from PIL import Image

if __name__ == "__main__":
	w, h, zoom = 800,600,1
	bitmap = Image.new("RGB", (w, h), "white")
	pix = bitmap.load()

	cX, cY = -0.7, 0.27015
	moveX, moveY = 0.0, 0.0
	maxIter = 255

	for x in range(w):
		for y in range(h):
			zx = 1.5*(x - w/2)/(0.5*zoom*w) + moveX
			zy = 1.0*(y - h/2)/(0.5*zoom*h) + moveY
			i = maxIter
			while zx*zx + zy*zy < 4 and i > 1:
				tmp = zx*zx - zy*zy + cX
				zy,zx = 2.0*zx*zy + cY, tmp
				i -= 1
			# convert byte to RGB (3 bytes), kinda magic to get nice colors
			pix[x][y] = (i << 21) + (i << 10) + i*8

	bitmap.show()