feat: make python http generator compatible with pydantic v2

Author: asim-ceman-ext

python_client_generator/templates/base_client.py.mustache

@@ -4,7 +4,10 @@ from uuid import UUID
 
 import httpx
 
-from pydantic import BaseModel
+try:
+    from pydantic.v1 import BaseModel
+except ImportError:
+    from pydantic import BaseModel
 
 
 class BaseClient(httpx.{{#async}}Async{{/async}}Client):

python_client_generator/templates/models.py.mustache

@@ -3,7 +3,10 @@ from enum import Enum
 from typing import Any, Dict, List, Literal, Optional, Union
 from uuid import UUID
 
-from pydantic import BaseModel, Field
+try:
+  from pydantic.v1 import BaseModel, Field
+except ImportError:
+  from pydantic import BaseModel, Field
 
 
 {{#enums}}

python_client_generator/templates/pyproject.toml.mustache

@@ -7,7 +7,7 @@ authors = ["Autogenerated Client <[email protected]>"]
 [tool.poetry.dependencies]
 python = "^3.7"
 httpx = ">=0.22, <1"
-pydantic = "^1"
+pydantic = ">1,<3"
 
 [tool.poetry.scripts]
 poetry = "poetry.console:main"

tests/expected/fastapi_app_client/base_client.py

@@ -4,7 +4,10 @@
 
 import httpx
 
-from pydantic import BaseModel
+try:
+    from pydantic.v1 import BaseModel
+except ImportError:
+    from pydantic import BaseModel
 
 
 class BaseClient(httpx.AsyncClient):

tests/expected/fastapi_app_client/models.py

@@ -3,7 +3,10 @@
 from typing import Any, Dict, List, Literal, Optional, Union
 from uuid import UUID
 
-from pydantic import BaseModel, Field
+try:
+  from pydantic.v1 import BaseModel, Field
+except ImportError:
+  from pydantic import BaseModel, Field
 
 
 class FooEnum(str, Enum):

tests/expected/fastapi_app_client/pyproject.toml

@@ -7,7 +7,7 @@ authors = ["Autogenerated Client <[email protected]>"]
 [tool.poetry.dependencies]
 python = "^3.7"
 httpx = ">=0.22, <1"
-pydantic = "^1"
+pydantic = ">1,<3"
 
 [tool.poetry.scripts]
 poetry = "poetry.console:main"

tests/expected/swagger_petstore_client/base_client.py

@@ -4,7 +4,10 @@
 
 import httpx
 
-from pydantic import BaseModel
+try:
+    from pydantic.v1 import BaseModel
+except ImportError:
+    from pydantic import BaseModel
 
 
 class BaseClient(httpx.AsyncClient):

tests/expected/swagger_petstore_client/models.py

@@ -3,7 +3,10 @@
 from typing import Any, Dict, List, Literal, Optional, Union
 from uuid import UUID
 
-from pydantic import BaseModel, Field
+try:
+  from pydantic.v1 import BaseModel, Field
+except ImportError:
+  from pydantic import BaseModel, Field
 
 
 class Order(BaseModel):

tests/expected/swagger_petstore_client/pyproject.toml

@@ -7,7 +7,7 @@ authors = ["Autogenerated Client <[email protected]>"]
 [tool.poetry.dependencies]
 python = "^3.7"
 httpx = ">=0.22, <1"
-pydantic = "^1"
+pydantic = ">1,<3"
 
 [tool.poetry.scripts]
 poetry = "poetry.console:main"