window.get_wch

get_wch([y, x])
Read a key press and return it as a one-character str.

  y
    Y-coordinate.
  x
    X-coordinate.

Wait until a key is pressed, or raise curses.error if the read is
non-blocking or times out.

In keypad mode function keys and other special keys are returned as
one of the KEY_* constants, an integer.  Otherwise their characters
are returned one at a time.