Using my snaps program (mostly based on example from VideoCapture) and using www.reddit.com/r/pics/comments/1s3rm5/five_months_ago_i_created_a_program_to_silently/ as an inspiration, I wrote this. https://github.com/tspilk/python_webcam_snaps
Use it however you want. I have it snapping a photo of me every time I unlock my machine with Task Scheduler in Windows 7 to look back in a year or so at all the derpy faces I make.