# Usando Tkinter

from tkinter import *
import webbrowser

def callback(event):
    webbrowser.open_new(event.widget.cget("text"))

root = Tk()
root.title("Usando Tkinter para link")
root.resizable(0,0)
root.geometry("400x100")
lbl =Label(root, text=r"http://www.sapo.pt", fg="blue", cursor="hand2")
lbl.place(relx=0.3,rely=0.3)
lbl.bind("<Button-1>", callback)
root.mainloop()

# Terminal

print("http://www.sapo.pt")