[Bug]: OAS 3.1 list-style "type" raises in SchemaCaster and StyleDeserializersFactory

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3/5
预计耗时
1-2 天
新手友好度
58/100
Issue 类型
缺陷
描述清晰度
基本清楚
活跃度
冷清
技术栈
python
领域
api

调研方向

Start with the reproduced call to oas31_schema_casters_factory.create and inspect SchemaCaster and StyleDeserializersFactory, especially where SchemaPath values are read. Check how SchemaPath.read_str_or_list can support both string and list-form type values, then rerun the provided casting example and verify style deserialization also handles the OpenAPI 3.1 form.

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描述

kind/bug kind/bug/confirmed
Actual Behavior

When a schema uses OpenAPI 3.1's list form for type (e.g. type: ["string", "integer"]), parameter casting and style deserialization fail.

It works okay in version 0.19.5, but does not work in version 0.23.1 (I did not test the versions in between).

Expected Behavior

Per the OpenAPI 3.1 specification, type may be either a string or a non-empty array of strings.

Steps to Reproduce
from openapi_core.casting.schemas import oas31_schema_casters_factory
from jsonschema_path import SchemaPath

spec = {
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "type": ["string", "number", "boolean"]
}

schema = SchemaPath.from_dict(spec)
oas31_schema_casters_factory.create(spec, schema).cast("42")

This snippet raises TypeError: Expected a string value, got <class 'list'>.

OpenAPI Core Version

0.23.1

OpenAPI Core Integration

flask

Affected Area(s)

casting, deserializing.

References

No response

Anything else we need to know?

jsonschema_path.SchemaPath already exposes read_str_or_list. So we should use it.

Would you like to implement a fix?

Yes

主要语言
Python
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