Disable LEDs for all connected Razer devices using openrazer

raz_off.py

#! /usr/bin/env nix-shell
#! nix-shell -p "python37.withPackages(ps: with ps; [ openrazer ])" -p openrazer-daemon -i python3

from openrazer.client import DeviceManager
from openrazer.client import constants as razer_constants

device_manager = DeviceManager()
device_manager.sync_effects = False
print(f"Found {len(device_manager.devices)} devices")

for device in device_manager.devices:
    print(f"Setting FX for {device.name} to none")
    device.fx.none()

# We can accomplish the same thing by setting the brightness to zero
#     print(f"Turning off LEDs for {device.name}")
#     device.brightness = 0

# If sync_effects is enabled, we only need to turn off one device, and the rest will follow
# print(f"Turning off LEDs for all connected devices")
# device_manager.devices[0].brightness = 0
# or
# device_manager.devices[0].fx.none()