How to make multiple windows in Python Tkinter using Toplevel?

 

import tkinter
from tkinter import *

class learn():
    def __init__(self, root):
        self.root=root
        self.root.title("Hancie e-Learning Studio")
        self.root.geometry("500x400")

        def newgui():
            main=tkinter.Toplevel()
            main.title("Hancie e-Learning Studio")
            main.geometry("300x200")
            label=Label(main, text="Welcome everyone!")
            label.pack()
            main.mainloop()



        btn=Button(self.root,command=newgui, text="Open new Frame")
        btn.pack()



if __name__=='__main__':
    root=Tk()
    learn(root)
    root.mainloop()

Output