$sudo apt-get update
$sudo apt-get install python-dev
$wget http://dl.linux-sunxi.org/users/tom/pySUNXI-0.1.12.tar.gz
$tar zxf pySUNXI-0.1.12.tar.gz
$sudo python setup.py install

Using the PD0 and VCC-5V for test

    #!/usr/bin/env python

    import SUNXI_GPIO as GPIO
    import time

    RED_LED = GPIO.PD0

    GPIO.init()
    GPIO.setcfg(RED_LED, GPIO.OUT)

    while True:
            GPIO.output(RED_LED, GPIO.HIGH)
            time.sleep(1)
            GPIO.output(RED_LED, GPIO.LOW)
            time.sleep(1)

    $chmod +x blink.py
    $sudo ./blink.py

The red led is blinking in cycle time.