fix: Python 3.8 comptible type hints.

Author: mike-oakley

openapi_pydantic/compat.py

@@ -1,6 +1,6 @@
 """Compatibility layer to make this package usable with Pydantic 1 or 2"""
 
-from typing import TYPE_CHECKING, Optional
+from typing import TYPE_CHECKING, Dict, List, Optional, Tuple
 
 from pydantic.version import VERSION as PYDANTIC_VERSION
 
@@ -30,7 +30,7 @@
 
     def ConfigDict(
         extra: Literal["allow", "ignore", "forbid"] = "allow",
-        json_schema_extra: Optional[dict[str, Any]] = None,
+        json_schema_extra: Optional[Dict[str, Any]] = None,
         populate_by_name: bool = True,
     ) -> PydanticConfigDict:
         """Stub for pydantic.ConfigDict in Pydantic 2"""
@@ -49,21 +49,21 @@ class RootModel(BaseModel):
     JsonSchemaMode = Literal["validation", "serialization"]
 
     def models_json_schema(
-        models: list[tuple[Type[BaseModel], JsonSchemaMode]],
+        models: List[Tuple[Type[BaseModel], JsonSchemaMode]],
         *,
         by_alias: bool = True,
         ref_template: str = "#/$defs/{model}",
         schema_generator: Optional[type] = None,
-    ) -> tuple[dict, dict[str, Any]]:
+    ) -> Tuple[Dict, Dict[str, Any]]:
         """Stub for pydantic.json_schema.models_json_schema in Pydantic 2"""
         ...
 
     def v1_schema(
-        models: list[Type[BaseModel]],
+        models: List[Type[BaseModel]],
         *,
         by_alias: bool = True,
         ref_prefix: str = "#/$defs",
-    ) -> dict[str, Any]:
+    ) -> Dict[str, Any]:
         """Stub for pydantic.schema.schema in Pydantic 1"""
         ...
 

openapi_pydantic/util.py

@@ -1,5 +1,5 @@
 import logging
-from typing import Any, Generic, List, Optional, Set, Type, TypeVar, cast
+from typing import Any, Dict, Generic, List, Optional, Set, Type, TypeVar, cast
 
 from pydantic import BaseModel
 
@@ -110,7 +110,7 @@ def construct_open_api_with_schema_class(
     return new_open_api
 
 
-def _validate_schemas(schema_definitions: dict[str, Any]) -> dict[str, Schema]:
+def _validate_schemas(schema_definitions: Dict[str, Any]) -> Dict[str, Schema]:
     """Convert JSON Schema definitions to parsed OpenAPI objects"""
     # Note: if an error occurs in schema_validate(), it may indicate that
     # the generated JSON schemas are not compatible with the version

openapi_pydantic/v3/v3_0_3/schema.py

@@ -604,7 +604,7 @@ def schema_validate(
         *,
         strict: Optional[bool] = None,
         from_attributes: Optional[bool] = None,
-        context: Optional[dict[str, Any]] = None
+        context: Optional[Dict[str, Any]] = None
     ) -> Schema:
         ...
 

openapi_pydantic/v3/v3_0_3/util.py

@@ -2,6 +2,7 @@
 from typing import (
     TYPE_CHECKING,
     Any,
+    Dict,
     Generic,
     List,
     Optional,
@@ -153,8 +154,8 @@ def construct_open_api_with_schema_class(
 
 
 def _validate_schemas(
-    schema_definitions: dict[str, Any]
-) -> dict[str, Union[Reference, Schema]]:
+    schema_definitions: Dict[str, Any]
+) -> Dict[str, Union[Reference, Schema]]:
     """Convert JSON Schema definitions to parsed OpenAPI objects"""
     # Note: if an error occurs in schema_validate(), it may indicate that
     # the generated JSON schemas are not compatible with the version

openapi_pydantic/v3/v3_1_0/schema.py

@@ -961,7 +961,7 @@ def schema_validate(
         *,
         strict: Optional[bool] = None,
         from_attributes: Optional[bool] = None,
-        context: Optional[dict[str, Any]] = None
+        context: Optional[Dict[str, Any]] = None
     ) -> Schema:
         ...
 

tests/util/test_pydantic_field.py

@@ -1,4 +1,4 @@
-from typing import Any, Union
+from typing import Any, Dict, Union
 
 from pydantic import BaseModel, Field
 from typing_extensions import Literal
@@ -59,8 +59,8 @@ def construct_base_open_api() -> OpenAPI:
 def test_pydantic_discriminator_schema_generation() -> None:
     """https://github.com/kuimono/openapi-schema-pydantic/issues/8"""
 
-    a_kind: dict[str, Any]
-    b_kind: dict[str, Any]
+    a_kind: Dict[str, Any]
+    b_kind: Dict[str, Any]
 
     if PYDANTIC_V2:
         _key_map, json_schema = models_json_schema([(RequestModel, "validation")])