pydantic-duality

Automatically and lazily generate three versions of your pydantic models: one with Extra.forbid, one with Extra.ignore, and one with all fields optional

Installation

pip install pydantic-duality

Quickstart

Given the following models:

from pydantic_duality import DualBaseModel


class User(DualBaseModel):
    id: UUID
    name: str

class Auth(DualBaseModel):
    some_field: str
    user: User

Using pydantic-duality is roughly equivalent to making all of the following models by hand:

from pydantic import BaseModel

# Equivalent to User and User.__request__
class UserRequest(BaseModel, extra=Extra.forbid):
    id: UUID
    name: str

# Rougly equivalent to Auth and Auth.__request__
class AuthRequest(BaseModel, extra=Extra.forbid):
    some_field: str
    user: UserRequest


# Rougly equivalent to User.__response__
class UserResponse(BaseModel, extra=Extra.ignore):
    id: UUID
    name: str

# Rougly equivalent to Auth.__response__
class AuthResponse(BaseModel, extra=Extra.ignore):
    some_field: str
    user: UserResponse


# Rougly equivalent to User.__patch_request__
class UserPatchRequest(BaseModel, extra=Extra.forbid):
    id: UUID | None
    name: str | None

# Rougly equivalent to Auth.__patch_request__
class AuthPatchRequest(BaseModel, extra=Extra.forbid):
    some_field: str | None
    user: UserPatchRequest | None

So it takes you up to 3 times less code to write the same thing. Note also that pydantic-duality does everything lazily so you will not notice any significant performance or memory usage difference when using it instead of writing everything by hand. Think of it as using all the customized models as cached properties.

Inheritance, inner models, custom configs, custom names, config kwargs, isinstance and subclass checks work intuitively and in the same manner as they would work if you were not using pydantic-duality.

Help

See documentation for more details

Release files for pydantic-duality 2.0.2

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

Source distribution (sdist)

Source distribution for pydantic-duality 2.0.2
File	Size	Uploaded
pydantic_duality-2.0.2.tar.gz	6.1 kB	Dec 26, 2024	Details

Built distribution (wheel)

Table of built distributions (wheels) for pydantic-duality 2.0.2
File	Interpreter	ABI	Platform	Reset
pydantic_duality-2.0.2-py3-none-any.whl 6.2 kB Dec 26, 2024	Python 3	none	any	Details

Total release size: 12.3 kB

Release files / pydantic_duality-2.0.2.tar.gz

Download URL	pydantic_duality-2.0.2.tar.gz
Size	6.1 kB
Tags	Source
SHA-256 checksum How to use checksums	`7416010fa52ced397dfec9324a4ea6d759e0efd1b3a37b18dc5596552709edda`
BLAKE2b-256 checksum How to use checksums	`4c61d5dbb0b45243710106c53a67086fea93e7ed98ebb12dbfb4a35eaaf7d876`
Upload date	Dec 26, 2024
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`poetry/1.8.3 CPython/3.12.6 Darwin/24.1.0`

Release files / pydantic_duality-2.0.2-py3-none-any.whl

Download URL	pydantic_duality-2.0.2-py3-none-any.whl
Size	6.2 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`5ca6028cdcc03509a0204c3b3d1a2073784c055f8d939320cab8a1e31df08266`
BLAKE2b-256 checksum How to use checksums	`b504cd2c47ba56496cfcaeb1c809ea3cec683fcfcb2e050f397f183c668032e2`
Upload date	Dec 26, 2024
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`poetry/1.8.3 CPython/3.12.6 Darwin/24.1.0`