code: def btox(data, sep=''):
      
      # translate the blob into hex
      hex_str = binascii.hexlify(data)
  
      # inject the separator if it was given
      if sep:
          hex_str = sep.join(hex_str[i:i+2] for i in range(0, len(hex_str), 2))
  
      # return the result
      return hex_str
docs: Return the hex encoding of a blob (string).