w3resource

Python JSON: Create a new JSON file from an existing JSON file


Write a Python program to create a new JSON file from an existing JSON file.

Sample Solution:-

Python Code:

import json

with open('states.json') as f:
  state_data= json.load(f)

for state in state_data['states']:
  del state['area_codes']

with open('new_states.json', 'w') as f:
  json.dump(state_data, f, indent=2)

Output:

new_states.json
{
  "states": [
    {
      "name": "Alabama",
      "abbreviation": "AL"
    },
    {
      "name": "Alaska",
      "abbreviation": "AK"
    },
    {
      "name": "Arizona",
      "abbreviation": "AZ"
    },
    {
      "name": "Arkansas",
      "abbreviation": "AR"
    },
    {
      "name": "California",
      "abbreviation": "CA"
    },
    {
      "name": "Colorado",
      "abbreviation": "CO"
    },
    {
      "name": "Connecticut",
      "abbreviation": "CT"
    },
    {
      "name": "Delaware",
      "abbreviation": "DE"
    },
    {
      "name": "Florida",
      "abbreviation": "FL"
    },
    {
      "name": "Georgia",
      "abbreviation": "GA"
    },
    {
      "name": "Hawaii",
      "abbreviation": "HI"
    },
    {
      "name": "Idaho",
      "abbreviation": "ID"
    },
    {
      "name": "Illinois",
      "abbreviation": "IL"
    },
    {
      "name": "Indiana",
      "abbreviation": "IN"
    },
    {
      "name": "Iowa",
      "abbreviation": "IA"
    },
    {
      "name": "Kansas",
      "abbreviation": "KS"
    },
    {
      "name": "Kentucky",
      "abbreviation": "KY"
    },
    {
      "name": "Louisiana",
      "abbreviation": "LA"
    },
    {
      "name": "Maine",
      "abbreviation": "ME"
    },
    {
      "name": "Maryland",
      "abbreviation": "MD"
    },
    {
      "name": "Massachusetts",
      "abbreviation": "MA"
    },
    {
      "name": "Michigan",
      "abbreviation": "MI"
    },
    {
      "name": "Minnesota",
      "abbreviation": "MN"
    },
    {
      "name": "Mississippi",
      "abbreviation": "MS"
    },
    {
      "name": "Missouri",
      "abbreviation": "MO"
    },
    {
      "name": "Montana",
      "abbreviation": "MT"
    },
    {
      "name": "Nebraska",
      "abbreviation": "NE"
    },
    {
      "name": "Nevada",
      "abbreviation": "NV"
    },
    {
      "name": "New Hampshire",
      "abbreviation": "NH"
    },
    {
      "name": "New Jersey",
      "abbreviation": "NJ"
    },
    {
      "name": "New Mexico",
      "abbreviation": "NM"
    },
    {
      "name": "New York",
      "abbreviation": "NY"
    },
    {
      "name": "North Carolina",
      "abbreviation": "NC"
    },
    {
      "name": "North Dakota",
      "abbreviation": "ND"
    },
    {
      "name": "Ohio",
      "abbreviation": "OH"
    },
    {
      "name": "Oklahoma",
      "abbreviation": "OK"
    },
    {
      "name": "Oregon",
      "abbreviation": "OR"
    },
    {
      "name": "Pennsylvania",
      "abbreviation": "PA"
    },
    {
      "name": "Rhode Island",
      "abbreviation": "RI"
    },
    {
      "name": "South Carolina",
      "abbreviation": "SC"
    },
    {
      "name": "South Dakota",
      "abbreviation": "SD"
    },
    {
      "name": "Tennessee",
      "abbreviation": "TN"
    },
    {
      "name": "Texas",
      "abbreviation": "TX"
    },
    {
      "name": "Utah",
      "abbreviation": "UT"
    },
    {
      "name": "Vermont",
      "abbreviation": "VT"
    },
    {
      "name": "Virginia",
      "abbreviation": "VA"
    },
    {
      "name": "Washington",
      "abbreviation": "WA"
    },
    {
      "name": "West Virginia",
      "abbreviation": "WV"
    },
    {
      "name": "Wisconsin",
      "abbreviation": "WI"
    },
    {
      "name": "Wyoming",
      "abbreviation": "WY"
    }
  ]
}
 

Flowchart:

Flowchart: Create a new JSON file from an existing JSON file.

Python Code Editor:


Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a Python program to convert JSON encoded data into Python objects.
Next: Write a Python program to check whether an instance is complex or not.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Follow us on Facebook and Twitter for latest update.