Question

use the same function to read a file called “example.txt”, filled in with a few sentences or a paragraph. Then write a function called typoglycemia, which scrambles the letters in the words in the file leaving the first and last characters unchanged and then writes the results to a new file called “scrambled.txt”

write in python 3

Answer 1

Before going to program this problem, first we need to define certain rules which is necessary to follow before implementing the problem.

Rules to be followed:-

- Words less than or equal to 3 characters need not be scrambled.

- Don't scramble first and last char, so Scrambling can become Srbmnailcg or Srbmnailcg or Snmbracilg, i.e letters except first and last can be scrambled in any order.

- Punctuation at the end of the word to be maintained as is i.e. "Suprising, " cound become "Spsirnirug, " but not "Spsirn,irug".

- Following punctuation marks are to be supported - Comma, Question mark, Full Stop, Semicolon, Exclamation

- Do this for a file and maintain sequences of lines.

Below is the implementation:-

def typoglycemia():

import random

punct = (".", ";", "!", "?", ",")

count = 0

new_word = ""

inputfile = input("Enter input file name:")

with open(inputfile, 'r') as fin:

for line in fin.readlines(): #Read line by line in txt file

for word in line.split(): # Read word by word in each line

if len(word) > 3: # If word length >3

'''If word ends with punctuation, Remove first letter, last letter and punctuation

shuffle the words: Add the removed letters at their respective positions'''

if word.endswith(punct):

word1 = word[1:-2]

word1 = random.sample(word1, len(word1))

word1.insert(0, word[0])

word1.append(word[-2])

word1.append(word[-1])

''' If there is no punctuation mark: Remove first and last letter.

Shuffle the word then add removed letters at their respective position'''

else:

word1 = word[1:-1]

word1 = random.sample(word1, len(word1))

word1.insert(0, word[0])

word1.append(word[-1])

new_word = new_word + ''.join(word1) + " "

''' If word length <3, just append the word and " " to the the previous words'''

else:

new_word = new_word + word + " "

with open((inputfile[:-4] + "scrambled.txt), 'a+') as fout:

fout.write(new_word + "\n")

new_word = ""

Call the function by typoglycemia() and give the input file file name. It will return you the scrambled.txt file as output.

Example:-

Input : example.txt ->

Scrambling words is very interesting. Because even if they are scrambled, it doesn't impact our reading.

Because we don't read letter by letter, we read the word as a whole.

Output : scrambled.txt ->

Srbmnacilg wrods is very itrensientg. Bscauee even if tehy are srelabcmd, it dosn'et ipcmat our raidneg.

Bacusee we dn'ot raed lteetr by letetr, we raed the wrod as a wolhe.