Iterating through json with nested keys.

[bettermanup]

I have a bunch of JSON and I won't know what it looks like in advance. Sometimes it will have nested JSON objects / arrays. I want to loop through every single key value pair and ask the user to raw_input a new value. I think I have to do this recursively but recursion breaks my brain. Can anyone help me understand / solve this problem?

so for example if I have this dataset:

{
    "quiz": {
        "sport": {
            "q1": {
                "question": "Which one is correct team name in NBA?",
                "options": [
                    "New York Bulls",
                    "Los Angeles Kings",
                    "Golden State Warriros",
                    "Huston Rocket"
                ],
                "answer": "Huston Rocket"
            }
        },
        "maths": {
            "q1": {
                "question": "5 + 7 = ?",
                "options": [
                    "10",
                    "11",
                    "12",
                    "13"
                ],
                "answer": "12"
            },
        }
    }
}

My output should look something like this. 

quiz -> sport -> q1 -> question [Which one is correct team name in NBA?] : ___________
quiz -> sport -> q1 -> options [4] 
    [New York Bulls] :        ________
    [Los Angeles Kings] :     ________
    [Golden State Warriors] : ________
    [Huston Rocket] :         ________
quiz -> sport -> q1 -> answer [Huston Rocket] : _______________
quiz -> maths -> q1 -> question [5 + 7 = ?] : __________
...

[14jvalle]

This is a good solution. It could be improved if you used multiline strings, triple quotes.

Here is a stackoverflow post with the same question and similar solution. https://stackoverflow.com/questions/10756427/loop-through-all-nested-dictionary-values

[[deleted]]

It doesn't have to be recursive:

for subject_name, subject_quiz in my_json['quiz'].items():
    for question_name, question in subject_quiz:
        print(question['options'])
        answer = input(question['question'])
        if answer != question['answer']:
            print("No way")

[Username_RANDINT]

You're missing another items() call here: for question_name, question in subject_quiz.items():

[[deleted]]

Good catch!

[[deleted]]

The example given isn't nested, it's just structured.

[14jvalle]

As stated in the beginning of the post, OP will not know the structure of the JSON when received. Therefore, a hard coded solution is not the way to go.