datamodel-code-generator-genson-wheel


Namedatamodel-code-generator-genson-wheel JSON
Version 0.25.6 PyPI version JSON
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home_pagehttps://github.com/koxudaxi/datamodel-code-generator
SummaryDatamodel Code Generator
upload_time2024-05-12 02:26:24
maintainerNone
docs_urlNone
authorKoudai Aono
requires_python<4.0,>=3.7
licenseMIT
keywords
VCS
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requirements No requirements were recorded.
Travis-CI No Travis.
coveralls test coverage No coveralls.
            # datamodel-code-generator

This code generator creates [pydantic v1 and v2](https://docs.pydantic.dev/) model, [dataclasses.dataclass](https://docs.python.org/3/library/dataclasses.html) and [typing.TypedDict](https://docs.python.org/3/library/typing.html#typing.TypedDict) from an openapi file and others.

[![Build Status](https://github.com/koxudaxi/datamodel-code-generator/workflows/Test/badge.svg)](https://github.com/koxudaxi/datamodel-code-generator/actions?query=workflow%3ATest)
[![PyPI version](https://badge.fury.io/py/datamodel-code-generator.svg)](https://pypi.python.org/pypi/datamodel-code-generator)
[![Conda-forge](https://img.shields.io/conda/v/conda-forge/datamodel-code-generator)](https://anaconda.org/conda-forge/datamodel-code-generator)
[![Downloads](https://pepy.tech/badge/datamodel-code-generator/month)](https://pepy.tech/project/datamodel-code-generator)
[![PyPI - Python Version](https://img.shields.io/pypi/pyversions/datamodel-code-generator)](https://pypi.python.org/pypi/datamodel-code-generator)
[![codecov](https://codecov.io/gh/koxudaxi/datamodel-code-generator/branch/master/graph/badge.svg)](https://codecov.io/gh/koxudaxi/datamodel-code-generator)
![license](https://img.shields.io/github/license/koxudaxi/datamodel-code-generator.svg)
[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)


## Help
See [documentation](https://koxudaxi.github.io/datamodel-code-generator) for more details.

## Sponsors
[![JetBrains](https://avatars.githubusercontent.com/u/60931315?s=200&v=4)](https://github.com/JetBrainsOfficial)

## Quick Installation

To install `datamodel-code-generator`:
```bash
$ pip install datamodel-code-generator
```

## Simple Usage
You can generate models from a local file.
```bash
$ datamodel-codegen --input api.yaml --output model.py
```

<details>
<summary>api.yaml</summary>

```yaml
openapi: "3.0.0"
info:
  version: 1.0.0
  title: Swagger Petstore
  license:
    name: MIT
servers:
  - url: http://petstore.swagger.io/v1
paths:
  /pets:
    get:
      summary: List all pets
      operationId: listPets
      tags:
        - pets
      parameters:
        - name: limit
          in: query
          description: How many items to return at one time (max 100)
          required: false
          schema:
            type: integer
            format: int32
      responses:
        '200':
          description: A paged array of pets
          headers:
            x-next:
              description: A link to the next page of responses
              schema:
                type: string
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Pets"
        default:
          description: unexpected error
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Error"
                x-amazon-apigateway-integration:
                  uri:
                    Fn::Sub: arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${PythonVersionFunction.Arn}/invocations
                  passthroughBehavior: when_no_templates
                  httpMethod: POST
                  type: aws_proxy
    post:
      summary: Create a pet
      operationId: createPets
      tags:
        - pets
      responses:
        '201':
          description: Null response
        default:
          description: unexpected error
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Error"
                x-amazon-apigateway-integration:
                  uri:
                    Fn::Sub: arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${PythonVersionFunction.Arn}/invocations
                  passthroughBehavior: when_no_templates
                  httpMethod: POST
                  type: aws_proxy
  /pets/{petId}:
    get:
      summary: Info for a specific pet
      operationId: showPetById
      tags:
        - pets
      parameters:
        - name: petId
          in: path
          required: true
          description: The id of the pet to retrieve
          schema:
            type: string
      responses:
        '200':
          description: Expected response to a valid request
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Pets"
        default:
          description: unexpected error
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Error"
    x-amazon-apigateway-integration:
      uri:
        Fn::Sub: arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${PythonVersionFunction.Arn}/invocations
      passthroughBehavior: when_no_templates
      httpMethod: POST
      type: aws_proxy
components:
  schemas:
    Pet:
      required:
        - id
        - name
      properties:
        id:
          type: integer
          format: int64
        name:
          type: string
        tag:
          type: string
    Pets:
      type: array
      items:
        $ref: "#/components/schemas/Pet"
    Error:
      required:
        - code
        - message
      properties:
        code:
          type: integer
          format: int32
        message:
          type: string
    apis:
      type: array
      items:
        type: object
        properties:
          apiKey:
            type: string
            description: To be used as a dataset parameter value
          apiVersionNumber:
            type: string
            description: To be used as a version parameter value
          apiUrl:
            type: string
            format: uri
            description: "The URL describing the dataset's fields"
          apiDocumentationUrl:
            type: string
            format: uri
            description: A URL to the API console for each API
```

