datamodel-code-generator

Version updated for https://github.com/koxudaxi/datamodel-code-generator to version 0.46.0.

  • This action is used across all versions by 2,486 repositories.

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Action Summary

The datamodel-code-generator GitHub Action automates the generation of Python data models from schema definitions such as OpenAPI 3, JSON Schema, GraphQL, or raw data formats like JSON, YAML, and CSV. It produces type-safe, validated code compatible with frameworks like Pydantic, dataclasses, and TypedDict, simplifying the handling of complex schemas and ensuring seamless integration with IDEs and type checkers. This tool streamlines the creation of data models, reducing manual effort and improving code reliability.

Release notes

Breaking Changes

Python Version

  • Python 3.9 support dropped - Minimum Python version is now 3.10+ (#2692)

Default Behavior Changes

  • Native type hints by default - list[...]/dict[...] are now used instead of List[...]/Dict[...]. Use --no-use-standard-collections to restore previous behavior (#2699)
  • Union operator by default - X | Y syntax is now used instead of Union[X, Y]/Optional[X]. Use --no-use-union-operator to restore previous behavior (#2703)

Code Generation Changes

  • Nullable required fields no longer have default values (Pydantic v2) - Fields marked as both required and nullable no longer get = None. The pydantic_v2/BaseModel.jinja2 template logic was updated to only assign default values when field.required is false. This fixes incorrect behavior where required fields could be omitted (#2520)
  • TypedDict respects enum_field_as_literal setting - TypedDict output now respects user’s --enum-field-as-literal setting instead of forcing all. Added new --enum-field-as-literal none option (#2691)
  • prefixItems now generates tuple types - JSON Schema prefixItems with matching minItems/maxItems and no items now generates tuple[T1, T2, ...] instead of list[...]. This applies when the array has a fixed length with heterogeneous types (#2537)

What’s Changed

New Contributors

Full Changelog: https://github.com/koxudaxi/datamodel-code-generator/compare/0.45.0...0.46.0