Fix HTTPBasic realm compatibility and restore FastAPI header behavior

fastapi/dependencies/utils.py

@@ -5,7 +5,6 @@ from collections.abc import Coroutine, Mapping, Sequence
 from contextlib import AsyncExitStack, contextmanager
 from copy import copy, deepcopy
 from dataclasses import dataclass
-from typing import get_type_hints
 from typing import (
     Annotated,
     Any,
@@ -14,6 +13,7 @@ from typing import (
     Optional,
     Union,
     cast,
+    get_type_hints,
 )
 
 import anyio

fastapi/security/http.py

@@ -126,7 +126,6 @@ class HTTPBasic(HTTPBase):
     def make_authenticate_headers(self) -> dict[str, str]:
         return {"WWW-Authenticate": "Basic"}
 
-
     async def __call__(  # type: ignore
         self, request: Request
     ) -> Optional[HTTPBasicCredentials]:

tests/test_security_http_base.py

@@ -1,7 +1,7 @@
-from fastapi import FastAPI, Security, Depends
+from fastapi import Depends, FastAPI, Security
+from fastapi.security import HTTPBasic
 from fastapi.security.http import HTTPAuthorizationCredentials, HTTPBase
 from fastapi.testclient import TestClient
-from fastapi.security import HTTPBasic
 
 app = FastAPI()
 
@@ -55,6 +55,7 @@ def test_openapi_schema():
         },
     }
 
+
 def test_http_basic_includes_realm():
     app = FastAPI()
     security = HTTPBasic(realm="MyRealm")
@@ -68,4 +69,3 @@ def test_http_basic_includes_realm():
 
     assert response.status_code == 401
     assert response.headers["WWW-Authenticate"] == 'Basic realm="MyRealm"'
-