pi@raspberrypi ~ $ sudo python
Python 2.7.3 (default, Mar 18 2014, 05:13:23)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import RPi.GPIO as GPIO
>>> GPIO.setup(22, GPIO.OUT)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
RuntimeError: Please set pin numbering mode using GPIO.setmode(GPIO.BOARD) or GPIO.setmode(GPIO.BCM)
>>> GPIO.setmode(GPIO.BOARD)
>>> GPIO.setup(22, GPIO.OUT)
>>> GPIO.output(22, True)
>>> GPIO.setup(15, GPIO.OUT)
>>> GPIO.output(15, False)
>>>