</details>

<details>
<summary>model.py</summary>

```python
# generated by datamodel-codegen:
#   filename:  api.yaml
#   timestamp: 2020-06-02T05:28:24+00:00

from __future__ import annotations

from typing import List, Optional

from pydantic import AnyUrl, BaseModel, Field


class Pet(BaseModel):
    id: int
    name: str
    tag: Optional[str] = None


class Pets(BaseModel):
    __root__: List[Pet]


class Error(BaseModel):
    code: int
    message: str


class Api(BaseModel):
    apiKey: Optional[str] = Field(
        None, description='To be used as a dataset parameter value'
    )
    apiVersionNumber: Optional[str] = Field(
        None, description='To be used as a version parameter value'
    )
    apiUrl: Optional[AnyUrl] = Field(
        None, description="The URL describing the dataset's fields"
    )
    apiDocumentationUrl: Optional[AnyUrl] = Field(
        None, description='A URL to the API console for each API'
    )


class Apis(BaseModel):
    __root__: List[Api]
```
</details>

## Projects that use datamodel-code-generator
These OSS projects use datamodel-code-generator to generate many models. See the following linked projects for real world examples and inspiration.
- [Netflix/consoleme](https://github.com/Netflix/consoleme)
  - *[How do I generate models from the Swagger specification?](https://github.com/Netflix/consoleme/blob/master/docs/gitbook/faq.md#how-do-i-generate-models-from-the-swagger-specification)*
- [DataDog/integrations-core](https://github.com/DataDog/integrations-core)
  - *[Config models](https://github.com/DataDog/integrations-core/blob/master/docs/developer/meta/config-models.md)*
- [awslabs/aws-lambda-powertools-python](https://github.com/awslabs/aws-lambda-powertools-python)
  - *Recommended for [advanced-use-cases](https://awslabs.github.io/aws-lambda-powertools-python/2.6.0/utilities/parser/#advanced-use-cases) in the official documentation*
- [open-metadata/OpenMetadata](https://github.com/open-metadata/OpenMetadata)
  - [Makefile](https://github.com/open-metadata/OpenMetadata/blob/main/Makefile)
- [airbytehq/airbyte](https://github.com/airbytehq/airbyte)
  - *[code-generator/Dockerfile](https://github.com/airbytehq/airbyte/blob/master/tools/code-generator/Dockerfile)*
- [IBM/compliance-trestle](https://github.com/IBM/compliance-trestle)
  - *[Building the models from the OSCAL schemas.](https://github.com/IBM/compliance-trestle/blob/develop/docs/contributing/website.md#building-the-models-from-the-oscal-schemas)*
- [SeldonIO/MLServer](https://github.com/SeldonIO/MLServer)
  - *[generate-types.sh](https://github.com/SeldonIO/MLServer/blob/master/hack/generate-types.sh)*
## Supported input types
-  OpenAPI 3 (YAML/JSON, [OpenAPI Data Type](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.2.md#data-types))
-  JSON Schema ([JSON Schema Core](http://json-schema.org/draft/2019-09/json-schema-validation.html)/[JSON Schema Validation](http://json-schema.org/draft/2019-09/json-schema-validation.html))
-  JSON/YAML/CSV Data (it will be converted to JSON Schema)
-  Python dictionary (it will be converted to JSON Schema)

## Supported output types
- [pydantic](https://docs.pydantic.dev/1.10/).BaseModel
- [pydantic_v2](https://docs.pydantic.dev/2.0/).BaseModel
- [dataclasses.dataclass](https://docs.python.org/3/library/dataclasses.html)
- [typing.TypedDict](https://docs.python.org/3/library/typing.html#typing.TypedDict)

## Installation

To install `datamodel-code-generator`:
```bash
$ pip install datamodel-code-generator
```

### `http` extra option
If you want to resolve `$ref` for remote files then you should specify `http` extra option.
```bash
$ pip install datamodel-code-generator[http]
```

### Docker Image
The docker image is in [Docker Hub](https://hub.docker.com/r/koxudaxi/datamodel-code-generator)
```bash
$ docker pull koxudaxi/datamodel-code-generator
```

## Advanced Uses
You can genearte models from a URL.
```bash
$ datamodel-codegen --url https://<INPUT FILE URL> --output model.py
```
This method needs the [http extra option](#http-extra-option)


