BeautifulSoup output to .txt file

问题

I am trying to export my data as a .txt file

from bs4 import BeautifulSoup
import requests
import os

import os

os.getcwd()
'/home/folder'
os.mkdir("Probeersel6") 
os.chdir("Probeersel6")
os.getcwd()
'/home/Desktop/folder'
os.mkdir("img")  #now `folder` 

url = "http://nos.nl/artikel/2093082-steeds-meer-nekklachten-bij-kinderen-door-gebruik-tablets.html"
r  = requests.get(url)
soup = BeautifulSoup(r.content)
data = soup.find_all("article", {"class": "article"})

with open(""%s".txt", "wb" %(url)) as file:
    for item in data:
        print item.contents[0].find_all("time", {"datetime": "2016-03-16T09:50:30+0100"})[0].text 
        print item.contents[0].find_all("a", {"class": "link-grey"})[0].text
        print "\n"
        print item.contents[0].find_all("img", {"class": "media-full"})[0]
        print "\n"
        print item.contents[1].find_all("div", {"class": "article_textwrap"})[0].text
        file.write()

what should be put in the:

file.write()

to work?

I am also trying to get the name of the .txt file the same as the url should I do that with a string?

with open(""%s".txt", "wb" %(url)) as file:

url = "http://nos.nl/artikel/2093082-steeds-meer-nekklachten-bij-kinderen-door-gebruik-tablets.html"

回答1:

You should put Inside file.write your content. I'll probably do something like:

#!/usr/bin/python3
#

from bs4 import BeautifulSoup
import requests

url = 'http://nos.nl/artikel/2093082-steeds-meer-nekklachten-bij-kinderen-door-gebruik-tablets.html'
file_name=url.rsplit('/',1)[1].rsplit('.')[0]

r  = requests.get(url)
soup = BeautifulSoup(r.content, 'lxml')
data = soup.find_all('article', {'class': 'article'})


content=''.join('''{}\n{}\n\n{}\n{}'''.format( item.contents[0].find_all('time', {'datetime': '2016-03-16T09:50:30+0100'})[0].text,
                                               item.contents[0].find_all('a', {'class': 'link-grey'})[0].text,
                                               item.contents[0].find_all('img', {'class': 'media-full'})[0],
                                               item.contents[1].find_all('div', {'class': 'article_textwrap'})[0].text,
                                             ) for item in data)

with open('./{}.txt'.format(file_name), mode='wt', encoding='utf-8') as file:
    file.write(content)

回答2:

I was working on a webscraping project, and this issue gave me tons of problems. I tried almost every solution out there that dealt with Python encoding (convert to UTF using string.encode(), convert to ASCII, convert using the 'unicodedata' module, use .decode() and then .encode(), blood sacrifice to Tim Peters, etc etc).

None of the solutions worked all the time, which struck me as very un-Pythonic.

So what I ended up using was the following:

html = bs.prettify()  #bs is your BeautifulSoup object
with open("out.txt","w") as out:
    for i in range(0, len(html)):
        try:
            out.write(html[i])
        except Exception:
            1+1

It's not perfect, but it gave me the best results. When I opened it in a browser, it was able to parse the page properly almost every time.

来源：https://stackoverflow.com/questions/36039919/beautifulsoup-output-to-txt-file