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python - Python“返回self.attrs [key]”错误

问题描述

我正在尝试编写一个非常简单的 python/美丽的汤脚本

from urllib.request import urlopen as uReq
from bs4 import BeautifulSoup as soup 
my_url = 'https://www.travelok.com/listings/sid.1?last_region=&searchFormText=camping'
uclient = uReq(my_url)
page_html = uclient.read()
uclient.close()
filename = "oklahoma_state_parks.csv"
f = open(filename,"w")
headers = "park_name, park_phone, \n"
f.write (headers)
page_soup = soup(page_html, 'html.parser')
containers = page_soup.findAll("article", {"class":"search-result"})

这是测试代码，以确保它在这里工作。 

parkinfo_name_test = containers[0].h2.text
parkinfo_phone_test = containers[0].address.div.text

parkinfo_name_test_2 = containers[2].h2.text
parkinfo_phone_test_2 = containers[2].address.div.text

如果我将代码运行到这一点（此处的所有内容），它就可以正常工作。我可以打印（parkinfo_name_test）并获得第一个结果。但是当我尝试循环它时 - 它失败了。当我尝试使用代码运行它时，我收到一条错误消息： 

for container in containers:
    parkinfo_name = container[0].h2.text
    parkinfo_phone = container[0].address.div.text 

    print ("parkinfo_name: " + parkinfo_name)
    print ("parkinfo_phone " + parkinfo_phone)

    f.write (parkinfo_name + "," + parkinfo_phone + "\n")
    f.close ()

这是我收到的错误消息：
Traceback (last recent call last): File "oklahoma_state_parks.py", line 43, in parkinfo_name = container[0].h2.text
File "C:\Users\Myname\AppData\Local\ Programs\Python\Python37-32\lib\site-packages\beautifulsoup4-4.6.1-py3.7.egg\bs4\element.py"，第 1071 行，在 __getitem__return self.attrs[key] KeyError: 0

标签： pythonweb-scraping

解决方案

问题似乎在这里：

for container in containers:
    parkinfo_name = container[0].h2.text

尝试这样做：

for container in containers:
    parkinfo_name = container.h2.text
    parkinfo_phone = container.address.div.text 

    print ("parkinfo_name: " + parkinfo_name)
    print ("parkinfo_phone " + parkinfo_phone)

    f.write (parkinfo_name + "," + parkinfo_phone + "\n")
    f.close ()

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