Abrir páginas de Internet de Jornais usando Tkinter

Para abrir site de forma automática pode tentar a seguinte maneira:

from selenium import webdriver  #pip install selenium
from selenium.webdriver.common.keys import Keys
from webdriver_manager.chrome import ChromeDriverManager #pip install webdriver_manager
import time

#Abre o Chrome
driver = webdriver.Chrome(ChromeDriverManager().install())
driver.get('https://web.whatsapp.com') #abre o site Whatsapp Web
time.sleep(15)

import webbrowser
import tkinter

class jornais_tk(tkinter.Tk):
    def __init__(self,parent):
        tkinter.Tk.__init__(self,parent)
        self.parent = parent
        self.initialize()

    def initialize(self):
        self.grid()
        ## Title  ---------------------------------------

        subtitlelbl = tkinter.Label(self, text="Jornais Genéricos",
                                    font=("Times 15 italic"),
                                 anchor="center", fg="Black"
                                 , bg="green")
        subtitlelbl.grid(column=0, row=1, columnspan=3,
                      sticky='EW')
        subtitlelbl2 = tkinter.Label(self, text="Jornais Económicos",
                                     font=("Times 15 italic"),
                                    anchor="center", fg="Black"
                                    , bg="gold")
        subtitlelbl2.grid(column=0, row=5, columnspan=3,
                         sticky='EW')


        button1 = tkinter.Button(self, text="Jornal de Notícias",font=("Times 12 bold"),
                                 padx=29,
                               bg="medium blue",fg="white",command=self.jn)
        button1.grid(column=0, row=3)

        button2 = tkinter.Button(self, text="Diário de Notícias", 
                                 font=("Times 12 bold"),padx=25,
                               bg="white", fg="navy", command=self.dn)
        button2.grid(column=1, row=3)

        button3 = tkinter.Button(self, text="Observador", 
                                 font=("Times 12 bold"),padx=50,
                                 bg="dodger blue", fg="white", command=self.ob)
        button3.grid(column=0, row=4)
        button4 = tkinter.Button(self, text="Correio da Manhã",
                                 font=("Times 12 bold"),padx=23,
                                 bg="red", fg="white", command=self.cm)
        button4.grid(column=1, row=4)

        button5 = tkinter.Button(self, text="ECO – Economia Online",
                                 font=("Times 12 bold"),padx=9,
                                 bg="green2", fg="white", command=self.eco)
        button5.grid(column=0, row=6)
        button6 = tkinter.Button(self, text="Jornal de Negócios", 
                                 font=("Times 12 bold"), padx=20,
                                 bg="white", fg="black", command=self.jng)
        button6.grid(column=1, row=6)


    def jn(self):
     new=2
     url="https://www.jn.pt/"
     webbrowser.open(url,new=new)


    def dn(self):
     new=2
     url="https://www.dn.pt/"
     webbrowser.open(url,new=new)

    def cm(self):
         new = 2
         url = "https://www.cmjornal.pt/"
         webbrowser.open(url, new=new)
    def ob(self):
         new = 2
         url = "https://observador.pt/"
         webbrowser.open(url, new=new)

    def eco(self):
         new = 2
         url = "https://eco.sapo.pt/"
         webbrowser.open(url, new=new)
    def jng(self):
         new = 2
         url = "https://www.jornaldenegocios.pt/"
         webbrowser.open(url, new=new)


if __name__ == "__main__":
    app = jornais_tk(None)
    app.title('Jornais Portugueses')
app.mainloop()