Since the launch of my new podcast, I've been trying to keep track of stats on podcast downloads and subscribers. FeedPress has been my feed tracker of choice recently, and seems to work very smoothly (even if they only update stats once a day).
I'm also a big fan of Panic's Status Board iPad app for keeping track of all sorts of stats -- so much so that I'm considering getting a dedicated (old, used) iPad, just to hook up to a big monitor and display stats all day.
These are obviously two great tastes that taste great together, as FeedPress already supplies a JSON file that you can load into Status Board to see 7 days worth of subscriber data for a single feed. But what if you want to see more days? Or more than one feed? That's where my Python script comes in.