## All Command Options

The `datamodel-codegen` command:
```bash
usage: datamodel-codegen [-h] [--input INPUT] [--url URL]
                         [--http-headers HTTP_HEADER [HTTP_HEADER ...]]
                         [--http-ignore-tls]
                         [--input-file-type {auto,openapi,jsonschema,json,yaml,dict,csv}]
                         [--output-model-type {pydantic.BaseModel,pydantic_v2.BaseModel,dataclasses.dataclass,typing.TypedDict}]
                         [--openapi-scopes {schemas,paths,tags,parameters} [{schemas,paths,tags,parameters} ...]]
                         [--output OUTPUT] [--base-class BASE_CLASS]
                         [--field-constraints] [--use-annotated]
                         [--use-non-positive-negative-number-constrained-types]
                         [--field-extra-keys FIELD_EXTRA_KEYS [FIELD_EXTRA_KEYS ...]]
                         [--field-include-all-keys]
                         [--field-extra-keys-without-x-prefix FIELD_EXTRA_KEYS_WITHOUT_X_PREFIX [FIELD_EXTRA_KEYS_WITHOUT_X_PREFIX ...]] 
                         [--snake-case-field]
                         [--original-field-name-delimiter ORIGINAL_FIELD_NAME_DELIMITER]
                         [--strip-default-none]
                         [--disable-appending-item-suffix]
                         [--allow-population-by-field-name]
                         [--allow-extra-fields] [--enable-faux-immutability]
                         [--use-default] [--force-optional]
                         [--strict-nullable]
                         [--strict-types {str,bytes,int,float,bool} [{str,bytes,int,float,bool} ...]]
                         [--disable-timestamp] [--use-standard-collections]
                         [--use-generic-container-types]
                         [--use-union-operator] [--use-schema-description]
                         [--use-field-description] [--use-default-kwarg]
                         [--reuse-model] [--keep-model-order]
                         [--collapse-root-models]
                         [--enum-field-as-literal {all,one}] [--use-one-literal-as-default]
                         [--set-default-enum-member]
                         [--empty-enum-field-name EMPTY_ENUM_FIELD_NAME]
                         [--capitalise-enum-members]
                         [--special-field-name-prefix SPECIAL_FIELD_NAME_PREFIX]
                         [--remove-special-field-name-prefix]
                         [--use-subclass-enum] [--class-name CLASS_NAME]
                         [--use-title-as-name] [--use-operation-id-as-name]
                         [--use-unique-items-as-set]
                         [--custom-template-dir CUSTOM_TEMPLATE_DIR]
                         [--extra-template-data EXTRA_TEMPLATE_DATA]
                         [--aliases ALIASES]
                         [--target-python-version {3.6,3.7,3.8,3.9,3.10,3.11}]
                         [--wrap-string-literal] [--validation]
                         [--use-double-quotes] [--encoding ENCODING] [--debug]
                         [--disable-warnings] [--version]

options:
  -h, --help            show this help message and exit
  --input INPUT         Input file/directory (default: stdin)
  --url URL             Input file URL. `--input` is ignored when `--url` is
                        used
  --http-headers HTTP_HEADER [HTTP_HEADER ...]
                        Set headers in HTTP requests to the remote host.
                        (example: "Authorization: Basic dXNlcjpwYXNz")
  --http-ignore-tls     Disable verification of the remote host's TLS
                        certificate
  --input-file-type {auto,openapi,jsonschema,json,yaml,dict,csv}
                        Input file type (default: auto)
  --output-model-type {pydantic.BaseModel,pydantic_v2.BaseModel,dataclasses.dataclass,typing.TypedDict}
                        Output model type (default: pydantic.BaseModel)
  --openapi-scopes {schemas,paths,tags,parameters} [{schemas,paths,tags,parameters} ...]
                        Scopes of OpenAPI model generation (default: schemas)
  --output OUTPUT       Output file (default: stdout)
  --base-class BASE_CLASS
                        Base Class (default: pydantic.BaseModel)
  --field-constraints   Use field constraints and not con* annotations
  --use-annotated       Use typing.Annotated for Field(). Also, `--field-
                        constraints` option will be enabled.
  --use-non-positive-negative-number-constrained-types
                        Use the Non{Positive,Negative}{FloatInt} types instead
                        of the corresponding con* constrained types.
  --field-extra-keys FIELD_EXTRA_KEYS [FIELD_EXTRA_KEYS ...]
                        Add extra keys to field parameters
  --field-include-all-keys
                        Add all keys to field parameters
  --field-extra-keys-without-x-prefix
                        Add extra keys with `x-` prefix to field parameters.
