Could you modify this code, a hill cipher, to look exactly how the output is supposed to look like? $($In Python$)$ Right now it is outputting the plaintext on the left, while it should be the output on the right. My spacing also might be wrong as well. Feel free to add numpy if you wish. Thanks!

My code:

import sys

#Read the key file and then return the size of the key file matrix and its numbers

def read$\_$keyFile$($keyFile$)$:

with open$($keyFile$,\text{'}$r$\text{'})$ as file:

n $=$ int$($file$.$readline$().$strip$())$

keyMatrix $=[]$

for $\_$ in range$($n$)$:

row $=$ list$($map$($int$,$ file.readline$().$strip$().$split$()))$

keyMatrix.append$($row$)$

return n$,$ keyMatrix

#Convert the plaintext file into lowercase

def read$\_$plaintextFile$($plaintextFile$)$:

with open$($plaintextFile$,\text{'}$r$\text{'})$ as file:

plainText $=$ file.read$().$lower$()$

plainText $=\text{'}\text{'}.$join$($filter$($str$.$isalpha, plainText$))$

return plainText

#Pad the plaintext file and also remove any numbers from it

def pad$\_$plainText$($plainText$,$ n$)$:

remainder $=$ len$($plainText$)\%$ n

if remainder $!=0$:

padding $=$ n $-$ remainder

plainText $+=\text{'}$x$\text{'}*$ padding

return plainText

#Encrypt the plaintext file into a matrix

def encrypt$($plainText$,$ keyMatrix$)$:

n $=$ len$($keyMatrix$)$

cipherText $=\text{'}\text{'}$

for i in range$(0,$ len$($plainText$),$ n$)$:

block $=[$ord$($char$)-$ ord$(\text{'}$a$\text{'})$ for char in plainText$[$i:i$+$n$]]$

encryptBlock $=[($sum$([$keyMatrix$[$j$][$k$]*$ block$[$k$]$ for k in range$($n$)])\%26)+$ ord$(\text{'}$a$\text{'})$ for j in range$($n$)]$

cipherText $+=\text{'}\text{'}.$join$($chr$($char$)$ for char in encryptBlock$)$

return cipherText

#Write the output of the plaintext file

def display$\_$output$($keyMatrix$,$ plainText, cipherText$)$:

print$("$

Key matrix:"$)$

for row in keyMatrix:

print$("",\text{'}\text{'}.$join$($str$($num$)$ for num in row$))$

print$("$

Plaintext:"$)$

for i in range$(0,$ len$($plainText$),80)$:

print$($plainText$[$i:i$+80])$

print$("$

Ciphertext:"$)$

for i in range$(0,$ len$($cipherText$),80)$:

print$($cipherText$[$i:i$+80])$

#Display the output of the plaintext file

def main$()$:

if len$($sys$.$argv$)!=3$:

print$("$Usage: python$3$ pa$01.$py $")$

return

keyFile $=$ sys$.$argv$[1]$

plaintextFile $=$ sys$.$argv$[2]$

n$,$ keyMatrix $=$ read$\_$keyFile$($keyFile$)$

plainText $=$ read$\_$plaintextFile$($plaintextFile$)$

plainText $=$ pad$\_$plainText$($plainText$,$ n$)$

cipherText $=$ encrypt$($plainText$,$ keyMatrix$)$

display$\_$output$($keyMatrix$,$ plainText, cipherText$)$

if $\_\_$name$\_\_==\text{'}\_\_$main$\_\_\text{'}$:

main$()$