I had just said in the previous video that I didn't really want to demonstrate what can happen with certain battery packs when configured that don't automatically turn on when using the "dual-power" supply "feature" on the Raspberry Pi Zero (or Wireless). And then, I did. Argh! So for your viewing enjoyment, watch me muddle through getting it back up again as I encounter some strange behavior in the Python runtime + the rPi (2.7.13). Here's to learning from me, so you it doesn't happen on your own system. Hint: Buy a battery pack that has auto-on sensing.