                        The extra keys are stripped of the `x-` prefix.
  --snake-case-field    Change camel-case field name to snake-case
  --original-field-name-delimiter ORIGINAL_FIELD_NAME_DELIMITER
                        Set delimiter to convert to snake case. This option
                        only can be used with --snake-case-field (default: `_`
                        )
  --strip-default-none  Strip default None on fields
  --disable-appending-item-suffix
                        Disable appending `Item` suffix to model name in an
                        array
  --allow-population-by-field-name
                        Allow population by field name
  --allow-extra-fields  Allow to pass extra fields, if this flag is not
                        passed, extra fields are forbidden.
  --enable-faux-immutability
                        Enable faux immutability
  --use-default         Use default value even if a field is required
  --force-optional      Force optional for required fields
  --strict-nullable     Treat default field as a non-nullable field (Only
                        OpenAPI)
  --strict-types {str,bytes,int,float,bool} [{str,bytes,int,float,bool} ...]
                        Use strict types
  --disable-timestamp   Disable timestamp on file headers
  --use-standard-collections
                        Use standard collections for type hinting (list, dict)
  --use-generic-container-types
                        Use generic container types for type hinting
                        (typing.Sequence, typing.Mapping). If `--use-standard-
                        collections` option is set, then import from
                        collections.abc instead of typing
  --use-union-operator  Use | operator for Union type (PEP 604).
  --use-schema-description
                        Use schema description to populate class docstring
  --use-field-description
                        Use schema description to populate field docstring
  --use-default-kwarg   Use `default=` instead of a positional argument for
                        Fields that have default values.
  --reuse-model         Re-use models on the field when a module has the model
                        with the same content
  --keep-model-order    Keep generated models' order
  --collapse-root-models
                        Models generated with a root-type field will be
                        mergedinto the models using that root-type model
  --enum-field-as-literal {all,one}
                        Parse enum field as literal. all: all enum field type
                        are Literal. one: field type is Literal when an enum
                        has only one possible value
  --use-one-literal-as-default
                        Use one literal as default value for one literal field
  --set-default-enum-member
                        Set enum members as default values for enum field
  --empty-enum-field-name EMPTY_ENUM_FIELD_NAME
                        Set field name when enum value is empty (default: `_`)
  --capitalise-enum-members
                        Capitalize field names on enum
  --special-field-name-prefix SPECIAL_FIELD_NAME_PREFIX
                        Set field name prefix when first character can't be
                        used as Python field name (default: `field`)
  --remove-special-field-name-prefix
                        Remove field name prefix when first character can't be
                        used as Python field name
  --use-subclass-enum   Define Enum class as subclass with field type when
                        enum has type (int, float, bytes, str)
  --class-name CLASS_NAME
                        Set class name of root model
  --use-title-as-name   use titles as class names of models
  --use-unique-items-as-set
                        define field type as `set` when the field attribute
                        has `uniqueItems`
  --custom-template-dir CUSTOM_TEMPLATE_DIR
                        Custom template directory
  --extra-template-data EXTRA_TEMPLATE_DATA
                        Extra template data
  --aliases ALIASES     Alias mapping file
  --target-python-version {3.6,3.7,3.8,3.9,3.10,3.11}
                        target python version (default: 3.7)
  --wrap-string-literal
                        Wrap string literal by using black `experimental-
                        string-processing` option (require black 20.8b0 or
                        later)
  --validation          Enable validation (Only OpenAPI)
  --use-double-quotes   Model generated with double quotes. Single quotes or
                        your black config skip_string_normalization value will
                        be used without this option.
  --encoding ENCODING   The encoding of input and output (default: cp1252)
  --debug               show debug message
  --disable-warnings    disable warnings
  --version             show version
```

