[Tkinter] Scrollbar in tkinter

[PatrickNoir]

I don't know why this scrollbar not working. Please help

canvas = Canvas(frame, bd=0,
                xscrollcommand=xscrollbar.set,
                yscrollcommand=yscrollbar.set)

canvas.grid(row=0, column=0, sticky=N+S+E+W)

xscrollbar.config(command=canvas.xview)
yscrollbar.config(command=canvas.yview)

frame.pack()
entry1 = Entry(canvas,bg='blue',fg = 'white',width=70)

entry2 = Entry(canvas,bg='red',fg = 'white',width=70)
entry1.pack()
entry2.pack()


def pressed(ro):
    global button1
    y=e.get()
    if type(y)==str and y!="":
        entry1 = Entry(canvas,bg='blue',width=70)
        entry2 = Entry(canvas,bg='red',width=70)
        entry1.pack()
        entry2.pack()
        
         
e=Entry(root,width=124)
e.pack()

button1 = Button(root,text= "Submit",command =lambda: pressed(0))
button1.pack()