Python 无法使用beautifulsoup在网站上刮表
我正试图刮这张桌子: 这是我的密码:Python 无法使用beautifulsoup在网站上刮表,python,beautifulsoup,Python,Beautifulsoup,我正试图刮这张桌子: 这是我的密码: import requests from bs4 import BeautifulSoup import csv root_url = "https://www.coingecko.com/en/coins/recently_added" html = requests.get(root_url) soup = BeautifulSoup(html.text, 'html.parser') paging = soup.find(&qu
import requests
from bs4 import BeautifulSoup
import csv
root_url = "https://www.coingecko.com/en/coins/recently_added"
html = requests.get(root_url)
soup = BeautifulSoup(html.text, 'html.parser')
paging = soup.find("div",{"class":"row no-gutters tw-flex flex-column flex-lg-row tw-justify-end mt-2"}).find("ul",{"class":"pagination"}).find_all("a")
start_page = paging[1].text
last_page = paging[len(paging)-2].text
#
# outfile = open('gymlookup.csv','w', newline='')
# writer = csv.writer(outfile)
# writer.writerow(["Name", "Address", "Phone"])
pages = list(range(1,int(last_page)+1))
for page in pages:
url = 'https://www.coingecko.com/en/coins/recently_added?page=%s' %(page)
html = requests.get(url)
soup = BeautifulSoup(html.text, 'html.parser')
#print(soup.prettify())
print ('Processing page: %s' %(page))
coins = soup.findAll("div",{"class":"coingecko-table"})
for element in coins:
coin = element.find(class_='coin-name text-left tablesorter-header tablesorter-headerUnSorted')
price = element.find(class_='price text-right sorter-numeric tablesorter-header tablesorter-headerUnSorted')
print(coin,price)
# hr = element.find('change1h').text
# last_added = element.find('last_added').text
# writer.writerow([coin, price, hr,last_added])
#
# outfile.close()
print('Done')
印刷品(硬币、价格)无法印刷任何东西。不知道为什么,欢迎任何帮助:)您可以使用
Selenium
:
from selenium import webdriver
import time
from bs4 import BeautifulSoup
options = webdriver.ChromeOptions()
options.add_argument('--headless')
options.add_argument('--no-sandbox')
options.add_argument('--disable-dev-shm-usage')
url='https://www.coingecko.com/en/coins/recently_added?page=1'
wd = webdriver.Chrome('chromedriver',options=options)
wd.get(url)
time.sleep(2) # sleep for a few seconds to allow loading the data
coin = BeautifulSoup(wd.page_source)
for element in coin:
coin = element.find(class_='coin-name text-left tablesorter-header tablesorter-headerUnSorted')
price = element.find(class_='price text-right sorter-numeric tablesorter-header tablesorter-headerUnSorted')
print(coin,price)
这将输出:
<th aria-disabled="false" aria-label="Coin: No sort applied, activate to apply a descending sort" aria-sort="none" class="coin-name text-left tablesorter-header tablesorter-headerUnSorted" data-column="2" role="columnheader" scope="col" style="user-select: none;" tabindex="0" unselectable="on">
Coin
</th> <th aria-disabled="false" aria-label="Price: No sort applied, activate to apply a descending sort" aria-sort="none" class="price text-right sorter-numeric tablesorter-header tablesorter-headerUnSorted" data-column="3" role="columnheader" scope="col" style="user-select: none;" tabindex="0" unselectable="on">
Price
</th>
硬币
价格
只需使用pandas
即可获取表格数据
以下是方法:
import pandas as pd
import requests
url = "https://www.coingecko.com/en/coins/recently_added?page=1"
df = pd.read_html(requests.get(url).text, flavor="bs4")
df = pd.concat(df).drop(["Unnamed: 0", "Unnamed: 1"], axis=1)
df.to_csv("your_table.csv", index=False)
输出:
Coin_list
['Revolt',
'StarShip',
'Panda Finance',....]
Price_list
['$0.00003005',
'$0.188834',
'$0.00000071',...]
以下是从一个页面获取数据进行分页的代码,您已经完成了分页,因此只需要另一个循环
import requests
from bs4 import BeautifulSoup
import csv
root_url = "https://www.coingecko.com/en/coins/recently_added?page=1"
html = requests.get(root_url)
soup = BeautifulSoup(html.text, 'html.parser')
coin_lst=[]
price_lst=[]
coins = soup.findAll("div",{"class":"coingecko-table"})
for element in coins:
coin=element.find_all("td",attrs={"class":"py-0 coin-name"})
price=element.find_all("td",attrs={"class":"td-price price text-right"})
for c in range(len(coin)):
coin_lst.append(coin[c]["data-text"])
price_lst.append(price[c].text.strip("\n"))
输出:
Coin_list
['Revolt',
'StarShip',
'Panda Finance',....]
Price_list
['$0.00003005',
'$0.188834',
'$0.00000071',...]
为什么不使用API()?他们没有用于检索最近添加的硬币的端点。我猜数据是添加的,并且是动态的,因此
beautifulsoup
无法确定输出数据似乎不是动态的。我只想拍一张表的快照这太棒了,我该如何解决分页问题呢?只需在页面中循环,不断向列表中添加数据帧,然后将所有数据帧连接到一个列表中。