代码 4-1

import requests
import json
url = 'http://www.ptpress.com.cn/bookinfo/getBookListForWS'
return_data = requests.get(url).text # 在需要爬取的URL网页进行HTTP请求
data = json.loads(return_data) # 对HTTP响应的数据JSON化
news = data['data'] # 索引到需要爬取的内容信息
for n in news: # 对索引出来的JSON数据进行遍历和提取
bookName = n['bookName']
author = n['author']
price = n['price']
print ("新书名：",bookName,'\n',"作者：",author,'\n',"价格：",price)
print ('\n')

引入第三方库呗.百度搜能有不少.