Next Letter in alphabet

Question

I am stuck on how to make Z turn into A on the cs circles problem Next Letter

x =input()

x=x.upper()

x=chr(ord(x) + 1)

print(x)

how do i get z to turn into A?

Answer 1

Using chr and ord:

def next_alpha(s):
    return chr((ord(s.upper())+1 - 65) % 26 + 65)

for s in 'abcdefghijklmnopqrstuvwxyz':
    print('%s --> %s' % (s, next_alpha(s)))

a --> B
b --> C
...
y --> Z
z --> A