python3.6抓取出现TypeError: cannot use a string pattern on a bytes-like ob...
import re
import requests
from requests.exceptions import RequestException
import json
def get_one_page(url):
try:
response = requests.get(url)
if response.status_code == 200:
return response.content
return None
except RequestException:
return None
def parse_page_html(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('result.txt','a',encoding='utf-8') as f:
f.write(json.dumps(content,ensure_ascii=False)+'\n')
f.close()
def main():
url = 'http://maoyan.com/board/4?'
html = get_one_page(url)
for item in parse_page_html(html):
write_to_file(item)
if __name__ == '__main__':
main()
如果没有以上红色代码，会出现TypeError: cannot use a string pattern on a bytes-like object，只需要加上html = html.decode('utf-8')即可
