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https://github.com/litestar-org/polyfactory

Simple and powerful factories for mock data generation
https://github.com/litestar-org/polyfactory
beanie dataclasses hacktoberfest litestar msgspec odmantic polyfactory pydantic pydantic-factories python starlite typeddict
Last synced: about 1 month ago
JSON representation
Simple and powerful factories for mock data generation
Host: GitHub
URL: https://github.com/litestar-org/polyfactory
Owner: litestar-org
License: mit
Created: 2021-11-13T16:39:26.000Z (over 2 years ago)
Default Branch: main
Last Pushed: 2024-04-30T21:00:03.000Z (about 2 months ago)
Last Synced: 2024-05-01T11:47:11.954Z (about 2 months ago)
Topics: beanie, dataclasses, hacktoberfest, litestar, msgspec, odmantic, polyfactory, pydantic, pydantic-factories, python, starlite, typeddict
Language: Python
Homepage: https://polyfactory.litestar.dev/
Size: 5 MB
Stars: 873
Watchers: 15
Forks: 69
Open Issues: 29
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.rst
- License: LICENSE
- Codeowners: .github/CODEOWNERS
Lists

awesome-python-testing - polyfactory - A simple and powerful mock data generation library, based around type hints and supporting dataclasses, typed-dicts, pydantic models, msgspec structs and more. (Object Factories)
my-awesome-stars - litestar-org/polyfactory - Simple and powerful factories for mock data generation (Python)
my-awesome-stars - litestar-org/polyfactory - Simple and powerful factories for mock data generation (Python)
README

        


  

  





| Project   |     | Status                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |

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| CI/CD     |     | [![Publish package](https://github.com/litestar-org/polyfactory/actions/workflows/publish.yml/badge.svg)](https://github.com/litestar-org/polyfactory/actions/workflows/publish.yml) [![ci](https://github.com/litestar-org/polyfactory/actions/workflows/ci.yml/badge.svg)](https://github.com/litestar-org/polyfactory/actions/workflows/ci.yml) [![pages-build-deployment](https://github.com/litestar-org/polyfactory/actions/workflows/pages/pages-build-deployment/badge.svg)](https://github.com/litestar-org/polyfactory/actions/workflows/pages/pages-build-deployment)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |

| Quality   |     | [![Coverage](https://sonarcloud.io/api/project_badges/measure?project=litestar-org_polyfactory&metric=coverage)](https://sonarcloud.io/summary/new_code?id=litestar-org_polyfactory) [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=litestar-org_polyfactory&metric=alert_status)](https://sonarcloud.io/summary/new_code?id=litestar-org_polyfactory) [![Maintainability Rating](https://sonarcloud.io/api/project_badges/measure?project=litestar-org_polyfactory&metric=sqale_rating)](https://sonarcloud.io/summary/new_code?id=litestar-org_polyfactory) [![Reliability Rating](https://sonarcloud.io/api/project_badges/measure?project=litestar-org_polyfactory&metric=reliability_rating)](https://sonarcloud.io/summary/new_code?id=litestar-org_polyfactory) [![Security Rating](https://sonarcloud.io/api/project_badges/measure?project=litestar-org_polyfactory&metric=security_rating)](https://sonarcloud.io/summary/new_code?id=litestar-org_polyfactory)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |

| Package   |     | [![PyPI - Version](https://img.shields.io/pypi/v/polyfactory?labelColor=202235&color=edb641&logo=python&logoColor=edb641)](https://badge.fury.io/py/polyfactory) ![PyPI - Support Python Versions](https://img.shields.io/pypi/pyversions/polyfactory?labelColor=202235&color=edb641&logo=python&logoColor=edb641) ![Pydantic Factories PyPI - Downloads](https://img.shields.io/pypi/dm/pydantic-factories?logo=python&label=Pydantic%20Factories%20downloads&labelColor=202235&color=edb641&logoColor=edb641) ![Polyfactory PyPI - Downloads](https://img.shields.io/pypi/dm/polyfactory?logo=python&label=Polyfactory%20downloads&labelColor=202235&color=edb641&logoColor=edb641)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |

| Community |     | [![Reddit](https://img.shields.io/reddit/subreddit-subscribers/litestarapi?label=r%2FLitestar&logo=reddit&labelColor=202235&color=edb641&logoColor=edb641)](https://reddit.com/r/litestarapi) [![Discord](https://img.shields.io/discord/919193495116337154?labelColor=202235&color=edb641&label=chat%20on%20discord&logo=discord&logoColor=edb641)](https://discord.gg/X3FJqy8d2j) [![Matrix](https://img.shields.io/badge/chat%20on%20Matrix-bridged-202235?labelColor=202235&color=edb641&logo=matrix&logoColor=edb641)](https://matrix.to/#/#litestar:matrix.org) [![Medium](https://img.shields.io/badge/Medium-202235?labelColor=202235&color=edb641&logo=medium&logoColor=edb641)](https://blog.litestar.dev) [![Twitter](https://img.shields.io/twitter/follow/LitestarAPI?labelColor=202235&color=edb641&logo=twitter&logoColor=edb641&style=flat)](https://twitter.com/LitestarAPI) [![Blog](https://img.shields.io/badge/Blog-litestar.dev-202235?logo=blogger&labelColor=202235&color=edb641&logoColor=edb641)](https://blog.litestar.dev)                                                                                                                                                                                                                                                                                                                                                                                                                                                           |

