How to save data into JSON to specified keys? For Python 3.7

Question

I have little script on python and I want receive results into JSON file.

I prepared already JSON keys with names of tests.

It looks like this one:

{
    "key1" : ""
    "key2" : ""
    "key3" : ""

}

And now I want to save results (usual str (after if else tests)) as value into specified key.

How can I perform it?

Thank you!

EDIT: not create dictionary, not take FROM JSON. Only write to specified key.

Like (by script, of course):

"Write 'my_str' to My_json[My_key]"

Is the JSON you pasted in your question being read into the python program, or is it a dictionary that you want to convert to JSON? — AJ_
– AJ_, Commented Jun 21, 2020 at 15:17
We would need to see your values and how you get them to be able to help you insert them into json — tygzy
– tygzy, Commented Jun 21, 2020 at 15:18

un random · Accepted Answer · 2020-06-21 15:22:39Z

1

to save dictionary into a json format you should use json lib which allows you to dump a dictionary in a json file and convert convert a .json into a python dictionary

import json

my_dict = {'key1':'', 'key2':'', 'key3':''}

def dump_data(data):
    with open('file.json', 'w') as file:
        json.dump(data, file)

def read_data(file_name):
    with open(file_name, 'r') as file:
        return json.load(file)

dump_data(my_dict)
my_dict2 = read_data('file.json')

answered Jun 21, 2020 at 15:22

un random

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3 Comments

Vas23Vewe Over a year ago

Keys already exist. I want to add values to existed keys.

un random Over a year ago

my_dict = read_data('file.json') for key, value in zip(my_dict.keys(), your_values):      my_dict[key] = value  dump_data(my_dict)

Vas23Vewe Over a year ago

Read - to take data FROM JSON, I want to add data TO JSON

Alex Lucchesi · Accepted Answer · 2020-06-21 15:24:30Z

1

You can import json, create a dictionary, and use:

    json_var = json.dumps(dict_var)

To transform it in json. See Python JSON.

answered Jun 21, 2020 at 15:24

Alex Lucchesi

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