xyz.py

import random
f1=open("d:\\project_text.txt","r+")
f2=open("d:\\project1_text.txt","w+")

def main():
    line1=f1.read()
    line2=f2.read()
    a=(line1.lower().split())
    n=0
    for i in a:
        word = i
        f2.write(scramble(word))
        print(scramble(word))

def scramble(word):
    char1 = random.randint(1, len(word)-2)
    char2 = random.randint(1, len(word)-2)
    while char1 == char2:
        char2 = random.randint(1, len(word)-2)
    newWord = ""

    for i in range(len(word)):
        if i == char1:
            newWord = newWord + word[char2]
        elif i == char2:
            newWord = newWord + word[char1]
        else:
            newWord = newWord + word[i]

    return newWord
while(f1.read()!=None):
    main()
f1.close()
f2.close()