A file concordance tracks the unique words in a file and their frequencies. Write a program that displays a concordance for a file. The program should output the unique words and their frequencies in alphabetical order. Variations are to track sequences of two words and their frequencies, or n words and their frequencies. Below is an example file along with the program input and output: example. txt

Python file with appropriate comments given below

Explanation:

#Take the input file name

filename=input ('Enter the input file name: ')

#Open the input file

inputFile = open (filename,"r+")

#Define the dictionary.

list={}

#Read and split the file using for loop

for word in inputFile. read (). split ():

#Check the word to be or not in file.

if word not in list:

list[word] = 1

#increment by 1

else:

list[word] + = 1

#Close the file.

inputFile. close ();

#print a line

print ();

#The word are sorted as per their ASCII value.

fori in sorted (list):

#print the unique words and their

#frequencies in alphabetical order.

print ("{0} {1} ". format (i, list[i]));