Alberto Miserendino

``` >>> from jsonpointer import set_pointer >>> obj = {'cities': {}} >>> set_pointer(obj, '/cities/NewYork', '0') >>> print(obj) 'cities': {'NewYork': '0'}} >>> set_pointer(obj, '/cities/LosAngeles/population', '4mln') >>> print(obj) --------------------------------------------------------------------------- KeyError: 'LosAngeles' ......