This snippet allow to load JSON file directly to pydantic model.

Requires Pydantic.
Put config folder in your project.
Modify Main model in config.py according to your needs
Run config.py file to generate config.json template
Fill config.json with your key: value pairs.

{
    "some_key1": "some_value1",
    "some_key2": "some_value2",
    "some_key3": [1, 2, 3],
    "some_key4": {
        "sub_key1": "some_sub_value1",
        "sub_key2": "some_sub_value2"
    },
    "some_key5": ""
}

from config import load_config


config = load_config()
print(config)
print(config.some_key1)
print(config.some_key2)
print(config.some_key3)
print(config.some_key4)
print(config.some_key4.sub_key1)

Outputs

some_key1='some_value1' some_key2='some_value2' some_key3=[1, 2, 3] some_key4=Sub(sub_key1='some_sub_value1', sub_key2='some_sub_value2')
some_value1
some_value2
[1, 2, 3]
sub_key1='some_sub_value1' sub_key2='some_sub_value2'
some_sub_value1