Finding value in nested dictionaries with lists

[mart79]

Of course it doesn't - your instance checks are for dicts, lists and strings and an object of type Foo for example is not one of those things. Where did this problem come from? Is this really the right kind of structure for the data?

This structure was given to me. Hence, I need to work with what I have and search through this structure as it is. Independent of whether it is good or bad. Is there a possibility of reading this part of the dictionary too without restructuring the data?