Lesson 9
No Object is an Island
Chapter 6: JSON files
Writing to a JSON file
Conversely, you can also easily write a Python object to a JSON string. The fancy term is serialisation (converting a data object into a string representation, usually for storage or transmission).
To write your data into a JSON file, use json.dump(). The following code serialises data to JSON format and saves it in a file called output.json.
import json
data = {"course": "Introduction to Machine Learning", "term": 1}
with open("output.json", "w") as jsonfile:
json.dump(data, jsonfile)
To write your data to a string (and do something else with it later), use json.dumps().
json_string = json.dumps(data)
print(json_string) # {"course": "Introduction to Machine Learning", "term": 1}