import scrapy


class DemoSpider(scrapy.Spider):
    name = "demo"


    def start_requests(self):
        urls = [
            'http://httpbin.org/ip',
            'http://httpbin.org/ip',
            'http://httpbin.org/headers',
        ]
        for url in urls:
            yield scrapy.Request(url=url, callback=self.parse)

    def parse(self, response):
        self.log('{}'.format(response.body))