A python script to take data from google spreadsheets and graph the data fairly easily.
View the crontab for more information on how this script is run, such as auths, etc
it calls out to google docs and pulls the info from the spreadsheet, then parses it.
if there are problems with the data parsing, there is no indication. The script simply fails to produce anything.
The best thing to do in such a case is log in to the server and run the script by hand to see how it fails.