Python - Count JSON elements before extracting data

Question

I use an API which gives me a JSON file structured like this:

{

offset: 0,

results: [

{

  source_link: "http://www.example.com/1",

  source_link/_title: "Title example 1",

  source_link/_source: "/1",

  source_link/_text: "Title example 1"

},

{

  source_link: "http://www.example.com/2",

  source_link/_title: "Title example 2",

  source_link/_source: "/2",

  source_link/_text: "Title example 2"

},

...

And I use this code in Python to extract the data I need:

import json

import urllib2



u = urllib2.urlopen('myapiurl')

z = json.load(u)

u.close

link = z['results'][1]['source_link']

title = z['results'][1]['source_link/_title']

The problem is that to use it I have to know the number of the element from which I'm extracting the data. My

results

can have different length every time, so what I want to do is to count the number of elements in

results

at first, so I would be able to set up a loop to extract data from each element.

Answer 1

To check the length of the results key:

len(z["results"])

But if you're just looping around them, a for loop is perfect:

for result in x["results"]:
    print(result["source_link"])

Python - Count JSON elements before extracting data

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