AttributeError: ResultSet 对象没有属性“find_all" [英] AttributeError: ResultSet object has no attribute 'find_all'

问题描述

我正在尝试复制一个网络抓取代码(来自一个教育网站)，用于从维基百科中获取印度各州的名称.我一直收到AttributeError: ResultSet object has no attribute 'find_all'"错误，因此无法继续.我在这里添加我的代码，希望能找到一些指导和帮助:

I am trying to replicate a web scraping code (from an educational site) for fetching names of Indian States from Wikipedia. I have been getting the "AttributeError: ResultSet object has no attribute 'find_all'" error and hence unable to proceed. I am adding my code here and hoping to find some guidance and help:

#import library to query a website
from urllib.request import urlopen
#the url is stored in a variable called wiki
wiki="https://en.wikipedia.org/wiki/List_of_state_and_union_territory_capitals_in_India"
#open the html page and store it in a variable called page 
page=urlopen(wiki)
print(wiki)
#import the Beautiful soup functions to parse the data returned from the website
from bs4 import BeautifulSoup
#parsing the html page stored in variable page and storing it in beautiful soup #format
soup=BeautifulSoup(page,['lxml','xml'])
print(soup)
#using 'prettify' function to structure the html page
print(soup.prettify())
#storing all the links in a variable
all_links=soup.find_all("a")
for link in all_links:
    print(link.get("href"))
#storing all the tables in a variable
all_tables=soup.find_all("table")
print(all_tables)
#storing required data in a variable
right_table=soup.find_all('table',{'class':'wikitable sortable plainrowheaders'})
print(right_table)
#Generating lists
A=[]
B=[]
C=[]
D=[]
E=[]
F=[]
G=[]
for row in right_table.find_all("tr"):
    cells = row.find_all('td')
    states=row.find_all('th') #To store second column data
    if len(cells)==6: #Only extract table body not heading
        A.append(cells[0].find(text=True))
        B.append(states[0].find(text=True))
        C.append(cells[1].find(text=True))
        D.append(cells[2].find(text=True))
        E.append(cells[3].find(text=True))
        F.append(cells[4].find(text=True))
        G.append(cells[5].find(text=True))

我使用的是 python 3.6 和 Windows 10

I am using python 3.6 and Windows 10

预先感谢您的帮助！

推荐答案

当你打电话给我时，我看到的是:

What i can see is when you call:

right_table=soup.find_all('table',{'class':'wikitable sortable plainrowheaders'})

该命令的输出，即 right_table 包含一个数组.您需要对它的成员调用 find_all(即使它只有一个元素)，而不是整个事物.

the output of this command i.e right_table contains an array. You would need to call find_all on it's members(even though it has one element), not on entire thing.

所以这一行:

for row in right_table.find_all("tr"):

应改为:

for row in right_table[0].find_all("tr"):

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