Are there any limits on using Quandl?

Apart from what you see in the lectures and exercises in Section 10, we are currently advised by Quandl to always start our code with

quandl.ApiConfig.api_key = "YOUR_KEY_HERE"

Furthermore, you have a limit of requests
you can make with your key per day - currently, this limit is 50.

Keep this information in mind while working
with data from Quandl.