code: def aes_pad(s, block_size=32, padding='{'):
      
      return s + (block_size - len(s) % block_size) * padding
docs: Adds padding to get the correct block sizes for AES encryption
  
          @s: #str being AES encrypted or decrypted
          @block_size: the AES block size
          @padding: character to pad with
  
          -> padded #str
  
          ..
              from vital.security import aes_pad
              aes_pad("swing")
              # -> 'swing{{{{{{{{{{{{{{{{{{{{{{{{{{{'
          ..