p.py

import random
f1=open("d:\\project_text.txt","r+")
f2=open("d:\\p.txt","w+")
line1=f1.read()
line2=f2.read()
a=(line1.lower().split())
print(a)
n=0
#def main():


def scramble(word):
    l=len(word)
    if(word[l-1]=='?' or word[l-1]=='!' or word[l-1]=='.' or word[l-1]==',' or word[l-1]==';'):        
        char1 = random.randint(1, len(word)-3)
        char2 = random.randint(1, len(word)-3)
    else:
        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


for i in a:
    if(len(i)>3):
        
        word = i
        f2.write(scramble(word)+' ')
        print(scramble(word),end=" ")
    else:
        f2.write(i+' ')
        print(i, end=" ")
f1.close()
f2.close()