pycheckey 0.2

Ensure nested dictionary structure.

PyChecKey

Ever have JSON or a large dictionary that you want to validate before you jump deeper into it? PyChecKey allows you to check a dictionary-like object against a defined structure.

This works with Python 3.5+.

KeyEnsurer

A KeyEnsurer allows checking against a dictionary-like structure.

from pycheckey import KeyEnsurer


data = {
    "key1": 4,
    "key2": {
        "innerKey": "hi"
    }
}

ensurer = KeyEnsurer(data=data, required_keys=['key1', 'key2.innerKey', 'key3'])

ensurer.validate()  # Will return false because key3 does not exist!
print(ensurer.missing)  # ['key3']

ensurer.key_exists(data, 'key2.inner')  # Returns true because data[key2][inner] exists