如何使用Python和Beautiful Soup从flexbox元素/容器中抓取数据



我正在尝试使用python,美丽的汤和硒从实用程序网站抓取数据。我试图抓取的数据是:时间、原因、状态等。当我运行一个典型的页面请求,解析页面,解析我正在寻找的数据(id="OutageListTable"中的数据(,并打印它时,div 和字符串无处可寻。当我检查页面元素时,数据在那里,但它在 flex 容器中。

这是我正在使用的代码:

from urllib.request import urlopen as uReq
from bs4 import BeautifulSoup as soup
import urllib3
from selenium import webdriver
my_url = 'https://www.pse.com/outage/outage-map'
browser = webdriver.Firefox()
browser.get(my_url)
html = browser.page_source
page_soup = soup(html, features='lxml')
outage_list = page_soup.find(id='OutageListTable')
print(outage_list)
browser.quit()

如何检索弹性/弹性框容器中的信息?我没有在网上找到任何资源来帮助我解决这个问题。

你想太多了。首先,没有柔性板容器。这是分配正确的div 类的简单情况。你应该看看divclass_=col-xs-12 col-sm-6 col-md-4 listView-container

from bs4 import BeautifulSoup
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.support.ui import WebDriverWait
from selenium.common.exceptions import TimeoutException
from time import sleep
# create object for chrome options
chrome_options = Options()
base_url = 'https://www.pse.com/outage/outage-map'
chrome_options.add_argument('disable-notifications')
chrome_options.add_argument('--disable-infobars')
chrome_options.add_argument('start-maximized')
chrome_options.add_argument('user-data-dir=C:\Users\username\AppData\Local\Google\Chrome\User Data\Default')
# To disable the message, "Chrome is being controlled by automated test software"
chrome_options.add_argument("disable-infobars")
# Pass the argument 1 to allow and 2 to block
chrome_options.add_experimental_option("prefs", { 
"profile.default_content_setting_values.notifications": 2
})
# invoke the webdriver
browser = webdriver.Chrome(executable_path = r'C:/Users/username/Documents/playground_python/chromedriver.exe',
options = chrome_options)
browser.get(base_url)
delay = 5 #secods
while True:
try:
WebDriverWait(browser, delay)
print ("Page is ready")
sleep(5)
html = browser.execute_script("return document.getElementsByTagName('html')[0].innerHTML")
#print(html)
soup = BeautifulSoup(html, "html.parser")
for item_n in soup.find_all('div', class_='col-xs-12 col-sm-6 col-md-4 listView-container'):
for item_n_text in item_n.find_all(name="span"):
print(item_n_text.text)
except TimeoutException:
print ("Loading took too much time!-Try again")
# close the automated browser
browser.close()
Cause: 
Accident
Status: 
Crew assigned
Last updated: 
06/02 11:00 PM
9. Woodinville
Start time: 
06/02 08:29 PM
Est. restoration time: 
06/03 03:30 AM
Customers impacted: 
2
Cause: 
Under Investigation
Status: 
Crew assigned
Last updated: 
06/03 12:15 AM
Page is ready
1. Bellingham
Start time: 
06/02 06:09 PM
Est. restoration time: 
06/03 06:30 AM
Customers impacted: 
1
Cause: 
Trees/Vegetation
Status: 
Crew assigned
Last updated: 
06/02 11:50 PM
2. Deming
Start time: 
06/02 07:10 PM
Est. restoration time: 
06/03 03:30 AM

数据通过Javascript动态加载。您可以使用requests模块来获取数据。

例如:

import json
import requests
url = 'https://www.pse.com/api/sitecore/OutageMap/AnonymoussMapListView'
data = requests.get(url).json()
# uncomment this to print all data:
#print(json.dumps(data, indent=4))
for d in data['PseMap']:
print('{} - {}'.format(d['DataProvider']['PointOfInterest']['Title'], d['DataProvider']['PointOfInterest']['MapType']))
for info in d['DataProvider']['Attributes']:
print(info['Name'], info['Value'])
print('-' * 80)

指纹:

Bellingham - Outage
Start time 06/02 06:09 PM
Est. restoration time 06/03 06:30 AM
Customers impacted 1
Cause Trees/Vegetation
Status Crew assigned
Last updated 06/02 11:50 PM
--------------------------------------------------------------------------------
Deming - Outage
Start time 06/02 07:10 PM
Est. restoration time 06/03 03:30 AM
Customers impacted 568
Cause Accident
Status Repair crew onsite
Last updated 06/02 11:50 PM
--------------------------------------------------------------------------------
Everest - Outage
Start time 06/02 10:42 AM
Customers impacted 4
Cause Scheduled Outage
Status Repair crew onsite
Last updated 06/02 10:50 AM
--------------------------------------------------------------------------------
Kenmore - Outage
Start time 06/02 09:59 PM
Est. restoration time 05/29 01:00 AM
Customers impacted 2
Cause Scheduled Outage
Status Repair crew onsite
Last updated 06/02 10:05 PM
--------------------------------------------------------------------------------
Kent - Outage
Start time 06/02 06:43 PM
Est. restoration time To Be Determined
Customers impacted 26
Cause Car/Equip Accident
Status Waiting for repairs
Last updated 06/02 10:15 PM
--------------------------------------------------------------------------------
Kent - Outage
Start time 06/02 10:09 PM
Est. restoration time To Be Determined
Customers impacted 13
Cause Under Investigation
Status Repair crew onsite
Last updated 06/02 10:15 PM
--------------------------------------------------------------------------------
Northwest Bellevue - Outage
Start time 06/02 11:28 PM
Est. restoration time To Be Determined
Customers impacted 14
Cause Under Investigation
Status Repair crew onsite
Last updated 06/02 11:30 PM
--------------------------------------------------------------------------------
Pacific - Outage
Start time 06/02 06:19 PM
Est. restoration time 06/03 02:30 AM
Customers impacted 3
Cause Accident
Status Crew assigned
Last updated 06/02 11:00 PM
--------------------------------------------------------------------------------
Woodinville - Outage
Start time 06/02 08:29 PM
Est. restoration time 06/03 03:30 AM
Customers impacted 2
Cause Under Investigation
Status Crew assigned
Last updated 06/03 12:15 AM
--------------------------------------------------------------------------------

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