课时15 爬取一页商品数据

from bs4 import BeautifulSoup
import requests
import time
import re


def get_links_from(who_sells):
    urls = []
    list_view = 'http://bj.58.com/pbdn/{}/pn2/'.format(str(who_sells))

    wb_data = requests.get(list_view)
    soup = BeautifulSoup(wb_data.text,'lxml')
    for link in soup.select('td.t a.t'):
        pageurl = link.get('href').split('?')[0]
        if 'pingbandiannao' in pageurl:
            urls.append(pageurl)
        else:
            pass
        print(urls)
    return urls



def get_views_from(url):
    id = url.split('/')[-1].strip('x.shtml')
    api = 'http://jst1.58.com/counter?infoid={}'.format(id)
    js = requests.get(api)
    views = js.text.split('=')[-1]
    return views

def get_item_info(who_sells=0):

    urls = get_links_from(who_sells)
    for url in urls:
        wb_data = requests.get(url)
        soup = BeautifulSoup(wb_data.text,'lxml')
        data = {
            'title':soup.title.text,
            'price':soup.select('.price')[0].text,
            'area' :list(soup.select('.c_25d')[0].stripped_strings) if soup.find_all('span','c_25d') else None,
            'date' :soup.select('.time')[0].text,
            'cate' :'个人' if who_sells == 0 else '商家',
            'views':get_views_from(url)
        }
        print(data)

get_links_from(0)