Python爬虫爬取猫眼电影热映口碑榜

通过学习后的简单的爬取练习。

import requests
import re
import json
import time

def get_one_page(url):
    headers = {
    
    
            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36'
        }
    response = requests.get(url, headers=headers)
    if response.status_code == 200:
        return response.text
    else:
        None

def parse_page(html):
    """解析页面"""
    pattern = re.compile('<dd>.*?board-index.*?>(.*?)</i>.*?name.*?a.*?>(.*?)</a>.*?star.*?>(.*?)</p>.*?releasetime.*?>(.*?)</p>.*?integer.*?>(.*?)</i>.*?fraction.*?>(.*?)</i>.*?</dd>', re.S)
    items = re.findall(pattern, html)
    print(items)
    for item in items:
        yield {
    
    
            'index': item[0],
            'title': item[1].strip(),
            'actor': item[2].strip()[3:] if len(item[2]) > 3 else '',
            'time': item[3].strip()[5:] if len(item[3]) > 5 else '',
            'score': item[4].strip() + item[5].strip()
        }

def write_file(content):
    with open('热映口碑榜.txt', 'a', encoding='utf-8') as f:
        f.write(json.dumps(content, ensure_ascii=False)+'\n')


url = 'https://maoyan.com/board/7'
html = get_one_page(url)

if __name__ == '__main__':
    time.sleep(1)
    for item in parse_page(html):
        write_file(item)