## Related projects
### fastapi-code-generator
This code generator creates [FastAPI](https://github.com/tiangolo/fastapi) app from an openapi file.

[https://github.com/koxudaxi/fastapi-code-generator](https://github.com/koxudaxi/fastapi-code-generator)

### pydantic-pycharm-plugin
[A JetBrains PyCharm plugin](https://plugins.jetbrains.com/plugin/12861-pydantic) for [`pydantic`](https://github.com/samuelcolvin/pydantic).

[https://github.com/koxudaxi/pydantic-pycharm-plugin](https://github.com/koxudaxi/pydantic-pycharm-plugin)

## PyPi

[https://pypi.org/project/datamodel-code-generator](https://pypi.org/project/datamodel-code-generator)

## License

datamodel-code-generator is released under the MIT License. http://www.opensource.org/licenses/mit-license

            

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    "requires_python": "<4.0,>=3.7",
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    "author": "Koudai Aono",
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    "platform": null,
    "description": "# datamodel-code-generator\n\nThis code generator creates [pydantic v1 and v2](https://docs.pydantic.dev/) model, [dataclasses.dataclass](https://docs.python.org/3/library/dataclasses.html) and [typing.TypedDict](https://docs.python.org/3/library/typing.html#typing.TypedDict) from an openapi file and others.\n\n[![Build Status](https://github.com/koxudaxi/datamodel-code-generator/workflows/Test/badge.svg)](https://github.com/koxudaxi/datamodel-code-generator/actions?query=workflow%3ATest)\n[![PyPI version](https://badge.fury.io/py/datamodel-code-generator.svg)](https://pypi.python.org/pypi/datamodel-code-generator)\n[![Conda-forge](https://img.shields.io/conda/v/conda-forge/datamodel-code-generator)](https://anaconda.org/conda-forge/datamodel-code-generator)\n[![Downloads](https://pepy.tech/badge/datamodel-code-generator/month)](https://pepy.tech/project/datamodel-code-generator)\n[![PyPI - Python Version](https://img.shields.io/pypi/pyversions/datamodel-code-generator)](https://pypi.python.org/pypi/datamodel-code-generator)\n[![codecov](https://codecov.io/gh/koxudaxi/datamodel-code-generator/branch/master/graph/badge.svg)](https://codecov.io/gh/koxudaxi/datamodel-code-generator)\n![license](https://img.shields.io/github/license/koxudaxi/datamodel-code-generator.svg)\n[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)\n\n\n## Help\nSee [documentation](https://koxudaxi.github.io/datamodel-code-generator) for more details.\n\n## Sponsors\n[![JetBrains](https://avatars.githubusercontent.com/u/60931315?s=200&v=4)](https://github.com/JetBrainsOfficial)\n\n## Quick Installation\n\nTo install `datamodel-code-generator`:\n```bash\n$ pip install datamodel-code-generator\n```\n\n## Simple Usage\nYou can generate models from a local file.\n```bash\n$ datamodel-codegen --input api.yaml --output model.py\n```\n\n<details>\n<summary>api.yaml</summary>\n\n```yaml\nopenapi: \"3.0.0\"\ninfo:\n  version: 1.0.0\n  title: Swagger Petstore\n  license:\n    name: MIT\nservers:\n  - url: http://petstore.swagger.io/v1\npaths:\n  /pets:\n    get:\n      summary: List all pets\n      operationId: listPets\n      tags:\n        - pets\n      parameters:\n        - name: limit\n          in: query\n          description: How many items to return at one time (max 100)\n          required: false\n          schema:\n            type: integer\n            format: int32\n      responses:\n        '200':\n          description: A paged array of pets\n          headers:\n            x-next:\n              description: A link to the next page of responses\n              schema:\n                type: string\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Pets\"\n        default:\n          description: unexpected error\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Error\"\n                x-amazon-apigateway-integration:\n                  uri:\n                    Fn::Sub: arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${PythonVersionFunction.Arn}/invocations\n                  passthroughBehavior: when_no_templates\n                  httpMethod: POST\n                  type: aws_proxy\n    post:\n      summary: Create a pet\n      operationId: createPets\n      tags:\n        - pets\n      responses:\n        '201':\n          description: Null response\n        default:\n          description: unexpected error\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Error\"\n                x-amazon-apigateway-integration:\n                  uri:\n                    Fn::Sub: arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${PythonVersionFunction.Arn}/invocations\n                  passthroughBehavior: when_no_templates\n                  httpMethod: POST\n                  type: aws_proxy\n  /pets/{petId}:\n    get:\n      summary: Info for a specific pet\n      operationId: showPetById\n      tags:\n        - pets\n      parameters:\n        - name: petId\n          in: path\n          required: true\n          description: The id of the pet to retrieve\n          schema:\n            type: string\n      responses:\n        '200':\n          description: Expected response to a valid request\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Pets\"\n        default:\n          description: unexpected error\n          content:\n            application/json:\n              schema:\n                $ref: \"#/components/schemas/Error\"\n    x-amazon-apigateway-integration:\n      