Parse PyCon speakers

spider_pycon.py

import scrapy
from pycon.items import PyconItem

class HumanSpider(scrapy.Spider):
    start_urls = [
        'http://pyvideo.org/speakers.html'
    ]
    name = 'pycon'



    def parse(self, response):
        for talk in response.css('.row a'):
            href = talk.css('a::attr(href)').extract_first()
            full_url = response.urljoin(href)

            yield scrapy.Request(full_url, callback=self.parse_page)
    def parse_page(self, response):
        for link in response.css('div.container'):
            href=link.css('a::attr(href)').extract_first()
            full_url=response.urljoin(href)
            yield response.follow(href, self.parse_book)



    def parse_book(self, response):
        title = response.css('h2.entry-title a::text').extract_first()
        speaker = response.css('a.fn::text').extract_first()
        description = response.css('.entry-content p::text').extract()
        event = response.css('.details-content a::text').extract_first()
        links = response.css('.details-content a::attr(href)').extract()

        yield PyconItem(title=title, description=description, speaker=speaker, event=event,links=links)