python use request and re to get and parse web page

import requests
#from multiprocessing import Pool
from requests.exceptions import RequestException
import re
import json

def get_one_page(url):
    try:
        response = requests.get(url)
        if response.status_code ==200:
            return response.text
        return None
    except RequestException:
        return None

def parse_one_page(html):
    pattern = re.compile('<dd>.*?board-index.*?>(\d+)</i>.*?data-src="(.*?)".*?name"><a'+
                        '.*?>(.*?)</a>.*?star">(.*?)</p>.*?releasetime">(.*?)</p>'+
                        '.*?integer">(.*?)</i>.*?fraction">(.*?)</i>.*?</dd>',re.S)
    items = re.findall(pattern,html)
    for item in items:
        yield {
            'index': item[0],
            'image': item[1],
            'title': item[2],
            'actor': item[3].strip()[3:],
            'time' : item[4].strip()[5:],
            'score' : item[5] +  item[6]                   
        }
def write_to_file(content):
    with open('c://test/result.txt','a',encoding='utf-8') as f:
        f.write(json.dumps(content,ensure_ascii=False) + '\n')
        f.close()
   
def main(offset):
    url = 'https://maoyan.com/board/4?offset=' + str(offset)
    html = get_one_page(url)
    #print(html)
    for item in parse_one_page(html):
          print(item)
          write_to_file(item) 
if __name__ ==    '__main__':
    for i  in range(10):
      main(i*10)
    #pool = Pool()
    #pool.map(main, [i*10 for i in range(10)] )