old_contents: import curses
  import unicodedata
  
  from .line import Line
  from .attribute import ColorAttribute
  
  
  
  class Console:
    def __init__(self, window):
      self.__window = window
      self.__window.keypad(True)
      self.__window.scrollok(True)
      self.__window.clear()
      self.__window.move(0, 0)
  
    def __keep_position(method):
      def wrapper(self, *args, **keyword_args):
        position = self.__window.getyx()
        result = method(self, *args, **keyword_args)
        self.__window.move(*position)
        return result
      return wrapper
  
    @property
    def screen_height(self):
      return self.__window.getmaxyx()[0]
  
    @property
    def screen_width(self):
      return self.__window.getmaxyx()[1]
  
    def get_char(self) -> str:
      return chr(self.__window.getch())
  
    def print_line(self, y, line, clear=True):
      assert 0 <= y < self.screen_height
      assert isinstance(line, Line)
  
      self.__window.move(y, 0)
      if clear:
        self.__window.clrtoeol()
  
      for char in line.normalized:
        assert not unicodedata.category(char.value).startswith("C")
        if self.__window.getyx()[1] + char.width > self.screen_width:
          break
        self.__window.addstr(char.value, char.attr)
  
    @__keep_position
    def erase(self):
      self.__window.erase()
  
    def refresh(self):
      self.__window.refresh()
  
    @__keep_position
    def scroll(self, line=None):
      self.__window.scroll()
      if line != None:
        assert isinstance(line, Line)
        self.print_line(self.screen_height - 1, line)
  
new_contents: import curses
  import unicodedata
  
  from .line import Line
  from .attribute import ColorAttribute
  
  
  
  class Console:
    def __init__(self, window):
      self.__window = window
      self.__window.keypad(True)
      self.__window.scrollok(True)
      self.__window.clear()
      self.__window.move(0, 0)
      self.__window.refresh()
  
    def __keep_position(method):
      def wrapper(self, *args, **keyword_args):
        position = self.__window.getyx()
        result = method(self, *args, **keyword_args)
        self.__window.move(*position)
        return result
      return wrapper
  
    @property
    def screen_height(self):
      return self.__window.getmaxyx()[0]
  
    @property
    def screen_width(self):
      return self.__window.getmaxyx()[1]
  
    def get_char(self) -> str:
      return chr(self.__window.getch())
  
    def print_line(self, y, line, clear=True):
      assert 0 <= y < self.screen_height
      assert isinstance(line, Line)
  
      self.__window.move(y, 0)
      if clear:
        self.__window.clrtoeol()
  
      for char in line.normalized:
        assert not unicodedata.category(char.value).startswith("C")
        if self.__window.getyx()[1] + char.width > self.screen_width:
          break
        self.__window.addstr(char.value, char.attr)
  
    @__keep_position
    def erase(self):
      self.__window.erase()
  
    def refresh(self):
      self.__window.refresh()
  
    @__keep_position
    def scroll(self, line=None):
      self.__window.scroll()
      if line != None:
        assert isinstance(line, Line)
        self.print_line(self.screen_height - 1, line)
  
subject: Refresh screen on initialization of console