uri:\n        Fn::Sub: arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${PythonVersionFunction.Arn}/invocations\n      passthroughBehavior: when_no_templates\n      httpMethod: POST\n      type: aws_proxy\ncomponents:\n  schemas:\n    Pet:\n      required:\n        - id\n        - name\n      properties:\n        id:\n          type: integer\n          format: int64\n        name:\n          type: string\n        tag:\n          type: string\n    Pets:\n      type: array\n      items:\n        $ref: \"#/components/schemas/Pet\"\n    Error:\n      required:\n        - code\n        - message\n      properties:\n        code:\n          type: integer\n          format: int32\n        message:\n          type: string\n    apis:\n      type: array\n      items:\n        type: object\n        properties:\n          apiKey:\n            type: string\n            description: To be used as a dataset parameter value\n          apiVersionNumber:\n            type: string\n            description: To be used as a version parameter value\n          apiUrl:\n            type: string\n            format: uri\n            description: \"The URL describing the dataset's fields\"\n          apiDocumentationUrl:\n            type: string\n            format: uri\n            description: A URL to the API console for each API\n```\n\n</details>\n\n<details>\n<summary>model.py</summary>\n\n```python\n# generated by datamodel-codegen:\n#   filename:  api.yaml\n#   timestamp: 2020-06-02T05:28:24+00:00\n\nfrom __future__ import annotations\n\nfrom typing import List, Optional\n\nfrom pydantic import AnyUrl, BaseModel, Field\n\n\nclass Pet(BaseModel):\n    id: int\n    name: str\n    tag: Optional[str] = None\n\n\nclass Pets(BaseModel):\n    __root__: List[Pet]\n\n\nclass Error(BaseModel):\n    code: int\n    message: str\n\n\nclass Api(BaseModel):\n    apiKey: Optional[str] = Field(\n        None, description='To be used as a dataset parameter value'\n    )\n    apiVersionNumber: Optional[str] = Field(\n        None, description='To be used as a version parameter value'\n    )\n    apiUrl: Optional[AnyUrl] = Field(\n        None, description=\"The URL describing the dataset's fields\"\n    )\n    apiDocumentationUrl: Optional[AnyUrl] = Field(\n        None, description='A URL to the API console for each API'\n    )\n\n\nclass Apis(BaseModel):\n    __root__: List[Api]\n```\n</details>\n\n## Projects that use datamodel-code-generator\nThese OSS projects use datamodel-code-generator to generate many models. See the following linked projects for real world examples and inspiration.\n- [Netflix/consoleme](https://github.com/Netflix/consoleme)\n  - *[How do I generate models from the Swagger specification?](https://github.com/Netflix/consoleme/blob/master/docs/gitbook/faq.md#how-do-i-generate-models-from-the-swagger-specification)*\n- [DataDog/integrations-core](https://github.com/DataDog/integrations-core)\n  - *[Config models](https://github.com/DataDog/integrations-core/blob/master/docs/developer/meta/config-models.md)*\n- [awslabs/aws-lambda-powertools-python](https://github.com/awslabs/aws-lambda-powertools-python)\n  - *Recommended for [advanced-use-cases](https://awslabs.github.io/aws-lambda-powertools-python/2.6.0/utilities/parser/#advanced-use-cases) in the official documentation*\n- [open-metadata/OpenMetadata](https://github.com/open-metadata/OpenMetadata)\n  - [Makefile](https://github.com/open-metadata/OpenMetadata/blob/main/Makefile)\n- [airbytehq/airbyte](https://github.com/airbytehq/airbyte)\n  - *[code-generator/Dockerfile](https://github.com/airbytehq/airbyte/blob/master/tools/code-generator/Dockerfile)*\n- [IBM/compliance-trestle](https://github.com/IBM/compliance-trestle)\n  - *[Building the models from the OSCAL schemas.](https://github.com/IBM/compliance-trestle/blob/develop/docs/contributing/website.md#building-the-models-from-the-oscal-schemas)*\n- [SeldonIO/MLServer](https://github.com/SeldonIO/MLServer)\n  - *[generate-types.sh](https://github.com/SeldonIO/MLServer/blob/master/hack/generate-types.sh)*\n## Supported input types\n-  OpenAPI 3 (YAML/JSON, [OpenAPI Data Type](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.2.md#data-types))\n-  JSON Schema ([JSON Schema Core](http://json-schema.org/draft/2019-09/json-schema-validation.html)/[JSON Schema Validation](http://json-schema.org/draft/2019-09/json-schema-validation.html))\n-  JSON/YAML/CSV Data (it will be converted to JSON Schema)\n-  Python dictionary (it will be converted to JSON Schema)\n\n## Supported output types\n- [pydantic](https://docs.pydantic.dev/1.10/).BaseModel\n- [pydantic_v2](https://docs.pydantic.dev/2.0/).BaseModel\n- [dataclasses.dataclass](https://docs.python.org/3/library/dataclasses.html)\n- [typing.TypedDict](https://docs.python.org/3/library/typing.html#typing.TypedDict)\n\n## Installation\n\nTo install `datamodel-code-generator`:\n```bash\n$ pip install datamodel-code-generator\n```\n\n### `http` extra option\nIf you want to resolve `$ref` for remote files then you should specify `http` extra option.\n```bash\n$ pip install datamodel-code-generator[http]\n```\n\n### Docker Image\nThe docker image is in [Docker Hub](https://hub.docker.com/r/koxudaxi/datamodel-code-generator)\n```bash\n$ docker pull koxudaxi/datamodel-code-generator\n```\n\n## Advanced Uses\nYou can genearte models from a URL.