It seems staring October 9th, 2015, openweathermap.org requires API key for access, therefore returning an error:

requests.exceptions.HTTPError: 401 Client Error: Unauthorized for url:https://api.openweathermap.org/data/2.5/weather?zip=90210,us&appid=

Perhttps://openweathermap.org/faq#error401:
"Starting from 9 October 2015 our API requires a valid APPID for access. Note that this does not mean that our API is subscription-only now - please take a minute to register a FREE account to receive a key."

The location, sun, and events services still work when testing.

Perhaps make a note during screencast to indicate try the other APIs other than weather or take it out completely in example code?