RajuSonwani
commented
4 years ago def find_in_list(query, mainlist): mainlist_len = len(chars) range_for_loop = range(mainlist_len) for i in range_for_loop: element = mainlist[i] if element== query: index = i break return i
chars = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'] shifted_chars = ['c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','a','b']
def encrypt_message(plain_msg): encrypted_msg="" for character in plain_msg: if character in chars: char_index = find_in_list(character, chars) new_char = shifted_chars[char_index] encrypted_msg = encrypted_msg + new_char else: encrypted_msg = encrypted_msg + character return encrypted_msg
def decrypt_message(encrypted_msg): decrypted_msg="" for character in encrypted_msg: if character in shifted_chars: char_index = find_in_list(character, shifted_chars) new_char = chars[char_index] decrypted_msg = decrypted_msg + new_char else: decrypted_msg = decrypted_msg + character return decrypted_msg
flag = True
while flag == True:
choice = input("What do you want to do? 1. Encrypt a message 2. Decrypt a message Enter e or d respectively!")
if choice =='e':
plain_message = input("Enter message to encrypt??")
print(encrypt_message(plain_message))
elif choice =='d':
encrypted_msg = input("Enter message to decrypt?")
print(decrypt_message(encrypted_msg))
flag*=False
else:
flag=True
while flag==True:
play_again = input("Do you want to try agian or Do you want to exit? (Y/N)")
if play_again == 'Y':
choice =input("What do you want to do? 1. Encrypt a message 2. Decrypt a message Enter e or d respectively!")
if choice =='e':
plain_message = input("Enter message to encrypt??")
print(encrypt_message(plain_message))
elif choice =='d':
encrypted_msg = input("Enter message to decrypt?")
print(decrypt_message(encrypted_msg))
elif play_again == 'N':
print("exit")
break
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i did it.
abhishekgupta92
Python debugging part3 debugging question3
http://saral.navgurukul.org/api/course?id=18