Import data from Statistics Norway to a Pandas dataframe in Python

Statistics Norway has made more than 5000 tables available with a new API and here is a tool that will make it easier to download the data to a Pandas dataframe:
https://gist.github.com/anonymous/e1463d45e4c4e8673bfcfbaf585cdd8c


Basically the tool allows you to:

1. search('cows')
2. Select variables and values for a table in a widget gui: box = select(table_id = '14714')
3. Download the selected table/values in a Pandas dataframe: df = read_box(box)

And some other potentially useful things e.g. get the json query associated with the selection:
 get_json(box) or get the json associated with getting all variables and values: full_json(table_id = '14714').

The coding part was fun, but the process also made me reflect a little. One key lesson, and an issue that I would like to get some input on before rewriting the whole thing is: