python应用-爬取猫眼电影top100

Posted 2021-11-03 v01cano

import requests
import re
import json
import time
from requests.exceptions import RequestException


def get_one_page(url):
    try:
        headers = {
            'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (Khtml, like Gecko) Chrome/73.0.3683.103 Safari/537.36'
        }
        response = requests.get(url,headers=headers)
        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].strip(),
            'actor':item[3].strip()[3:] if len(item[3]) > 3 else '',
            'time':item[4].strip()[5:] if len(item[4]) > 5 else '',
            'score':item[5].strip() + item[6].strip()
        }

def write_to_file(content):
    with open('result.txt','a',encoding='utf-8') as f:
        f.write(json.dumps(content,ensure_ascii=False)+'\n')
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(offset=i*10)
        time.sleep(1)