electronicsspider.py

from scrapy.spiders import CrawlSpider, Rule
from scrapy.linkextractors import LinkExtractor

class ElectronicsSpider(CrawlSpider):
    name = "electronics"
    allowed_domains = ["www.olx.com.pk"]
    start_urls = [
        'https://www.olx.com.pk/computers-accessories/',
        'https://www.olx.com.pk/tv-video-audio/',
        'https://www.olx.com.pk/games-entertainment/'
    ]

    rules = (
        Rule(LinkExtractor(allow=(), restrict_css=('.pageNextPrev',)),
             callback="parse_item",
             follow=True),)

    def parse_item(self, response):
        print('Processing..' + response.url)