Function _send_catch_log_deferred

scrapy/utils/signal.py:98–138

(
    signal: TypingAny,
    sender: TypingAny,
    *arguments: TypingAny,
    **named: TypingAny,
)

@inlineCallbacks
def _send_catch_log_deferred(
    signal: TypingAny,
    sender: TypingAny,
    *arguments: TypingAny,
    **named: TypingAny,
) -> Generator[Deferred[TypingAny], TypingAny, list[tuple[TypingAny, TypingAny]]]:
    def logerror(failure: Failure, recv: TypingAny) -> Failure:
        if dont_log is None or not isinstance(failure.value, dont_log):
            logger.error(
                "Error caught on signal handler: %(receiver)s",
                {"receiver": recv},
                exc_info=failure_to_exc_info(failure),
                extra={"spider": spider},
            )
        return failure

    dont_log = named.pop("dont_log", None)
    spider = named.get("spider")
    dfds: list[Deferred[tuple[TypingAny, TypingAny]]] = []
    for receiver in liveReceivers(getAllReceivers(sender, signal)):
        d: Deferred[TypingAny] = _maybeDeferred_coro(
            robustApply,
            True,
            receiver,
            *arguments,
            signal=signal,
            sender=sender,
            **named,
        )
        d.addErrback(logerror, receiver)
        # TODO https://pylint.readthedocs.io/en/latest/user_guide/messages/warning/cell-var-from-loop.html
        d2: Deferred[tuple[TypingAny, TypingAny]] = d.addBoth(
            lambda result: (
                receiver,  # pylint: disable=cell-var-from-loop  # noqa: B023
                result,
            )
        )
        dfds.append(d2)

    results = yield DeferredList(dfds)
    return [result[1] for result in results]


async def send_catch_log_async(