我正在尝试编写一个小的网络应用程序,它返回涉及关键字的新闻文章的情绪。
我使用了 TextBlob 和 Newspaper3K python 3 包。我试图将 Newspaper3K 的 url 字符串作为 Google 新闻搜索查询的结果,但报纸包似乎只是重定向到 Google 新闻的“主页”。
有什么方法可以获取包含某个关键字的报纸文章列表?另外,报纸是否可以遍历页面?
以下是我的代码:
from textblob import TextBlob
import newspaper
#keyword = input("Please enter the keyword: ")
keyword = "Apple" #for testing only
keyword_lowercase = keyword.lower()
search_string = "" # only for google news
split_keyword = keyword.split()
for i in range(len(split_keyword)):
search_string += split_keyword[i]
if i != len(split_keyword)-1:
search_string += '+'
def google_news_site(search_query):
prefix = 'http://news.google.com/news?q='
return prefix+search_string
#Currently for news.google.com only
url_string = google_news_site(search_string)
paper = newspaper.build(url_string, memoize_articles=False)
def sentiment(text):
return TextBlob(text).sentiment.polarity
current_sum = 0.0
relevant_article_count = 0
for article in paper.articles:
print(article.url)
article_text = article.text
article_text_lowercase = article_text.lower()
if keyword_lowercase in article_text_lowercase:
current_sum += sentiment(article_text)
print("Article count is", str(relevant_article_count)+".")
rating = current_sum/max(relevant_article_count, 1)
print("The rating for", keyword, "is", str(rating)+".")