Reading新信息與urllib的

Question

我得到了下面的代碼：

import urllib 
import re 

def worldnews(): 
    count = 0 
    html = urllib.urlopen("https://www.reddit.com/r/worldnews/").readlines() 

    lines = html 
    for line in lines: 
     if "Paris" or "Putin" in line: 
      count = count + 1 
      print line  

    print "Totaal gevonden: ", count 
    print "----------------------" 

worldnews() 

我如何才能找到在標題與巴黎或Puttin在該網頁上的所有reddit的崗位。有沒有辦法將這個標題的帖子打印到控制檯？當我運行這個時候，我得到了很多html代碼。

Answer 1

在Python中使用HTML的最佳方式是BeautifulSoup。因此，您需要下載並查看文檔，以瞭解如何完成您要求的內容。不過，我給你開了一個開端：

import urllib 
from bs4 import BeautifulSoup 

def worldnews(): 
    count = 0 
    html = urllib.urlopen("https://www.reddit.com/r/worldnews/") 
    soup = BeautifulSoup(html,"lxml") 
    titles = soup.find_all('p',{'class':'title'}) 
    for i in titles: 
     print(i.text) 

worldnews() 

當這個運行時，它給出了一個輸出看起來像這樣：在頁面上所有的標題

Paris attacks ringleader dead - French officials (bbc.com) 
Company which raised price of AIDS drug by 5500% reports $14m quarterly losses. (pinknews.co.uk) 
Syria/IraqSyrian man kills judge at ISIS Sharia Court for beheading his brother (en.abna24.com) 
Putin Puts $50 Million Bounty on Heads of Metrojet Bombers (fortune.com) 

等。從這裏你應該能夠輕鬆搞清楚如何編碼其餘部分。 :-)