Douban Movie Review

import requests
from requests import exceptions
import re
import json
def get_one_page(url):
    try:
        response = request.get(url)
        if response.status_code == 200:
            return response.text
        return None
    except:
        return None
    
def parse_one_page(html):
    pattern = re.compile('<table width=".*<div cass="pl2">.*?>(.*?)</a>.*?class="pl">(.*?)</p>'
                        + '.*?<span class="rating_nums">(.*?)</span>.*?class=“pl”>(.*?)</span>', re.S)
    items = re.findall(pattern, html)
    for item in items:
        yield{
            'title': item[0].split("/")[0],
            'time': item[1].split("/")[0],
            'actor': ietm[1].split("/")[1:],
            'average': item[2],
            'content': item[3],
        }
        
def write_to_file(content):
    with open('2018.txt','a',encoding='utf-8') as f:
        f.write(json.dumps(content, ensure_ascii=False) + '\n')
        f.close()

def main(start):
    url = 'https://movie.douban.com/tag/2018/start='+str(start)+'&type=T'
    html = get_one_page(url)
    for item in parse_one_page(html):
        print(item)
        write_to_file(item)
        main(i*20)
if __name__ == '__main__':
    for i in range(84,194):
        main(i*20)