From f82a08b50017d148b12bf8157ba313d32b6e0fbe Mon Sep 17 00:00:00 2001
From: Adeev Mardia <71126451+adeev-mardia@users.noreply.github.com>
Date: Tue, 28 Jul 2026 15:28:09 +0530
Subject: [PATCH 1/2] fix: handle non-IANA HTTP status codes in generated
 clients

Add try/except in _build_response so that non-IANA status codes
(e.g. 520 Cloudflare, 561 AWS WAF, 499 nginx) fall back to raw int
instead of raising ValueError from HTTPStatus().

Fixes #1442
---
 openapi_python_client/templates/endpoint_module.py.jinja | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/openapi_python_client/templates/endpoint_module.py.jinja b/openapi_python_client/templates/endpoint_module.py.jinja
index 63e617778..5c5cd6574 100644
--- a/openapi_python_client/templates/endpoint_module.py.jinja
+++ b/openapi_python_client/templates/endpoint_module.py.jinja
@@ -32,7 +32,7 @@ def _get_kwargs(
         {% if endpoint.path_parameters %}
         "url": "{{ endpoint.path }}".format(
         {%- for parameter in endpoint.path_parameters -%}
-        {{parameter.python_name}}=quote(str({{parameter.python_name}}), safe=""),
+        {{parameter.python_name}}=\quote(str({{parameter.python_name}}), safe=\"\"),
         {%- endfor -%}
         ),
         {% else %}
@@ -99,8 +99,12 @@ def _parse_response(*, client: AuthenticatedClient | Client, response: httpx.Res
 
 
 def _build_response(*, client: AuthenticatedClient | Client, response: httpx.Response) -> Response[{{ return_string }}]:
+    try:
+        status_code = HTTPStatus(response.status_code)
+    except ValueError:
+        status_code = response.status_code
     return Response(
-        status_code=HTTPStatus(response.status_code),
+        status_code=status_code,
         content=response.content,
         headers=response.headers,
         parsed=_parse_response(client=client, response=response),

From 0f8c7f86c768fd47173e6539518df71754d40a81 Mon Sep 17 00:00:00 2001
From: Adeev Mardia <71126451+adeev-mardia@users.noreply.github.com>
Date: Tue, 28 Jul 2026 15:28:10 +0530
Subject: [PATCH 2/2] fix: handle non-IANA HTTP status codes in generated
 clients

Widen Response.status_code type from HTTPStatus to HTTPStatus | int
so generated clients don't crash with ValueError on vendor-specific
status codes like 520 (Cloudflare), 561 (AWS WAF), or 499 (nginx).

Fixes #1442
---
 openapi_python_client/templates/types.py.jinja | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/openapi_python_client/templates/types.py.jinja b/openapi_python_client/templates/types.py.jinja
index f74db0ad7..a36465f5a 100644
--- a/openapi_python_client/templates/types.py.jinja
+++ b/openapi_python_client/templates/types.py.jinja
@@ -44,7 +44,7 @@ T = TypeVar("T")
 class Response(Generic[T]):
     """ A response from an endpoint """
 
-    status_code: HTTPStatus
+    status_code: HTTPStatus | int
     content: bytes
     headers: MutableMapping[str, str]
     parsed: T | None