Reptile practice

import requests
import json
def single_page_comment(link):
    headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3314.0 Safari/537.36 SE 2.X MetaSr 1.0',
               'Host': 'movie.douban.com'


               }
    r=requests.get(link,headers=headers)
    json_string=r.text
    json_string=json_string[json_string.find('{'):-2]
    json_data=json.loads(json_string)
    comment_list=json_data['results']['parents']
    for eachone in comment_list:
        message=eachone['content']
        print(message)
for page in range(1,4):
    link1= "https://api-zero.livere.com/v1/comments/list?callback=jQuery112403473268296510956_1531502963311&limit=10&offset="
    link2 = "&repSeq=4272904&requestPath=%2Fv1%2Fcomments%2Flist&consumerSeq=1020&livereSeq=28583&smartloginSeq=5154&_=1531502963316"
    page_str=str(page)
    link=link1+page_str+link2
    print(link)
    single_page_comment(link)