Listing 1. Using the RPi.GPIO Module

import RPi.GPIO as GPIO          # import module
GPIO.setmode(GPIO.BOARD)         # use board pin numbering
GPIO.setup(0, GPIO.IN)           # set ch0 as input
GPIO.setup(1, GPIO.OUT)          # set ch1 as output
var1=GPIO.input(0)                       # read ch0
GPIO.output(1, GPIO.HIGH)        # take ch1 to high state
GPIO.cleanup()                           # release GPIO.