编程语言
首页 > 编程语言> > 第74天:Python newspaper 框架

第74天:Python newspaper 框架

作者:互联网

图片

1 简介

newspaper 框架是一个主要用来提取新闻内容及分析的 Python 爬虫框架,更确切的说,newspaper 是一个 Python 库,但这个库由第三方开发。

newspaper 主要具有如下几个特点:

GitHub 链接:https://github.com/codelucas/newspaper

安装方法:pip3 install newspaper3k

2 基本使用

2.1 获取新闻

我们以环球网为例,如下所示:

import newspaper
hq_paper = newspaper.build("https://tech.huanqiu.com/", language="zh", memoize_articles=False)

默认情况下,newspaper 缓存所有以前提取的文章,并删除它已经提取的任何文章,使用 memoize_articles 参数选择退出此功能。

2.2 获取文章 URL

>>> import newspaper
>>> hq_paper = newspaper.build("https://tech.huanqiu.com/", language="zh", memoize_articles=False)>>> for article in hq_paper.articles:>>>     print(article.url)
http://world.huanqiu.com/gallery/9CaKrnQhXvyhttp://mil.huanqiu.com/gallery/7RFBDCOiXNChttp://world.huanqiu.com/gallery/9CaKrnQhXvzhttp://world.huanqiu.com/gallery/9CaKrnQhXvw...

2.3 获取类别

>>> import newspaper
>>> hq_paper = newspaper.build("https://tech.huanqiu.com/", language="zh", memoize_articles=False)>>> for category in hq_paper.category_urls():>>>     print(category)
http://www.huanqiu.comhttp://tech.huanqiu.comhttp://smart.huanqiu.comhttps://tech.huanqiu.com/

2.4 获取品牌和描述

>>> import newspaper
>>> hq_paper = newspaper.build("https://tech.huanqiu.com/", language="zh", memoize_articles=False)>>> print(hq_paper.brand)>>> print(hq_paper.description)
huanqiu环球网科技,不一样的IT视角!以“成为全球科技界的一面镜子”为出发点,向关注国际科技类资讯的网民,提供国际科技资讯的传播与服务。

2.5 下载解析

我们选取其中一篇文章为例,如下所示:

>>> import newspaper
>>> hq_paper = newspaper.build("https://tech.huanqiu.com/", language="zh", memoize_articles=False)>>> article = hq_paper.articles[4]# 下载>>> article.download()# 解析article.parse()# 获取文章标题>>> print("title=", article.title)# 获取文章日期>>> print("publish_date=", article.publish_date)# 获取文章作者>>> print("author=", article.authors)# 获取文章顶部图片地址>>> print("top_iamge=", article.top_image)# 获取文章视频链接>>> print("movies=", article.movies)# 获取文章摘要>>> print("summary=", article.summary)# 获取文章正文>>> print("text=", article.text)
title= “美丽山”的美丽传奇publish_date= 2019-11-15 00:00:00...

2.6 Article 类使用

import newspaperfrom newspaper import Article
def newspaper_url(url):    web_paper = newspaper.build(url, language="zh", memoize_articles=False)    for article in web_paper.articles:        newspaper_info(article.url)
def newspaper_info(url):    article = Article(url, language='zh')    article.download()    article.parse()    print("title=", article.title)    print("author=", article.authors)    print("publish_date=", article.publish_date)    print("top_iamge=", article.top_image)    print("movies=", article.movies)    print("text=", article.text)    print("summary=", article.summary)
if __name__ == "__main__":        newspaper_url("https://tech.huanqiu.com/")

3 多任务

当我们需要从多个渠道获取新闻信息时可以采用多任务的方式,如下所示:

import newspaperfrom newspaper import news_pool
hq_paper = newspaper.build('https://www.huanqiu.com', language="zh")sh_paper = newspaper.build('http://news.sohu.com', language="zh")sn_paper = newspaper.build('https://news.sina.com.cn', language="zh")
papers = [hq_paper, sh_paper, sn_paper]# 线程数为 3 * 2 = 6news_pool.set(papers, threads_per_source=2)news_pool.join()print(hq_paper.articles[0].html)

因获取内容较多,上述代码执行可能需要一段时间,我们要耐心等待。

总结

本文为大家介绍了 Python 爬虫框架 newspaper,让大家能够对 newspaper 有个基本了解以及能够上手使用。newspaper 框架还存在一些 bug,因此,我们在实际工作中需要综合考虑、谨慎使用。

示例代码:https://github.com/JustDoPython/python-100-day/tree/master/day-074

参考:https://newspaper.readthedocs.io/en/latest/user_guide/quickstart.html#performing-nlp-on-an-article


系列文章
第73天:itchat 微信机器人简介第72天:PySpider框架的使用
第71天:Python Scrapy 项目实战
从 0 学习 Python 0 - 70 大合集总结




标签:huanqiu,Python,paper,print,74,newspaper,article,com
来源: https://blog.51cto.com/u_15127519/2693722