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from __future__ import annotations
import logging
from typing import TYPE_CHECKING
import scrapy
from scrapy.crawler import AsyncCrawlerProcess
if TYPE_CHECKING:
from asyncio import Task
class AsyncioReactorSpider(scrapy.Spider):
name = "asyncio_reactor"
custom_settings = {
"TWISTED_REACTOR": "twisted.internet.selectreactor.SelectReactor",
}
def log_task_exception(task: Task) -> None:
try:
task.result()
except Exception:
logging.exception("Crawl task failed") # noqa: LOG015
process = AsyncCrawlerProcess()
task = process.crawl(AsyncioReactorSpider)
task.add_done_callback(log_task_exception)
process.start()
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