Can't seem to run my crontab file on my chromeos chroot

Question

I have written a python script that will change my desktop wallpaper on my Lxde crouton shell, that seems to run just fine:

import os
from time import localtime
from pathlib import Path

wp = Path("/home/lucasmccallums/Desktop/projects/wallpaper_transitions")


hour = localtime().tm_hour

if (hour < 6) or (hour >= 21):
    os.system("pcmanfm --set-wallpaper=" + str(wp / "night.png"))

elif (hour >= 14):
    os.system("pcmanfm --set-wallpaper=" + str(wp / "afternoon.png"))

else:
    os.system("pcmanfm --set-wallpaper=" + str(wp / "morning.png"))

However when I try to run it through crontab as */1 * * * * /usr/bin/python3 /home/lucasmccallums/Desktop/projects/wallpaper_transitions/desktopdemo.py It seemingly installs fine crontab: installing new crontab However it still doesn't seem to work. I try to use the command /etc/init.d/cron start But am faced with
cron: can't open or create /var/run/crond.pid: Permission denied

I shall keep updating as I try to figure this out but any help will be much appreciated, thank you!

Answer 1

On Crontab

0 6,14,21 * * */usr/bin/somedirectory/py.....