Retreive JSON Keys In Python

My goal is to iterate through every element in classes and add the value of class in classes into a new list. JSON Structure: { 'images': [ { 'classifiers': [

Solution 1:

The first issue is that classifiers is also a list, so you need an additional index to get at classes. This will work:

for item in json_data['images'][0]['classifiers'][0]['classes']:

Second, you want the result as a set not a list, so you can do: return set(lst). Note that sets are unordered, so don't expect the ordering of items to match that of the list.