xor.py

def encryptDecrypt(inpString): 
 
    xorKey = 'P'; 
  
    # calculate length of input string 
    length = len(inpString); 
  
    # perform XOR operation of key 
    # with every caracter in string 
    for i in range(length): 
      
        inpString = (inpString[:i] + 
             chr(ord(inpString[i]) ^ ord(xorKey)) +
                     inpString[i + 1:]); 
        print(inpString[i], end = ""); 
      
    return inpString;