使用Python构建一个应用程序以从 Google News Feed 中提取新闻

先决条件Python tkinter

在本文中，我们将编写一个Python脚本，使用gnewsclient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 是一个用于 Google News Feed 的Python客户端。必须先明确安装此 API 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中运行这个命令。

pip install gnewsclient

使用模块

1. 导入 gnewsclient 模块
2. 创建一个 NewsClient 对象并设置当前参数设置
3. 获取新闻提要

Python3

# 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此模块收集的信息打印其他因素，如位置、语言和主题：

蟒蛇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：

方案一：

蟒蛇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 ：此代码在 GUI 中实现程序 1 的方法。

蟒蛇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 lebel 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：