Python: JSON Basics

Learn from the basics about JSON data. We will create JSON data, add element, save it to a JSON file and view json on a Firefox browser. I’m currently using Windows 10 and writing the codes on Microsoft Studio Code app.

Create a JSON data:

import json
data = {}
data['name'] = 'Aprilyn'
data['gender'] = 'female'

print(data)

Result:
{'name': 'Aprilyn', 'gender': 'female'}

Adding element on JSON:

data.update({'age':21})
print(data)
{'name': 'Aprilyn', 'gender': 'female', 'age': 21}

Saving data to Json file:

import json

data = {}
data['name'] = 'Aprilyn'
data['gender'] = 'female'
data['age'] = 21

filename = 'd:/json_sample_data.json'

with open(filename, 'w') as outfile:
    json.dump(data, outfile)

This code will save data on drive D of my computer. You can open the json using your internet browser like Firefox. You can see something like this:

{'name': 'Aprilyn', 'gender': 'female', 'age': 21}

This is a raw view of json. If you want to see it in Json format, we have to install addons on firefox. Please open this link using firefox: Jsonview addons

This is a raw view of JSON. If you want to see it in JSONformat, we have to install add-ons on Firefox. Please open this link using Firefox browser:

Jsonview addons

View JSON in a reading format

Activate the add-ons and restart your Firefox by closing and reopening it again. Then open the json file again and you should see something like this.

Now, I put all the codes together:

import json

def create_data():
    data = {}
    data['name'] = 'Aprilyn'
    data['gender'] = 'female'

    #data['age'] = 21
    data.update({'age':21})

    print(data)
    return data

def save_json(data)
    filename = 'd:/json_sample_data.json'
    with open(filename, 'w') as outfile:
        json.dump(data, outfile)

if __name__ == "__main__":
    data = create_data()
    save_json(data)