Python Countdown Timer

Hey guys,
First of all let me tell you somethings about I2C LCD:
1)Enabled I2C in raspberry pi config
2) Run these two commands:

sudo apt-get install i2c-tools

sudo apt-get install python-smbus

4)put that address in I2C_LCD_driver where it says LCD Address(line 52), instead of that "3f" enter your own LCD address

extract it to to home/pi

[jomymatthews]

Good video. How do I get the PI to auto start the timer as soon as the PI starts? Thanks in advance.