Python 3.7 BeautifullSoup soup.find错误-find()没有关键字参数

时间:2019-05-30 13:43:14

标签: python python-3.x beautifulsoup

我从URL获得了以下HTML:

<h4>
   \r\n                            \r\n\r\n
   <a href="/l">
      \r\n    <!-- mp_trans_rt_start id="1" args="as" 1 -->\r\n    <span class="brandWrapTitle">\r\n        <span class="productdescriptionbrand">Mxxx</span>\r\n    </span>\r\n    <span class="nameWrapTitle">\r\n        <span class="productdescriptionname">Axxxname</span>\r\n    </span>\r\n    <!-- mp_trans_rt_end 1 -->\r\n
   </a>
   \r\n\r\n                        
</h4>

我试图使用python查找类名:

  import urllib.request
from bs4 import BeautifulSoup
url = "https://link"
user_agent = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.47 Safari/537.36'
urlwithagent = urllib.request.Request(url,headers={'User-Agent': user_agent})
response = urllib.request.urlopen(urlwithagent)
soup = response.read()
product = soup.find("h4", attrs ={"class=": "productdescriptionname"})
print (product)

一切都完美,直到行:

product = soup.find("h4", attrs ={"class=": "productdescriptionname"})

出现类似错误

find() takes no keyword arguments

我不知道如何解决它-周围有很多信息,但是没有用:/

1 个答案:

答案 0 :(得分:3)

在使用BeautifulSoup之前,您需要将其转换为find对象,否则它将使用str.find

例如:

soup = BeautifulSoup(response.read(), "html.parser")
product = soup.find("h4", attrs ={"class": "productdescriptionname"})
print (product)