TypeError: 'NoneType' object is not subscriptable

How do you use Sentry?

Sentry Saas (sentry.io)

Version

1.10.0

Steps to Reproduce

Just updated from 1.9.5 to 1.10.0 and got:

self = <starlette.responses.StreamingResponse object at 0x156348d00>, receive = <function _enable_span_for_middleware.<locals>._create_span_call.<locals>._sentry_receive at 0x158981870>

    async def listen_for_disconnect(self, receive: Receive) -> None:
        while True:
            message = await receive()
>           if message["type"] == "http.disconnect":
E           TypeError: 'NoneType' object is not subscriptable

../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/starlette/responses.py:234: TypeError

I integrate sentry as follows:

import sentry_sdk
from fastapi import FastAPI
from sentry_sdk.integrations.fastapi import FastApiIntegration
from sentry_sdk.integrations.starlette import StarletteIntegration

from ..config import env

app = FastAPI(openapi_url=None)

try:
    sentry_sdk.init(
        dsn=env.SENTRY_DSN,
        traces_sample_rate=1.0,
        environment=env.ENV,
        integrations=[
            StarletteIntegration(),
            FastApiIntegration(),
        ],
    )
except Exception:
    # pass silently if the Sentry integration failed
    pass

The whole list:

../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/httpx/_client.py:1751: in get
    return await self.request(
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/httpx/_client.py:1527: in request
    return await self.send(request, auth=auth, follow_redirects=follow_redirects)
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/sentry_sdk/integrations/httpx.py:88: in send
    rv = await real_send(self, request, **kwargs)
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/httpx/_client.py:1614: in send
    response = await self._send_handling_auth(
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/httpx/_client.py:1642: in _send_handling_auth
    response = await self._send_handling_redirects(
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/httpx/_client.py:1679: in _send_handling_redirects
    response = await self._send_single_request(request)
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/httpx/_client.py:1716: in _send_single_request
    response = await transport.handle_async_request(request)
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/httpx/_transports/asgi.py:152: in handle_async_request
    await self.app(scope, receive, send)
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/fastapi/applications.py:269: in __call__
    await super().__call__(scope, receive, send)
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/sentry_sdk/integrations/starlette.py:322: in _sentry_patched_asgi_app
    return await middleware(scope, receive, send)
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/sentry_sdk/integrations/asgi.py:139: in _run_asgi3
    return await self._run_app(scope, lambda: self.app(scope, receive, send))
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/sentry_sdk/integrations/asgi.py:188: in _run_app
    raise exc from None
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/sentry_sdk/integrations/asgi.py:183: in _run_app
    return await callback()
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/starlette/applications.py:124: in __call__
    await self.middleware_stack(scope, receive, send)
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/sentry_sdk/integrations/starlette.py:127: in _create_span_call
    await old_call(app, scope, new_receive, new_send, **kwargs)
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/starlette/middleware/errors.py:184: in __call__
    raise exc
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/starlette/middleware/errors.py:162: in __call__
    await self.app(scope, receive, _send)
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/sentry_sdk/integrations/starlette.py:127: in _create_span_call
    await old_call(app, scope, new_receive, new_send, **kwargs)
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/starlette/middleware/base.py:69: in __call__
    await response(scope, receive, send)
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/starlette/responses.py:260: in __call__
    await wrap(partial(self.listen_for_disconnect, receive))
../../../../Library/Caches/pypoetry/virtualenvs/python-embeddings-service-TzypkFmU-py3.10/lib/python3.10/site-packages/starlette/responses.py:256: in wrap
    await func()
_ _ _ _ _ _ _ _ _ _ _ _ _

Expected Result

Sentry SDK should work when executing tests.

Actual Result

The SDK runs smoothly when starting the fastpi server, but if fails big time when executing tests. No errors with 1.9.5 though

[antonpirker]

Thanks for all the input! ❤️

We have a bugfix on the way, but I guess it will not be released today, but on Monday. (Because I want to add more tests and catch more edge cases so that we future proof the code)

[tonal]

Downgrade to sentry-sdk-1.9.10 work