Tkinter application with multiple windows

I’m creating an application that requires multiple tkinter windows. The code below works the way how I want it to work, but I’m not sure if I’m doing it in the proper way.

The first window (and in this case, the main window as well) contains three buttons as of now, 1 label which acts as a title, and a treeview.

The “Add Member” button is the only button that has functionality as of now. When clicked, it will pop a new window. That said window contains label.

To sum it up, I would like to humbly ask if I’m doing it properly, or there is a better and more accurate way of writing this code.

class Application(tk.Frame):     def __init__(self,parent,*args,**kwargs):         tk.Frame.__init__(self,parent)         self.parent = parent         self.parent.title("Senior Citizen Association")          ttk.Label(text="SENIOR CITIZEN ASSOCIATION").grid(row=0,column=0,columnspan=5,sticky="n")         ttk.Button(text="Add",command=self.add_member).grid(row=1,column=0,sticky="w")         ttk.Button(text="Delete").grid(row=2,column=0,sticky="w")         ttk.Button(text="Exit",command=lambda:self.parent.destroy()).grid(row=3,column=2,sticky="se")          self.tree = ttk.Treeview(height=15,column=("First Name","Middle Initial","Last Name"))         self.tree.heading("#0",text="First Name",anchor="w")         self.tree.heading("#1",text="Middle Initial",anchor="w")         self.tree.heading("#2",text="Last Name",anchor="w")         self.tree.heading("#3",text="Status",anchor="w")         self.tree.grid(row=1,column=1,rowspan=2,columnspan=2,sticky="nsew")      def add_member(self):         self.addMemberWindow = tk.Toplevel(self.parent)         self.addClass = NewMember(self.parent,self.addMemberWindow)   class NewMember(tk.Frame):     def __init__(self,parent,child,*args,**kwargs):         tk.Frame.__init__(self,child)         self.parent = parent         self.child = child         self.child.title("Add Member")           ttk.Label(self.child,text="Add Member").grid(row=0,column=0,sticky="nsew")      if __name__ == "__main__":     app = tk.Tk()     Application(app)     app.mainloop()