old_contents: #!/usr/bin/python
  
  # Copyright (c) 2014 Adafruit Industries
  # Author: Tony DiCola
  
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  
  # The above copyright notice and this permission notice shall be included in all
  # copies or substantial portions of the Software.
  
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  # SOFTWARE.
  import Adafruit_DHT
  
  # Sensor should be set to Adafruit_DHT.DHT11,
  # Adafruit_DHT.DHT22, or Adafruit_DHT.AM2302.
  sensor = Adafruit_DHT.DHT22
  
  # Example using a Beaglebone Black with DHT sensor
  # connected to pin P8_11.
  pin = 'P8_11'
  
  # Example using a Raspberry Pi with DHT sensor
  # connected to pin 23.
  #pin = 23
  
  # Try to grab a sensor reading.  Use the read_retry method which will retry up
  # to 15 times to get a sensor reading (waiting 2 seconds between each retry).
  humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)
  
  # Note that sometimes you won't get a reading and
  # the results will be null (because Linux can't
  # guarantee the timing of calls to read the sensor).  
  # If this happens try again!
  if humidity is not None and temperature is not None:
  	print 'Temp={0:0.1f}*C  Humidity={1:0.1f}%'.format(temperature, humidity)
  else:
  	print 'Failed to get reading. Try again!'
  
new_contents: #!/usr/bin/python
  
  # Copyright (c) 2014 Adafruit Industries
  # Author: Tony DiCola
  
  # Permission is hereby granted, free of charge, to any person obtaining a copy
  # of this software and associated documentation files (the "Software"), to deal
  # in the Software without restriction, including without limitation the rights
  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  # copies of the Software, and to permit persons to whom the Software is
  # furnished to do so, subject to the following conditions:
  
  # The above copyright notice and this permission notice shall be included in all
  # copies or substantial portions of the Software.
  
  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  # SOFTWARE.
  import Adafruit_DHT
  
  # Sensor should be set to Adafruit_DHT.DHT11,
  # Adafruit_DHT.DHT22, or Adafruit_DHT.AM2302.
  sensor = Adafruit_DHT.DHT22
  
  # Example using a Beaglebone Black with DHT sensor
  # connected to pin P8_11.
  pin = 'P8_11'
  
  # Example using a Raspberry Pi with DHT sensor
  # connected to GPIO23.
  #pin = 23
  
  # Try to grab a sensor reading.  Use the read_retry method which will retry up
  # to 15 times to get a sensor reading (waiting 2 seconds between each retry).
  humidity, temperature = Adafruit_DHT.read_retry(sensor, pin)
  
  # Note that sometimes you won't get a reading and
  # the results will be null (because Linux can't
  # guarantee the timing of calls to read the sensor).  
  # If this happens try again!
  if humidity is not None and temperature is not None:
  	print 'Temp={0:0.1f}*C  Humidity={1:0.1f}%'.format(temperature, humidity)
  else:
  	print 'Failed to get reading. Try again!'
  
subject: Clarify pin number for Raspberry Pi