How can I handle errors in Scrapy?

How can I handle errors in Scrapy?

In Scrapy, you can handle errors using the errback parameter in your requests. This allows you to define a callback function that will be called when an error occurs.

Can you give me an example of using errback?

Sure! Here's a simple example:

import scrapy

class MySpider(scrapy.Spider):
    name = 'myspider'

    def start_requests(self):
        yield scrapy.Request('http://example.com', callback=self.parse, errback=self.handle_error)

    def parse(self, response):
        # process the response
        pass

    def handle_error(self, failure):
        self.logger.error(repr(failure))

What types of errors can I handle?

You can handle various types of errors, such as HTTP errors, connection errors, and timeouts. Each type can be managed in your errback function.

Is there a way to retry requests on failure?

Yes, you can use the RetryMiddleware in Scrapy, which automatically retries requests that fail due to certain conditions, like timeouts or HTTP errors.