Aug-30-2018, 07:36 PM
import alphabet_positon letter = input("Enter a letter: ") def alphabet_position(letter): alphabet_pos = {'A':0, 'a':0, 'B':1, 'b':1, 'C':2, 'c':2, 'D':3, 'd':3, 'E':4, 'e':4, 'F':5, 'f':5, 'G':6, 'g':6, 'H':7, 'h':7, 'I':8, 'i':8, 'J':9, 'j':9, 'K':10, 'k':10, 'L':11, 'l':11, 'M':12, 'm':12, 'N': 13, 'n':13, 'O':14, 'o':14, 'P':15, 'p':15, 'Q':16, 'q':16, 'R':17, 'r':17, 'S':18, 's':18, 'T':19, 't':19, 'U':20, 'u':20, 'V':21, 'v':21, 'W':22, 'w':22, 'X':23, 'x':23, 'Y':24, 'y':24, 'Z':25, 'z':25 } pos = alphabet_pos[letter] return pos def rotate(letter, rot): shift = 97 if letter.islower() else 65 return chr((ord(letter) + rot - shift) % 26 + shift) letter = input('Enter a letter: ') rot = int(input('Enter a number: ')) print(rotate(letter, rot)) def vigenere_cipher(plaintext, key): """Encrypt plaintext using a key.""" return ''.join([ encrypt_letter(letter, key) for letter, key in cipher_list(plaintext, key)])When I try to run the code, nothing returns