How to load json file?

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9 Answers

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 Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.  ,To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course. And to begin with your Machine Learning Journey, join the Machine Learning – Basic Level Course,It’s pretty easy to load a JSON object in Python. Python has a built-in package called json, which can be used to work with JSON data. It’s done by using the json module, which provides us with a lot of methods which among loads() and load() methods are gonna help us to read the JSON file.

Syntax:

json.load(file object)
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Example: Python read JSON file,You can use json.load() method to read a file containing JSON object.,Suppose, you have a file named person.json which contains a JSON object.

In Python, JSON exists as a string. For example:

p = '{"name": "Bob", "languages": ["Python", "Java"]}'
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We will use the string with JSON format to create a Python dictionary that we can access, work with, and modify.,Now you know how to create a Python dictionary from a string with JSON format. ,How JSON and Python Dictionaries work together in Python.

{
   "size": "medium",
   "price": 15.67,
   "toppings": ["mushrooms", "pepperoni", "basil"],
   "extra_cheese": false,
   "delivery": true,
   "client": {
      "name": "Jane Doe",
      "phone": null,
      "email": "janedoe@email.com"
   }
}
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Reading JSON from a File,Writing JSON to a File,In this article, we'll be parsing, reading and writing JSON data to a file in Python.

The built-in json package has the magic code that transforms your Python dict object in to the serialized JSON string.

import json

data = {}
data['people'] = []
data['people'].append({
   'name': 'Scott',
   'website': 'stackabuse.com',
   'from': 'Nebraska'
})
data['people'].append({
   'name': 'Larry',
   'website': 'google.com',
   'from': 'Michigan'
})
data['people'].append({
   'name': 'Tim',
   'website': 'apple.com',
   'from': 'Alabama'
})

with open('data.txt', 'w') as outfile:
   json.dump(data, outfile)
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Transform the JSON file into a JavaScript by creating a function that returns the data as JavaScript object. Then you can load it with <script> tag and call the function to get the data you want.,I did this for my cordova app, like I created a new javascript file for the JSON and pasted the JSON data into String.raw then parse it with JSON.parse,Then load it with pure js as

$.getJSON is asynchronous so you should do:

$.getJSON("test.json", function(json) {
   console.log(json); // this will show the info it in firebug console
});
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Import the json module.,Open test.json using the open() built-in function.,Line 1: Imported json module.

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A JSON string can be stored in its own file, which is basically just a text file with an extension of .json, and a MIME type of application/json.,The URL to make the request to — this is the URL of the JSON file that we stored earlier.,To start with, we store the URL of the JSON we want to retrieve in a variable. Add the following at the bottom of your JavaScript code: let requestURL = 'https://mdn.github.io/learning-area/javascript/oojs/json/superheroes.json';

{
   "squadName": "Super hero squad",
   "homeTown": "Metro City",
   "formed": 2016,
   "secretBase": "Super tower",
   "active": true,
   "members": [{
         "name": "Molecule Man",
         "age": 29,
         "secretIdentity": "Dan Jukes",
         "powers": [
            "Radiation resistance",
            "Turning tiny",
            "Radiation blast"
         ]
      },
      {
         "name": "Madame Uppercut",
         "age": 39,
         "secretIdentity": "Jane Wilson",
         "powers": [
            "Million tonne punch",
            "Damage resistance",
            "Superhuman reflexes"
         ]
      },
      {
         "name": "Eternal Flame",
         "age": 1000000,
         "secretIdentity": "Unknown",
         "powers": [
            "Immortality",
            "Heat Immunity",
            "Inferno",
            "Teleportation",
            "Interdimensional travel"
         ]
      }
   ]
}
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Applies a function to the JSON string before parsing.

$ npm install load - json - file
const loadJsonFile = require('load-json-file');
(async () => {
         console.log(await loadJsonFile('foo.json')); //=> {foo: true}})();
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How to use JSON with python?The way this works is by first having a json file on your disk.The program then loads the file for parsing, parses it and then you can use it. ,In python read json file is very easy. In this article we will explain how to read a JSON file from the disk and use it in python. ,Create a file on your disk (name it: example.json). The python program below reads the json file and uses the values directly.

1
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