'Show the prompt-'

def _prompt(self):

    iterl = self.textbuffer.get_end_iter()
    self.textbuffer.insert(iterl, (self.prompt_text + '>    '))
    self.scroll_to_mark(self.textbuffer.get_insert(), 0)
    iterl = self.textbuffer.get_end_iter()
    self.textbuffer.place_cursor(iterl)
    self.cursorLimit = self.textbuffer.get_property('cursor-position')
    self.user_started = self.textbuffer.create_mark('user-input', iterl, True)
