Second window not working in tkinter?

Question

Python

When creating a second window, it becomes not responsible.
On other systems like Ubuntu everything works.

class win2:

    def __init__(self):
        self.root = Tk()
        self.root.mainloop()

class win1:

    def __init__(self):
        self.root = Tk()

        self.button = Button(self.root)
        self.button.bind('<Button-1>', self.buttonFunc)
        self.button.pack()

        self.root.mainloop()

    def buttonFunc(self, event):
        windows2 = win2()

if __name__ == "__main__":
    window1 = win1()

Answer 1

It works for me, what exactly is the problem?