How to make software in python

from Tkinter import *
import Tkinter
import tkMessageBox
def proces():
    number1=Entry.get(E1)
    number2=Entry.get(E2)
    operator=Entry.get(E3)
    number1=int(number1)
    number2=int(number2)
    if operator =="+":
        answer=number1+number2
    if operator =="-":
        answer=number1-number2
    if operator=="*":
        answer=number1*number2
    if operator=="/":
        answer=number1/number2
    Entry.insert(E4,0,answer)
    print(answer)

top = Tkinter.Tk()
L1 = Label(top, text="My calculator",).grid(row=0,column=1)
L2 = Label(top, text="Number 1",).grid(row=1,column=0)
L3 = Label(top, text="Number 2",).grid(row=2,column=0)
L4 = Label(top, text="Operator",).grid(row=3,column=0)
L4 = Label(top, text="Answer",).grid(row=4,column=0)
E1 = Entry(top, bd =5)
E1.grid(row=1,column=1)
E2 = Entry(top, bd =5)
E2.grid(row=2,column=1)
E3 = Entry(top, bd =5)
E3.grid(row=3,column=1)
E4 = Entry(top, bd =5)
E4.grid(row=4,column=1)
B=Button(top, text ="Submit",command = proces).grid(row=5,column=1,)

top.mainloop()

Source: instructables.com

Similar codes

1 vote308 views1 answer
What is serialization in django
Python Django
23 votes426 views3 answers
Django rest framework
Python Django
0 vote274 views1 answer
Limiting a for each loop python
Python
9 votes264 views2 answers
Pygame render text
Python
8 votes270 views2 answers
Syntaxerror: eol while scanning string literal
Python
0 vote315 views1 answer
Purpose of migration folder in django
Python Django
46 votes290 views6 answers
Add row to dataframe
Python
18 votes249 views1 answer
Dataframe tolist python
Python
28 votes283 views2 answers
Pandas replace nan with value above
Python
19 votes308 views2 answers
Palindrome string python
Python