[英]Writing the news to CSV-file (Python 3, BeautifulSoup)
我希望 Python3.6 將以下代碼的輸出寫入 csv。 像這樣擁有它會非常好:每篇文章都有一行(它是新聞網站),四列包含“標題”、“URL”、“類別”[#Politik 等]、“PublishedAt”。
from bs4 import BeautifulSoup
import requests
website = 'http://spiegel.de/schlagzeilen'
r = requests.get(website)
soup = BeautifulSoup((r.content), "lxml")
div = soup.find("div", {"class": "schlagzeilen-content schlagzeilen-overview"})
for a in div.find_all('a', title=True):
print(a.text, a.find_next_sibling('span').text)
print(a.get('href'))
為了寫入csv,我已經有了這個......
with open('%s_schlagzeilen.csv' % datetime.datetime.now().strftime('%Y-%m-%d_%H-%M-%S.%f'), 'w', newline='',
encoding='utf-8') as file:
w = csv.writer(file, delimiter="|")
w.writerow([...])
..並且需要知道接下來要做什么。 謝謝!! 提前!
您可以將所有需要提取的字段收集到字典列表中,並使用csv.DictWriter
寫入 CSV 文件:
import csv
import datetime
from bs4 import BeautifulSoup
import requests
website = 'http://spiegel.de/schlagzeilen'
r = requests.get(website)
soup = BeautifulSoup((r.content), "lxml")
articles = []
for a in soup.select(".schlagzeilen-content.schlagzeilen-overview a[title]"):
category, published_at = a.find_next_sibling(class_="headline-date").get_text().split(",")
articles.append({
"Title": a.get_text(),
"URL": a.get('href'),
"Category": category.strip(" ()"),
"PublishedAt": published_at.strip(" ()")
})
filename = '%s_schlagzeilen.csv' % datetime.datetime.now().strftime('%Y-%m-%d_%H-%M-%S.%f')
with open(filename, 'w', encoding='utf-8') as f:
writer = csv.DictWriter(f, fieldnames=["Title", "URL", "Category", "PublishedAt"], )
writer.writeheader()
writer.writerows(articles)
請注意我們如何定位類別和“發布於”——我們需要轉到下一個同級元素並用逗號分隔文本,去掉額外的括號。
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