SolvedStack cluster: starlette:configuration-error

What This Cluster Means

starlette cluster (35 fixes): Misconfiguration, wrong defaults, or incompatible settings that break startup or runtime behavior.

Top Queries / Error Strings

These are the lines developers tend to search during incidents.

Search within this library’s fixes:

Handling of `scope["root_path"]` and `scope["path"]` differs from ASGI spec

#1336 · Kludex/starlette

response headers support custom encoding

#790 · Kludex/starlette

Use `isort` for consistency, and low-footprint pull requests.

#154 · Kludex/starlette

RuntimeError: Got invalid message type on lifespan protocol "http.response.start"

#330 · Kludex/starlette

Support for Multiple Files for One Form Field

#327 · Kludex/starlette

AssertionError with middleware and TemplateResponse

#472 · Kludex/starlette

Session cookie triggers failure on websocket connection upgrade

#483 · Kludex/starlette

Question about Request.Body()

#493 · Kludex/starlette

mypy errors when accessing Request.state

#545 · Kludex/starlette

"url_for" signature prevents use of "name" in path arguments

#608 · Kludex/starlette

StreamingResponse doesn't support PEP-492 asynchronous iterators

#793 · Kludex/starlette

objects defining async __call__ not run/awaited when used in on_startup

#886 · Kludex/starlette

Background Thread created by WebSocketTestSession should exit when close() is called

#947 · Kludex/starlette

Make FileResponse.chunk_size variable

#1100 · Kludex/starlette

TestClient.request does not honor timeout

#1108 · Kludex/starlette

Insufficient input validation of content-type 'multipart/form-data'

#1125 · Kludex/starlette

HTTPConnection::__get_item__ has incorrect type signature

#1117 · Kludex/starlette

RedirectResponse call to `quote_plus` replaces spaces & `%20`'s with `+` character

#1162 · Kludex/starlette

Disconnect event not received when using TestClient

#1247 · Kludex/starlette

Starlette docs has dead links, broken sitemap and missing redirection for http://

#1212 · Kludex/starlette

StaticFiles support for directories other than "statics"

#1265 · Kludex/starlette

Wrong unauthorized WebSocket status code

#1362 · Kludex/starlette

WebSocketRoute does not work with functools.partial

#1355 · Kludex/starlette

Authentication middleware IndexError on instance method

#1334 · Kludex/starlette

Raising Exceptions in sub-applications routes

#1433 · Kludex/starlette

Denying WebSocket connection in WebSocketEndpoint.on_connect leads to Exception

#1560 · Kludex/starlette

Minimum typing-extensions version is not specified

#1474 · Kludex/starlette

middleware causes exceptions to not be raised/handled silently

#1977 · Kludex/starlette

Testclient doesn't accept cookies with domain "testserver" in Python < 3.11

#2152 · Kludex/starlette

middleware causes exceptions to not be raised/handled silently (back again)

#2625 · Kludex/starlette

Python 3.13.0b3: AttributeError: 'functools.partial' object has no attribute '__name__'

#2638 · Kludex/starlette

Breaking change in httpx=0.28.0 for starlette.testclient.TestClient

#2771 · Kludex/starlette

incompatible type and expected "type[_MiddlewareClass[[]]]" [arg-type]

#2912 · Kludex/starlette

Request Header cookie parsing doesn't follow RFC 7540 spec

#2977 · Kludex/starlette

TestClient.__enter__ return type error for subclasses

#2950 · Kludex/starlette

Explore Related Hubs

Jump into library hubs and best-practices playbooks for deeper coverage.

All library hubs FastAPI hub Requests hub Celery hub urllib3 hub Pydantic hub redis-py hub stripe-python hub

FastAPI best practices Requests best practices Celery best practices urllib3 best practices Pydantic best practices redis-py best practices stripe-python best practices

starlette — Configuration error

What This Cluster Means

Top Queries / Error Strings

Explore Related Hubs

Get updates