front end design in tkinter

#import everything from tkinter
from tkinter import *

#create Window object
window=Tk()

#define four labels title Author year ISBN
l1=Label(window,text="title")
l1.grid(row=0,column=0)

l2=Label(window,text="Author")
l2.grid(row=0,column=2)

l3=Label(window,text="Year")
l3.grid(row=1,column=0)

l4=Label(window,text="ISBN")
l4.grid(row=1,column=2)

#define Enteries
title_text=StringVar()
e1=Entry(window,textvariable=title_text)
e1.grid(row=0,column=1)

author_text=StringVar()
e2=Entry(window,textvariable=author_text)
e2.grid(row=0,column=3)

year_text=StringVar()
e3=Entry(window,textvariable=year_text)
e3.grid(row=1,column=1)

isbn_text=StringVar()
e4=Entry(window,textvariable=isbn_text)
e4.grid(row=1,column=3)

#define list box
list1=Listbox(window,height=6,width=35)
list1.grid(row=2,column=0,rowspan=6,columnspan=2)

#attach scroollbar to list
sb1=Scrollbar(window)
sb1.grid(row=2,column=2,rowspan=6)

list1.configure(yscrollcommand=sb1.set)
sb1.configure(command=list1.yview)

#define buttons
b1=Button(window,text="View all",width=12)
b1.grid(row=2,column=3)

b1=Button(window,text="Search",width=12)
b1.grid(row=3,column=3)

b1=Button(window,text="edit all",width=12)
b1.grid(row=4,column=3)

b1=Button(window,text="Vdelete",width=12)
b1.grid(row=5,column=3)

b1=Button(window,text="close",width=12)
b1.grid(row=6,column=3)

window.mainloop()