code: def iter_delimiter(self, byte_size=8192):
      
      partial = u''
      while True:
        read_chars = self.read(byte_size)
        if not read_chars: break
        partial += read_chars
        lines = partial.split(self.delimiter)
        partial = lines.pop()
  
        for line in lines:
          yield line + self.delimiter
  
      if partial:
        yield partial
docs: Generalization of the default iter file delimited by '\n'.
      Note:
        The newline string can be arbitrarily long; it need not be restricted to a
        single character. You can also set the read size and control whether or not
        the newline string is left on the end of the iterated lines.  Setting
        newline to '\0' is particularly good for use with an input file created with
        something like "os.popen('find -print0')".
  
      Args:
        byte_size (integer): Number of bytes to be read at each time.