使用 Python 构建一个从谷歌新闻提要中提取新闻的应用程序

原文:https://www . geesforgeks . org/build-a-application-to-extract-news-feed-use-python/

先决条件–Python tkinter

在本文中，我们将编写一个 python 脚本，通过使用gnewclient模块从 Google News Feed 中提取新闻文章，并将其与 GUI 应用程序绑定。gnewsclient 是谷歌新闻提要的 python 客户端。必须先显式安装该应用编程接口才能使用。

安装

以下终端命令安装 gnewsclient 包及其所有必需的库。所以，人们只需要在他们的终端上运行这个命令。

pip install gnewsclient

使用模块

  1. 导入 gnewsclient 模块
  2. 创建新闻客户端对象并设置当前参数设置
  3. 获取新闻源

Python 3

# import module
from gnewsclient import gnewsclient

# declare a NewsClient object
client = gnewsclient.NewsClient(language='hindi', location='india', topic='Business', max_results=5)

# get news feed
client.get_news()

输出:

以下代码描述了如何从该模块收集的信息中打印位置、语言和主题等其他因素:

Python 3

import gnewsclient
from gnewsclient import gnewsclient

client = gnewsclient.NewsClient(language='hindi',
                                location='india',
                                topic='Business',
                                max_results=5)

# prints location
print("Location: \n",client.locations)
print()

# prints languages
print("Language \n",client.languages)
print()

# prints topics
print("Topic \n",client.topics)

输出:

示例 :

程序 1:

Python 3

from gnewsclient import gnewsclient

client = gnewsclient.NewsClient(language='english',
                                location='india',
                                topic='sports',
                                max_results=3)

news_list = client.get_news()

for item in news_list:
    print("Title : ", item['title'])
    print("Link : ", item['link'])
    print("")

输出:

程序 2 :该代码在 GUI 中实现了程序 1 的方法论。

Python 3

# import modules
from tkinter import *
from gnewsclient import gnewsclient

# defined functions
def news():
    client = gnewsclient.NewsClient(
        language=lang.get(), location=loc.get(), topic=top.get(), max_results=3)
    news_list = client.get_news()
    result_title.set(news_list[0]["title"] + "\n" +
                     news_list[1]["title"] + "\n" + news_list[2]["title"])

# tkinter object
master = Tk()
master.title("NEWS")

# background set to grey
master.configure(bg='light grey')

# Variable Classes in tkinter
result_title = StringVar()
result_link = StringVar()

# Creating label for each information
# name using widget Label
Label(master, text="Choose language :", bg="light grey").grid(row=0, sticky=W)
Label(master, text="Choose Location :", bg="light grey").grid(row=1, sticky=W)
Label(master, text="Choose Topic :", bg="light grey").grid(row=2, sticky=W)

lang = Entry(master)
lang.grid(row=0, column=1)

loc = Entry(master)
loc.grid(row=1, column=1)

top = Entry(master)
top.grid(row=2, column=1)

# Creating label for class variable
# name using widget Entry
Label(master, text="", textvariable=result_title,
      bg="light grey").grid(row=3, column=1, sticky=W)

# creating a button using the widget
# Button to call the submit function
Button(master, text="SHOW", command=news, bg="white").grid(row=1, column=3)

mainloop()

输出:

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