如何将字符串的最后一个字符替换为字母表的第一个字母？

Question

I am currently working on a code that moves every letter from a word, one letter up, for example: Abc becomes Bcd, (The first letter is always capital), but whenever I type z in a word then it becomes { or [ (if it is a capital letter). For example, if I type zoo, the output is "[pp" I want z to become a. So far I have tried this:

 word = input("Insert Word:")
 word = word.capitalize().replace(" ", "")

for shift in word:
  incrypt = chr(ord(shift)+1)
  print (incrypt, end='')

I have also tried using if statements like this:

word = input("Insert Word:")
word = word.capitalize().replace(" ", "")
    for shift in word:
  incrypt = chr(ord(shift)+1)
  Last_char= incrypt[-1]
  if Last_char > chr(123):
    Last_char = [chr(97)]
    print (incrypt, end='')
  elif Last_char == chr(91):
    Last_char = [chr(65)]
    print (incrypt, end='')

But it didn't work.

Answer 1

Here is a solution using join:

word = word.lower()

"".join(chr(ord('a') + (ord(w)-ord('a')+1)%26) for w in word).capitalize()

Answer 2

I would do this :

word = input("Insert Word:")
word = word.capitalize().replace(" ", "")

A,Z = ord('A'), ord('Z')
a,z = ord('a'), ord('z')

step = 1

for shift in word:
    new_char = ord(shift) + step
    
    incrypt = None
    if 'a' <= shift <= 'z':
        incrypt = chr(new_char) if new_char <= z else chr(a + (new_char - z - 1)%26 )
    elif 'A' <= shift <= 'Z':
        incrypt = chr(new_char) if new_char <= Z else chr(A + (new_char - Z - 1)%26 )
    else : 
        incrypt = shift
    print (incrypt, end='')