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Python create JSON file from dict

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You can create JSON files from dict using a built-in module json. We need to use json.dump() method to do this.

json.dump(developer, write_file, indent=4)

Use the indent parameter to prettyPrint your JSON data. You can also use sort_keys to sort dictionary keys while writing it in the JSON file.

Python creates a JSON file from a dictionary example

Simple example code.

import json

a = {'name': 'John Doe', 'age': 24}
js = json.dumps(a)

# Open new json file if not exist it will create
fp = open('test.json', 'a')

# write to json file

# close the connection


Python create JSON file from dict

Or use this code json.dump instead of json.dumps. This is an easier way to do it.

json.dumps is mainly used to display dictionaries in a json format with the type of string. While dump is used for saving to file. Using this to save to a file is obsolete.

import json

a = {'name': 'John Doe', 'age': 24}

with open("sample.json", "w") as outfile:
json.dump(a, outfile)

Do comment if you have any doubts or suggestions on this Python JSON file topic.

Note: IDE: PyCharm 2021.3.3 (Community Edition)

Windows 10

Python 3.10.1

All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.

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