Python – 各国冠状病毒病例的详细信息

在本文中，我们将了解如何编写脚本来获取冠状病毒病例的详细信息，即仅通过输入国家名称来获取病例总数、康复病例和总死亡人数。

所需模块和安装：

Requests ： Requests 允许您非常轻松地发送 HTTP/1.1 请求。无需手动将查询字符串添加到您的 URL。

pip install requests

Beautiful Soup： Beautiful Soup 是一个库，可以轻松地从网页中抓取信息。它位于 HTML 或 XML 解析器之上，提供用于迭代、搜索和修改解析树的 Pythonic 习惯用法。

pip install beautifulsoup4

In order to make this script we have to do the following :

1. From the name of the country create URL
2. Scrape the data with the help of requests and Beautiful Soup
3. Convert that data into html code.
4. Find the required details and filter them.
5. Save the result in the dictionary.

下面是实现——

Python3

# importing libraries
from bs4 import BeautifulSoup as BS
import requests
  
  
# method to get the info
def get_info(country_name):
      
    # creating url using country name
    url = "https://www.worldometers.info/coronavirus/country/" + country_name + "/"
      
    # getting the request from url 
    data = requests.get(url)
  
    # converting the text 
    soup = BS(data.text, 'html.parser')   
      
    # finding meta info for cases
    cases = soup.find_all("div", class_ = "maincounter-number")
      
    # getting total cases number
    total = cases[0].text
      
    # filtering it
    total = total[1 : len(total) - 2]
       
    # getting recovered cases number
    recovered = cases[2].text
      
    # filtering it
    recovered = recovered[1 : len(recovered) - 1]
      
      
    # getting death cases number
    deaths = cases[1].text
      
    # filtering it
    deaths = deaths[1 : len(deaths) - 1]
      
    # saving details in dictionary
    ans ={'Total Cases' : total, 'Recovered Cases' : recovered,
                                 'Total Deaths' : deaths}
      
    # returning the dictionary
    return ans
   
# setting country name
country_name = "us"
  
# calling the get_info method
us = get_info(country_name)
  
# printing the results for us
print("Cases in United States")
for i, j in us.items():
    print(i + " : " + j)
      
print("----------------------------")  
# setting country name to india
country_name = "india"
  
# calling the get_info method
india = get_info(country_name)
  
# printing the results for us
print("Cases in India")
for i, j in india.items():
    print(i + " : " + j)

输出 ：

Cases in United States
Total Cases : 654,343
Recovered Cases : 56,618
Total Deaths : 33,490
----------------------------
Cases in India
Total Cases : 12,759
Recovered Cases : 1,514
Total Deaths : 423