Method start

scrapy/commands/parse.py:260–261

(spider: Spider)

                logger.error("Unable to find spider for: %(url)s", {"url": url})

        async def start(spider: Spider) -> AsyncIterator[Any]:
            yield self.prepare_request(spider, Request(url), opts)

        if self.spidercls:
            self.spidercls.start = start  # type: ignore[assignment,method-assign]