| Meta      |     | [![Litestar Project](https://img.shields.io/badge/Litestar%20Org-%E2%AD%90%20Polyfactory-202235.svg?logo=python&labelColor=202235&color=edb641&logoColor=edb641)](https://github.com/litestar-org/polyfactory) [![types - Mypy](https://img.shields.io/badge/types-Mypy-202235.svg?logo=python&labelColor=202235&color=edb641&logoColor=edb641)](https://github.com/python/mypy) [![License - MIT](https://img.shields.io/badge/license-MIT-202235.svg?logo=python&labelColor=202235&color=edb641&logoColor=edb641)](https://spdx.org/licenses/) [![Litestar Sponsors](https://img.shields.io/badge/Sponsor-%E2%9D%A4-%23edb641.svg?&logo=github&logoColor=edb641&labelColor=202235)](https://github.com/sponsors/litestar-org) [![Sourcery](https://img.shields.io/badge/Pydantic-v2-edb641?labelColor=202235&logoColor=edb641)](https://pydantic.dev) [![linting - Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/charliermarsh/ruff/main/assets/badge/v2.json&labelColor=202235)](https://github.com/astral-sh/ruff) [![code style - Black](https://img.shields.io/badge/code%20style-black-000000.svg?logo=python&labelColor=202235&logoColor=edb641)](https://github.com/psf/black) [![Sourcery](https://img.shields.io/badge/Sourcery-enabled-edb641?labelColor=202235&logoColor=edb641)](https://sourcery.ai) [![All Contributors](https://img.shields.io/github/all-contributors/litestar-org/polyfactory?labelColor=202235&color=edb641&logoColor=edb641)](#contributors-) |



# Polyfactory

Polyfactory is a simple and powerful mock data generation library, based around type

hints and supporting dataclasses, typed-dicts, pydantic models, msgspec structs and more.

Polyfactory part of the Litestar project and as such actively maintained by a community of maintainers and contributors.

## Example

```python

from dataclasses import dataclass

from polyfactory.factories import DataclassFactory

@dataclass

class Person:

    name: str

    age: float

    height: float

    weight: float

class PersonFactory(DataclassFactory[Person]):

    ...

def test_is_person() -> None:

    person_instance = PersonFactory.build()

    assert isinstance(person_instance, Person)

```

That's it - with almost no work, we are able to create a mock data object fitting the `Person` class model definition.

This is possible because of the typing information available on the dataclass, which are used as a

source of truth for data generation.

The factory parses the information stored in the dataclass and generates a dictionary of kwargs that are passed to

`Person`.

## Documentation

Usage and API reference documentation is available on https://polyfactory.litestar.dev/.

## Installation

```shell

pip install polyfactory

```

## Relation to Pydantic-Factories

Prior to version 2, this library was known as [pydantic-factories](https://pypi.org/project/pydantic-factories/), a name

under which it gained quite a bit of popularity.

A main motivator for the 2.0 release was that we wanted to support more than just Pydantic models, something which also

required a change to its core architecture. As this library would no longer be directly tied to Pydantic, `polyfactory`

was chosen as its new name to reflect its capabilities; It can generate mock data for dataclasses, typed-dicts,

Pydantic, odmantic, and beanie ODM models, as well as custom factories.

## Contributing

This library is a community driven open source project. We welcome and encourage contributions. Please check out the

GitHub issues, read the contribution guide (at the repository's root), and you're always welcome

to [join our discord server](https://discord.gg/F4jPQzHpBU).

## Contributors ✨

Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/docs/en/emoji-key)):

  

    

      
_{Na'aman Hirschfeld}
🚧 🚇 ⚠️ 💻 📖

      
_{Jacob Coffee}
🚧 📖 ⚠️

      
_{Janek Nouvertné}
🚧 📖 ⚠️ 💻

      
_{Peter Schutt}
🚧 ⚠️ 💻 📖

      
_{Marek Czaplicki}
💻 ⚠️

      
_{Piotr Przybyło}
💻

      
_sygutss
🐛 💻

    

    

      
_chrisbeardy
📖

      
_guacs
💻 🚇 📖 ⚠️ 🚧

      
_Vadim
💻

      
_Simske
💻

      
_{Sondre Lillebø Gundersen}
💻

      
_{Mateusz Ciszczoń}
💻

      
_{Pedro Bernardes}
💻

    

    

      
_{Martin Roy}
💻

      
_{Matthew Aylward}
💻

      
_{Elton H.Y. Chou}
💻

      
_Thang
💻

      
_Daan
💻

      
_Lyz
💻

      
_{Thorin Schiffer}
💻

    

    

      
_Iipin
💻

      
_avihai-yosef
💻

      
_anthonyh209
💻

      
_{Roman Reznikov}
💻

      
_gigelu
💻

      
_{Rodrigo Medina}
💻

      
_{Gerrit Egnew}
💻

    

    

      
_danielkatzan
📖

      
_{Abdulhaq Emhemmed}
💻

      
_klimantje
💻

      
_{Tom Crasset}
💻

      
_cătălin
💻

      
_{Andrew Truong}
💻 📖

      
_Anthony
💻 📖 ⚠️

    

    

      
_{Jonathan Liuti}
💻 📖 ⚠️

      
_{Julio Olivera}
💻 ⚠️

      
_{Benoît Godard}
💻 📖 ⚠️

      
_{Henry Sorsky}
🚇

      
_{Kim Minki}
📖

      
_{Tim Joseph Dumol}
📖

      
_jeffry
💻

    

  

This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification.

Contributions of any kind welcome!