Issues iterating through JSON list in Python?

Question

I have a file with JSON data in it, like so:

{
    "Results": [
            {"Id": "001",
            "Name": "Bob",
            "Items": {
                "Cars": "1",
                "Books": "3",
                "Phones": "1"}
            },

            {"Id": "002",
            "Name": "Tom",
            "Items": {
                "Cars": "1",
                "Books": "3",
                "Phones": "1"}
            },

            {"Id": "003",
            "Name": "Sally",
            "Items": {
                "Cars": "1",
                "Books": "3",
                "Phones": "1"}
            }]
}

I can not figure out how to properly loop through the JSON. I would like to loop through the data and get a Name with the Cars for each member in the dataset. How can I accomplish this?

import json

with open('data.json') as data_file:
    data = json.load(data_file)

print data["Results"][0]["Name"] # Gives me a name for the first entry
print data["Results"][0]["Items"]["Cars"] # Gives me the number of cars for the first entry

I have tried looping through them with:

for i in data["Results"]:
print data["Results"][i]["Name"]    

But recieve an error: TypeError: list indices must be integers, not dict

Answer 1

You are assuming that i is an index, but it is a dictionary, use:

for item in data["Results"]:
    print item["Name"]    

Quote from the for Statements:

The for statement in Python differs a bit from what you may be used to in C or Pascal. Rather than always iterating over an arithmetic progression of numbers (like in Pascal), or giving the user the ability to define both the iteration step and halting condition (as C), Python’s for statement iterates over the items of any sequence (a list or a string), in the order that they appear in the sequence.