notcurses/python/notcurses-pydemo

#!/usr/bin/python3

import locale
from notcurses import notcurses

def demo():
    nc = notcurses.Notcurses()
    c = notcurses.Cell(nc.stdplane(), ord(' '))
    c.setBgRGB(0x80, 0xc0, 0x80)
    nc.stdplane().setBaseCell(c)
    dims = nc.stdplane().getDimensions()
    r = 0x80
    g = 0x80
    b = 0x80
    for y in range(dims[0]):
        for x in range(dims[1]):
            nc.stdplane().setFgRGB(r, g, b)
            nc.stdplane().setBgRGB(b, r, g)
            nc.stdplane().putSimpleYX(y, x, ord('X'))
            b = b + 2
            if b == 256:
                b = 0
                g = g + 2
                if g == 256:
                    g = 0
                    r = r + 2
    nc.render()


locale.setlocale(locale.LC_ALL, "")
demo()