code: def readline(self, continuation=False):
          
          prompt = (self.secondary_prompt_string if continuation else
                    self.primary_prompt_string)
          try:
              line = raw_input(prompt)
              while line.endswith("\\"):
                  line = line[:-1] + raw_input(self.secondary_prompt_string)
          except EOFError:
              raise SystemExit()
          else:
              return line
docs: Read a line from the terminal.
  
          A backslash followed by a <newline> is interpreted as a line
          continuation. The backslash and <newline>s are removed before return.
  
          For example::
  
              $ uname \
              > -m
              x86_64
  
          :param continuation:
              True if the line is a continuation. Defaults to False.