Using Python, how would I alter the functions for atbash_encrypt() and atbash_decrypt(crypto) so that they'll be able to work with ab.atbash_encrypt('HELLO') and ab.atbash_decrypt('SVOOL')?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Using Python, how would I alter the functions for atbash_encrypt() and atbash_decrypt(crypto) so that they'll be able to work with ab.atbash_encrypt('HELLO') and ab.atbash_decrypt('SVOOL')?

def atbash_encrypt():
alpha
reverse_alpha = 'ZYXWVUTSRQPONMLKJIHGFEDCBA'
input_string
output_string
for character in input_string:
= 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
= input ('Enter string: ')
output (alpha, reverse_alpha, character)
if reverse == None:
output_string = None
%3D
break
else:
output_string += reverse
print('Reverse string:', output_string)
def atbash_decrypt(crypto):
alpha ='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
reverse_alpha ='ZYXWVUTSRQPONMLKJIHGFEDCBA'
crypto = crypto.upper()
%3D
message =
for character in crypto:
if character in reverse_alpha:
= reverse_alpha.find(character)
message = message + alpha[character_index]
else:
message = message + character
return message
Transcribed Image Text:def atbash_encrypt(): alpha reverse_alpha = 'ZYXWVUTSRQPONMLKJIHGFEDCBA' input_string output_string for character in input_string: = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' = input ('Enter string: ') output (alpha, reverse_alpha, character) if reverse == None: output_string = None %3D break else: output_string += reverse print('Reverse string:', output_string) def atbash_decrypt(crypto): alpha ='ABCDEFGHIJKLMNOPQRSTUVWXYZ' reverse_alpha ='ZYXWVUTSRQPONMLKJIHGFEDCBA' crypto = crypto.upper() %3D message = for character in crypto: if character in reverse_alpha: = reverse_alpha.find(character) message = message + alpha[character_index] else: message = message + character return message
import both of the functions from atbash.py below, such that the code
ab.atbash_encrypt('HELLO') and ab.atbash_decrypt('SVOOL') both execute without
issue.
The assert cells below this question only test the import.
N # YOUR CODE HERE
from atbash import atbash_encrypt
from atbash import atbash_decrypt
I assert callable(ab.atbash_encrypt)
# hidden test to ensure atbash_encrypt works on import
NameError
Traceback (most recent call last)
<ipython-input-16-8858e219fd8d> in <module>
----> 1 assert callable(ab.atbash_encrypt)
2
3 # hidden test to ensure atbash_encrypt works on import
NameError: name
ab
is not defined
N assert callable(ab.atbash_decrypt)
# hidden test to ensure atbash_decrypt works on import
Transcribed Image Text:import both of the functions from atbash.py below, such that the code ab.atbash_encrypt('HELLO') and ab.atbash_decrypt('SVOOL') both execute without issue. The assert cells below this question only test the import. N # YOUR CODE HERE from atbash import atbash_encrypt from atbash import atbash_decrypt I assert callable(ab.atbash_encrypt) # hidden test to ensure atbash_encrypt works on import NameError Traceback (most recent call last) <ipython-input-16-8858e219fd8d> in <module> ----> 1 assert callable(ab.atbash_encrypt) 2 3 # hidden test to ensure atbash_encrypt works on import NameError: name ab is not defined N assert callable(ab.atbash_decrypt) # hidden test to ensure atbash_decrypt works on import
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