REPL doesn't handle blocks larger than the console window on some terminals

Bug report

Bug description:

On Windows, if the currently edited block does not fit in the console (the lines are too long and there are too many lines), and the cursor is moved around, the REPL's state gets corrupted: lines are overwritten with parts of other lines, parts of the prompt appear in places, the cursor behaviour doesn't match the text around it.

For example, in a small console window, I pressed Up to go back in history to this piece of colorsys:

def yiq_to_rgb(y, i, q):
    # r = y + (0.27*q + 0.41*i) / (0.74*0.41 + 0.27*0.48)
    # b = y + (0.74*q - 0.48*i) / (0.74*0.41 + 0.27*0.48)
    # g = y - (0.30*(r-y) + 0.11*(b-y)) / 0.59

    r = y + 0.9468822170900693*i + 0.6235565819861433*q
    g = y - 0.27478764629897834*i - 0.6356910791873801*q
    b = y - 1.1085450346420322*i + 1.7090069284064666*q

    if r < 0.0:
        r = 0.0
    if g < 0.0:
        g = 0.0
    if b < 0.0:
        b = 0.0
    if r > 1.0:
        r = 1.0
    if g > 1.0:
        g = 1.0
    if b > 1.0:
        b = 1.0
    return (r, g, b)

and then pressed some arrow keys to get:

CPython versions tested on:

CPython main branch

Operating systems tested on:

Windows

Comece reproduzindo a falha de edição da REPL no Windows com uma janela de console pequena demais para o bloco multilinha colorsys e, em seguida, percorra os pontos de entrada do histórico e da edição do cursor da REPL. Execute as interações com as teclas de seta descritas no relatório e verifique se as linhas, os prompts e a posição do cursor permanecem alinhados quando o bloco exceder a janela.