Warlock 🧙‍♀️

Create self-validating Python objects using JSON schema.

GitHub commits since latest release (branch)

Installation

pip install warlock

Usage

Create your schema

>>> schema = {
    'name': 'Country',
    'properties': {
        'name': {'type': 'string'},
        'abbreviation': {'type': 'string'},
        'population': {'type': 'integer'},
    },
    'additionalProperties': False,
}

Create a model

>>> import warlock
>>> Country = warlock.model_factory(schema)

Create an object using your model

>>> sweden = Country(name='Sweden', abbreviation='SE')

Let the object validate itself

>>> sweden.name = 5
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "warlock/core.py", line 53, in __setattr__
    raise InvalidOperation(msg)
warlock.core.InvalidOperation: Unable to set 'name' to '5'

>>> sweden.overlord = 'Bears'
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "warlock/core.py", line 53, in __setattr__
    raise InvalidOperation(msg)
warlock.core.InvalidOperation: Unable to set 'overlord' to 'Bears'

Generate a JSON Patch document to track changes

>>> sweden.population=9453000
>>> sweden.patch
'[{"path": "/population", "value": 9453000, "op": "add"}]'

Release files for warlock 2.1.0

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for warlock 2.1.0
File	Size	Uploaded
warlock-2.1.0.tar.gz	8.0 kB	May 30, 2025	Details

Built distribution (wheel)

Table of built distributions (wheels) for warlock 2.1.0
File	Interpreter	ABI	Platform	Reset
warlock-2.1.0-py3-none-any.whl 10.3 kB May 30, 2025	Python 3	none	any	Details

Total release size: 18.3 kB

Release files / warlock-2.1.0.tar.gz

Download URL	warlock-2.1.0.tar.gz
Size	8.0 kB
Tags	Source
SHA-256 checksum How to use checksums	`82319ba017341e7fcdc81efc2be9dd2f8237a0da07c71476b5425651b317b1c9`
BLAKE2b-256 checksum How to use checksums	`29c23ba4daeddd47f1cfdbc703048cbee27bcbc50535261a2bbe36412565f3c9`
Upload date	May 30, 2025
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/6.1.0 CPython/3.9.22`

Release files / warlock-2.1.0-py3-none-any.whl

Download URL	warlock-2.1.0-py3-none-any.whl
Size	10.3 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`55cb5ad3399083724f1bfbfef4234a11fbacfc78bf2b9c4d0c18b6e203cf78fe`
BLAKE2b-256 checksum How to use checksums	`534b8b3a3ae43afd4f7e4eebd86b53924d5271f84857ca38161ca502d0891caa`
Upload date	May 30, 2025
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`twine/6.1.0 CPython/3.9.22`