How to show DHT22 stats on HAB panel

@Mando

  1. have you copied the files to the python distribution?
    Please list
ls -l /usr/local/lib/python2.7/dist-packages/
  1. try to execute python from the environment.
/usr/bin/env python2

When this works add the shebang to your script, first line.

#!/usr/bin/env python2.7
import sys
import Adafruit_DHT

sensor = Adafruit_DHT.DHT22
pin = 18

humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)

if humidity is not None and temperature is not None:
    print('{0:0.2f}'.format(temperature))
else:
    print('Failed to get reading. Try again!')
    sys.exit(1)

and execute this, please post the result.
EDIT:removed dot.

sudo -u openhab /opt/openhab2/conf/scripts/hum.py