[tool.datamodel-codegen] input = "schema.yaml" output = "src/models.py" output-model-type = "pydantic_v2.BaseModel"

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Python data model generator (Pydantic, dataclasses, TypedDict, msgspec) from OpenAPI, JSON Schema, GraphQL, and raw data (JSON/YAML/CSV). - Releases · koxudaxi/datamodel-code-generator

# generated by datamodel-codegen: # filename: person.json # timestamp: 2023-04-09T05:36:24+00:00 from __future__ import annotations from typing import Optional from pydantic import BaseModel # This is a custom comment generated with custom_template!!

2 weeks ago - Use a named profile from pyproject.toml [tool.datamodel-codegen.profiles.<name>] --version · show version · --watch · Watch input file(s) for changes and regenerate output automatically · --watch-delay WATCH_DELAY · Debounce delay in seconds for watch mode (default: 0.5) -h, --help · show this help message and exit · Documentation: https://datamodel-code-generator.koxudaxi.dev GitHub: https://github.com/koxudaxi/datamodel-code-generator ·

CodeSandbox is a cloud development platform that empowers developers to code, collaborate and ship projects of any size from any device in record time.

The OP did file an issue for this as recommended in the question comments: https://github.com/koxudaxi/datamodel-code-generator/issues/1541

# 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]

Use a named profile from pyproject.toml [tool.datamodel-codegen.profiles.<name>] --version · show version · --watch · Watch input file(s) for changes and regenerate output automatically · --watch-delay WATCH_DELAY · Debounce delay in seconds for watch mode (default: 0.5) -h, --help · show this help message and exit · Documentation: https://koxudaxi.github.io/datamodel-code-generator GitHub: https://github.com/koxudaxi/datamodel-code-generator ·

usage: datamodel-codegen [options] Generate Python data models from schema definitions or structured data Options: --additional-imports ADDITIONAL_IMPORTS Custom imports for output (delimited list input).

August 9, 2021 - The datamodel-code-generator package has 35 open issues on GitHub ... A pluggable API specification generator. Currently supports the OpenAPI Specification (f.k.a. the Swagger specification).

$ git clone git@github.com:koxudaxi/datamodel-code-generator.git $ pip install -e datamodel-code-generator

$ datamodel-codegen --input {your_input_file} --output {your_output_file} --custom-formatters "{path_to_your_module}.your_module"

`$ pip install 'datamodel-code-generator[debug]'`) --disable-warnings disable warnings --generate-cli-command Generate CLI command from pyproject.toml configuration and exit --generate-pyproject-config Generate pyproject.toml configuration from the provided CLI arguments and exit --ignore-pyproject Ignore pyproject.toml configuration --no-color disable colorized output --profile PROFILE Use a named profile from pyproject.toml [tool.datamodel-codegen.profiles.<name>] --version show version --watch Watch input file(s) for changes and regenerate output automatically --watch-delay WATCH_DELAY Debounce delay in seconds for watch mode (default: 0.5) -h, --help show this help message and exit Documentation: https://koxudaxi.github.io/datamodel-code-generator GitHub: https://github.com/koxudaxi/datamodel-code-generator datamodel-codegen 0.45.0-1 December 2025 ·

pip install 'datamodel-code-generator[http]' datamodel-codegen --url https://example.com/api/openapi.yaml --output model.py

from datamodel_code_generator import InputFileType, generate, GenerateConfig, GeneratedModules # Your OpenAPI specification (string, Path, or dict) openapi_spec: str = "..." # Replace with your actual OpenAPI spec # Schema that generates multiple modules (e.g., with $ref to other files) config = GenerateConfig( input_file_type=InputFileType.OpenAPI, ) result: str | GeneratedModules = generate(openapi_spec, config=config) if isinstance(result, dict): for module_path, content in result.items(): print(f"Module: {'/'.join(module_path)}") print(content) print("---") else: print(result)

January 7, 2026 - Organization created on Apr 11, 2015 · A community-led collection of recipes, build infrastructure, and distributions for the conda package manager

September 14, 2020 - Is your feature request related to a problem? Please describe. Now the tool cli API supports only single file as input. I'd suggest to extend it to have directory as as option. This would help with generating models from json-schema (or ...

May 9, 2022 - Describe the bug I am trying to auto-generate schema models using datamodel-codegen on an openapi documentation:- https://d3a0d0y2hgofx6.cloudfront.net/openapi/en-us/dsp/3-1/openapi.yaml The generated schema models has duplicate fields w...

`$ pip install 'datamodel-code-generator[debug]'`) --disable-warnings disable warnings --no-color disable colorized output --version show version -h, --help show this help message and exit Copy · This code generator creates FastAPI⁠ app from an openapi file. https://github.com/koxudaxi/...