code: def list_line(self, line):
          
          
          if len(line) == 0:
              return
          
          self.stream.write(str(line[0]))
          
          for item in line[1:]:
              self.stream.write("\t")
              self.stream.write(str(item))
          
          self.stream.write("\n")
docs: Write the given iterable of values (line) to the file as items on the 
          same line. Any argument that stringifies to a string legal as a TSV data
          item can be written.
          
          Does not copy the line or build a big string in memory.