window.addch

addch([y, x,] ch, [attr=_curses.A_NORMAL])
Paint the character.

  y
    Y-coordinate.
  x
    X-coordinate.
  ch
    Character to add.
  attr
    Attributes for the character.

Paint character ch at (y, x) with attributes attr,
overwriting any character previously painted at that location.
By default, the character position and attributes are the
current settings for the window object.