\n```bash\n$ datamodel-codegen --url https://<INPUT FILE URL> --output model.py\n```\nThis method needs the [http extra option](#http-extra-option)\n\n\n## All Command Options\n\nThe `datamodel-codegen` command:\n```bash\nusage: datamodel-codegen [-h] [--input INPUT] [--url URL]\n                         [--http-headers HTTP_HEADER [HTTP_HEADER ...]]\n                         [--http-ignore-tls]\n                         [--input-file-type {auto,openapi,jsonschema,json,yaml,dict,csv}]\n                         [--output-model-type {pydantic.BaseModel,pydantic_v2.BaseModel,dataclasses.dataclass,typing.TypedDict}]\n                         [--openapi-scopes {schemas,paths,tags,parameters} [{schemas,paths,tags,parameters} ...]]\n                         [--output OUTPUT] [--base-class BASE_CLASS]\n                         [--field-constraints] [--use-annotated]\n                         [--use-non-positive-negative-number-constrained-types]\n                         [--field-extra-keys FIELD_EXTRA_KEYS [FIELD_EXTRA_KEYS ...]]\n                         [--field-include-all-keys]\n                         [--field-extra-keys-without-x-prefix FIELD_EXTRA_KEYS_WITHOUT_X_PREFIX [FIELD_EXTRA_KEYS_WITHOUT_X_PREFIX ...]] \n                         [--snake-case-field]\n                         [--original-field-name-delimiter ORIGINAL_FIELD_NAME_DELIMITER]\n                         [--strip-default-none]\n                         [--disable-appending-item-suffix]\n                         [--allow-population-by-field-name]\n                         [--allow-extra-fields] [--enable-faux-immutability]\n                         [--use-default] [--force-optional]\n                         [--strict-nullable]\n                         [--strict-types {str,bytes,int,float,bool} [{str,bytes,int,float,bool} ...]]\n                         [--disable-timestamp] [--use-standard-collections]\n                         [--use-generic-container-types]\n                         [--use-union-operator] [--use-schema-description]\n                         [--use-field-description] [--use-default-kwarg]\n                         [--reuse-model] [--keep-model-order]\n                         [--collapse-root-models]\n                         [--enum-field-as-literal {all,one}] [--use-one-literal-as-default]\n                         [--set-default-enum-member]\n                         [--empty-enum-field-name EMPTY_ENUM_FIELD_NAME]\n                         [--capitalise-enum-members]\n                         [--special-field-name-prefix SPECIAL_FIELD_NAME_PREFIX]\n                         [--remove-special-field-name-prefix]\n                         [--use-subclass-enum] [--class-name CLASS_NAME]\n                         [--use-title-as-name] [--use-operation-id-as-name]\n                         [--use-unique-items-as-set]\n                         [--custom-template-dir CUSTOM_TEMPLATE_DIR]\n                         [--extra-template-data EXTRA_TEMPLATE_DATA]\n                         [--aliases ALIASES]\n                         [--target-python-version {3.6,3.7,3.8,3.9,3.10,3.11}]\n                         [--wrap-string-literal] [--validation]\n                         [--use-double-quotes] [--encoding ENCODING] [--debug]\n                         [--disable-warnings] [--version]\n\noptions:\n  -h, --help            show this help message and exit\n  --input INPUT         Input file/directory (default: stdin)\n  --url URL             Input file URL. `--input` is ignored when `--url` is\n                        used\n  --http-headers HTTP_HEADER [HTTP_HEADER ...]\n                        Set headers in HTTP requests to the remote host.\n                        (example: \"Authorization: Basic dXNlcjpwYXNz\")\n  --http-ignore-tls     Disable verification of the remote host's TLS\n                        certificate\n  --input-file-type {auto,openapi,jsonschema,json,yaml,dict,csv}\n                        Input file type (default: auto)\n  --output-model-type {pydantic.BaseModel,pydantic_v2.BaseModel,dataclasses.dataclass,typing.TypedDict}\n                        Output model type (default: pydantic.BaseModel)\n  --openapi-scopes {schemas,paths,tags,parameters} [{schemas,paths,tags,parameters} ...]\n                        Scopes of OpenAPI model generation (default: schemas)\n  --output OUTPUT       Output file (default: stdout)\n  --base-class BASE_CLASS\n                        Base Class (default: pydantic.BaseModel)\n  --field-constraints   Use field constraints and not con* annotations\n  --use-annotated       Use typing.Annotated for Field(). Also, `--field-\n                        constraints` option will be enabled.\n  --use-non-positive-negative-number-constrained-types\n                        Use the Non{Positive,Negative}{FloatInt} types instead\n                        of the corresponding con* constrained types.\n  --field-extra-keys FIELD_EXTRA_KEYS [FIELD_EXTRA_KEYS ...]\n                        Add extra keys to field parameters\n  --field-include-all-keys\n                        Add all keys to field parameters\n  --field-extra-keys-without-x-prefix\n                        Add extra keys with `x-` prefix to field parameters.\n                        The extra keys are stripped of the `x-` prefix.