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request+正则表达式爬猫眼,
前端之家小编觉得挺不错的,现在分享给大家,也给大家做个参考。
- import json
- import requests
- from requests.exceptions import RequestException
- import re
- import time
-
- 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>.*?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('result.txt','a',encoding='utf-8') as f:
- f.write(json.dumps(content,ensure_ascii=False) + '\n')
-
- def main(offset):
- url = 'http://maoyan.com/board/4?offset=' + str(offset)
- html = get_one_page(url)
- 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)
转自:http://cuiqingcai.com/