Writing multiple lists into JSON file

Asked Dec 07 '18 at 22:47

Active Dec 07 '18 at 22:47

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I'm able to store a single list into a json file to be used later. How would you store multiple lists into a json file. Let's say that I wanted to add the username to the file and the username + '@gmail.com" as another list into the same file. How would you access these two lists from the json file later?

import json
username = johnsmith91
storelist = []
storelist.append(username)
with open('username.json', 'a') as outfile:
    json.dump(storelist, outfile)

asked Dec 07 '18 at 22:47

Alanna Mueller

1

maybe an array of arrays? – blurfus Dec 07 '18 at 22:49
Possible duplicate of [Convert array of arrays to json in Python](https://stackoverflow.com/questions/52776092/convert-array-of-arrays-to-json-in-python) – blurfus Dec 07 '18 at 22:51
You should probably be storing a list of dictionaries rather than multiple lists. E.g. `[{"username": "johnsmith91", "email": "johnsmith91@gmail.com"}, ...]` – Barmar Dec 08 '18 at 00:24
you are right @barmar thanks. – Alanna Mueller Dec 08 '18 at 17:42

Writing multiple lists into JSON file

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