’ error. Store each word as an element of list. Be sure not to use the function ‘set’ in the program.

Sample Outputs(s):

Enter the name of the input file: text
Error: File not found!

Another run…

Enter the name of the input file: text.txt
There are 171 unique words in the text.
These are the unique words in the text sorted in alphabetical order:
1,162
1,820
1840
1853
1867
2,000
400-horsepower
650-horsepower
Accordingly
Arabia
Atlantic
China Co
....
....
understand
undertaking
uproar
vessels
voyage
were
wheels
whose
will
with
without
wooden
world
years

Answer 1

Note: Please uprate and please comment for any further help.

Code Snapshot:

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Code:

import re
def main():
    list = []
    file=input("Enter the name of the input file: ")
    try:
        f = open(file)
    except IOError:
        print('Error: File not found!')
    else:
        with f:
            fileData=f.readlines()
        for x in fileData:
            x=re.sub(r'([^\w\s]|_)+(?=\s|$)', '', x) #to remove extra special character
            words=x.split(" ")
            for word in words:
                word=word.strip() #removing spaces
                if word: #checking if word is not empty
                    if word not in list:
                        list.append(word)      
      
        list.sort() # sorting the list
        print("There are "+str(len(list))+" unique words in the text.") #printing the length
        print("These are the unique words in the text sorted in alphabetical order:")
        for word in list:
            print(word) #printing word by word

main()

Output:

In [20]: runfile('C:/Users/Computer Science/Desktop/Python/UniqueFile/ listUniqueFiles.py',wdir- C:/Users/Computer Science/Desktop/Python/UniqueFile') Enter the name of the input file: text Error: File not found! In [21]: runfile('C:/Users/Computer Science/Desktop/Python/UniqueFile/ listUniqueFiles.py',wdir- C:/Users/Computer Science/Desktop/Python/UniqueFile') Enter the name of the input file: text.txt There are 171 unique words in the text These are the unique words in the text sorted in alphabetical order: 1,162 1,820 1840 1853 1867 2,000 400-horsepower 650-horsepower Accordingl

Console 1/A 400-horsepower 650-horsepower Accordingly Arabia Atlantic China 5 Cunard Eastern Eight English France Given Great Halifax If In Java Liverpool Persia Russia 8

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