Tkinter - Preciso de ajuda Python

from tkinter import *
​
class Aplicacao:
    def _init_(self, master= None):
        self.msg = Label(master)
        self.msg["text"] = "python"
        self.msg.pack()
        
root = Tk()
Aplicacao(root)
root.mainloop()

TypeError                                 Traceback (most recent call last)
<ipython-input-33-c8154934a6cf> in <module>
      8 
      9 root = Tk()
---> 10 Aplicacao(root)
     11 root.mainloop()

TypeError: Aplicacao() takes no arguments