Afile 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]));