Simple Caesar Shifting Decryption Script

ceasar derypt

#Caesar Shift Decryption Code
def encrypt(string, shift):
 
  cipher = ''
  for char in string: 
    if char == ' ':
      cipher = cipher + char
    elif  char.isupper():
      cipher = cipher + chr((ord(char) - shift - 65) % 26 + 65)
    else:
      cipher = cipher + chr((ord(char) - shift - 97) % 26 + 97)
  
  return cipher
 
text = input("enter string: ")
s = int(input("enter shift number: "))
print("original string: ", text)
print("after encryption: ", encrypt(text, s))