Freqently modifies XFCE4 Terminal config to present a different cursor color.

rainbowcursor.py

#!/usr/bin/env python

"""Freqently modifies XFCE4 Terminal config to present a different cursor
color."""

from colorsys import hsv_to_rgb
import ConfigParser
import time


def colorgenerator():
    """Generates rgb color triplets while cycling around hue.

    :return: RGB color
    :rtype: triple of float
    """
    while True:
        for i in range(255):
            i = 3. * i / 255
            yield tuple([255*x for x in hsv_to_rgb(i, 1., 1.)])


if __name__ == "__main__":
    CP = ConfigParser.ConfigParser()
    CP.optionxform = str

    CP.read('/home/peter/.config/xfce4/terminal/terminalrc')

    for color in colorgenerator():
        CP.set('Configuration', 'ColorCursor', '#%02x%02x%02x' % color)
        with open('/home/peter/.config/xfce4/terminal/terminalrc', 'w') as fp:
            CP.write(fp)
        time.sleep(2)