Tkinter in Python

main.py

from tkinter import *
class Main( Frame ):
    def __init__( self, parent ):
        Frame.__init__( self, parent )
        self.parent = parent
        self.initUI( parent )
    def initUI( self, parent ):
        self.parent.title( "tkinter example" )
        self.pack( fill=BOTH, expand=1 )
        # init menu
        menubar = Menu( self.parent )
        self.parent.config( menu=menubar )
        mainMenu = Menu( self, tearoff=False )
        subMenu = Menu( self, tearoff=False )
        mainMenu.add_cascade( label='new collection', underline=0, menu=subMenu, accelerator="Ctrl-N" )
        subMenu.add_command( label='manual setup', underline=0, command = self.manual_setup, accelerator="Ctrl-M" )
        mainMenu.add_command( label='existing collection', underline=0, accelerator="Ctrl-A", command = self.existing_collection )
        menubar.add_cascade( label="File", underline=0, menu=mainMenu, accelerator="Ctrl-F" )
        frame=Frame(parent)
        frame.pack()
        self.lab = Label(frame, text="name")
        self.lab.grid(row=0, column=0, sticky=W)
        self.TextField = Entry(frame, text = "name", width=30)
        self.TextField.grid(row=0, column=1)
        self.text = Label(frame, text="phone")
        self.text.grid(row=1, column=0, sticky=W)
        self.TextField3 = Entry(frame, text = "phone", width=30)
        self.TextField3.grid(row=1, column=1)
        self.btn=Button(frame, text='Add')#command=self.add_note
        self.btn.grid(row=3, column=0, rowspan=1, sticky="w")
        
    def manual_setup( self ):
        pass
    def existing_collection( self ):
        pass
root = Tk()
ex = Main( root )
ex.pack( side="right" )
root.mainloop()