kunsis-dotfiles/.config/i3pystatus/rfkill-wifi.py

#!/usr/bin/python

from subprocess import check_output


devices = {}

for line in check_output(['rfkill', '-rn']).decode('UTF-8').splitlines():
    nr, identifier, device, soft, hard = line.split(' ')
    devices[device] = {
        'soft': True if soft == 'blocked' else False,
        'hard': True if hard == 'blocked' else False,
    }

wifi_dev = None
for device in devices:
    if device.startswith('phy'):
        wifi_dev = device
        break

if not wifi_dev:
    print('No WLAN?')
else:
    if devices[wifi_dev]['hard']:
        wlan = '#FF0000'
    elif devices[wifi_dev]['soft']:
        wlan = '#FF9900'
    else:
        wlan = '#00FF00'

    print(f'<span color="{wlan}">WLAN</span>')