\n  --snake-case-field    Change camel-case field name to snake-case\n  --original-field-name-delimiter ORIGINAL_FIELD_NAME_DELIMITER\n                        Set delimiter to convert to snake case. This option\n                        only can be used with --snake-case-field (default: `_`\n                        )\n  --strip-default-none  Strip default None on fields\n  --disable-appending-item-suffix\n                        Disable appending `Item` suffix to model name in an\n                        array\n  --allow-population-by-field-name\n                        Allow population by field name\n  --allow-extra-fields  Allow to pass extra fields, if this flag is not\n                        passed, extra fields are forbidden.\n  --enable-faux-immutability\n                        Enable faux immutability\n  --use-default         Use default value even if a field is required\n  --force-optional      Force optional for required fields\n  --strict-nullable     Treat default field as a non-nullable field (Only\n                        OpenAPI)\n  --strict-types {str,bytes,int,float,bool} [{str,bytes,int,float,bool} ...]\n                        Use strict types\n  --disable-timestamp   Disable timestamp on file headers\n  --use-standard-collections\n                        Use standard collections for type hinting (list, dict)\n  --use-generic-container-types\n                        Use generic container types for type hinting\n                        (typing.Sequence, typing.Mapping). If `--use-standard-\n                        collections` option is set, then import from\n                        collections.abc instead of typing\n  --use-union-operator  Use | operator for Union type (PEP 604).\n  --use-schema-description\n                        Use schema description to populate class docstring\n  --use-field-description\n                        Use schema description to populate field docstring\n  --use-default-kwarg   Use `default=` instead of a positional argument for\n                        Fields that have default values.\n  --reuse-model         Re-use models on the field when a module has the model\n                        with the same content\n  --keep-model-order    Keep generated models' order\n  --collapse-root-models\n                        Models generated with a root-type field will be\n                        mergedinto the models using that root-type model\n  --enum-field-as-literal {all,one}\n                        Parse enum field as literal. all: all enum field type\n                        are Literal. one: field type is Literal when an enum\n                        has only one possible value\n  --use-one-literal-as-default\n                        Use one literal as default value for one literal field\n  --set-default-enum-member\n                        Set enum members as default values for enum field\n  --empty-enum-field-name EMPTY_ENUM_FIELD_NAME\n                        Set field name when enum value is empty (default: `_`)\n  --capitalise-enum-members\n                        Capitalize field names on enum\n  --special-field-name-prefix SPECIAL_FIELD_NAME_PREFIX\n                        Set field name prefix when first character can't be\n                        used as Python field name (default: `field`)\n  --remove-special-field-name-prefix\n                        Remove field name prefix when first character can't be\n                        used as Python field name\n  --use-subclass-enum   Define Enum class as subclass with field type when\n                        enum has type (int, float, bytes, str)\n  --class-name CLASS_NAME\n                        Set class name of root model\n  --use-title-as-name   use titles as class names of models\n  --use-unique-items-as-set\n                        define field type as `set` when the field attribute\n                        has `uniqueItems`\n  --custom-template-dir CUSTOM_TEMPLATE_DIR\n                        Custom template directory\n  --extra-template-data EXTRA_TEMPLATE_DATA\n                        Extra template data\n  --aliases ALIASES     Alias mapping file\n  --target-python-version {3.6,3.7,3.8,3.9,3.10,3.11}\n                        target python version (default: 3.7)\n  --wrap-string-literal\n                        Wrap string literal by using black `experimental-\n                        string-processing` option (require black 20.8b0 or\n                        later)\n  --validation          Enable validation (Only OpenAPI)\n  --use-double-quotes   Model generated with double quotes. Single quotes or\n                        your black config skip_string_normalization value will\n                        be used without this option.\n  --encoding ENCODING   The encoding of input and output (default: cp1252)\n  --debug               show debug message\n  --disable-warnings    disable warnings\n  --version             show version\n```\n\n## Related projects\n### fastapi-code-generator\nThis code generator creates [FastAPI](https://github.com/tiangolo/fastapi) app from an openapi file.\n\n[https://github.com/koxudaxi/fastapi-code-generator](https://github.com/koxudaxi/fastapi-code-generator)\n\n### pydantic-pycharm-plugin\n[A JetBrains PyCharm plugin](https://plugins.jetbrains.com/plugin/12861-pydantic) for [`pydantic`](https://github.com/samuelcolvin/pydantic).\n\n[https://github.com/koxudaxi/pydantic-pycharm-plugin](https://github.com/koxudaxi/pydantic-pycharm-plugin)\n\n## PyPi\n\n[https://pypi.org/project/datamodel-code-generator](https://pypi.org/project/datamodel-code-generator)\n\n## License\n\ndatamodel-code-generator is released under the MIT License. http://www.opensource.org/licenses/mit-license\n",
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