Calculator using python смотреть онлайн

CODE:

from tkinter import *

root=Tk()
root.title("Calculator by Vedansh")
#Entry
e=Entry(root,width=35,borderwidth=10)
e.grid(row=0,column=0,columnspan=3,padx=10,pady=10)

def button_click(number):
current=e.get()
e.delete(0, END)
e.insert(0, str(current)+str(number))

def button_clear():
e.delete(0,END)

def button_add():
no1=e.get()
global f_num
global math
math = "add"
f_num=int(no1)
e.delete(0,END)

def button_equal():
no2=e.get()
e.delete(0,END)

if(math=="add"):
e.insert(0,f_num+ int(no2))

elif(math=="sub"):
e.insert(0,f_num- int(no2))

elif(math=="mul"):
e.insert(0,f_num* int(no2))

elif(math=="div"):
e.insert(0,f_num/ int(no2))


def button_sub():
no1=e.get()
global f_num
global math
math = "sub"
f_num=int(no1)
e.delete(0,END)

def button_mul():
no1=e.get()
global f_num
global math
math = "mul"
f_num=int(no1)
e.delete(0,END)

def button_div():
no1=e.get()
global f_num
global math
math = "div"
f_num=int(no1)
e.delete(0,END)
#Define buttons
button1=Button(root,text="1",padx=40,pady=20,command=lambda: button_click(1),bg="orange")
button2=Button(root,text="2",padx=40,pady=20,command=lambda: button_click(2),bg="orange")
button3=Button(root,text="3",padx=40,pady=20,command=lambda: button_click(3),bg="orange")
button4=Button(root,text="4",padx=40,pady=20,command=lambda: button_click(4),bg="orange")
button5=Button(root,text="5",padx=40,pady=20,command=lambda: button_click(5),bg="orange")
button6=Button(root,text="6",padx=40,pady=20,command=lambda: button_click(6),bg="orange")
button7=Button(root,text="7",padx=40,pady=20,command=lambda: button_click(7),bg="orange")
button8=Button(root,text="8",padx=40,pady=20,command=lambda: button_click(8),bg="orange")
button9=Button(root,text="9",padx=40,pady=20,command=lambda: button_click(9),bg="orange")
button0=Button(root,text="0",padx=40,pady=20,command=lambda: button_click(0),bg="orange")
button_add=Button(root,text="+",padx=39,pady=20,command=button_add,bg="grey")
button_sub=Button(root,text="-",padx=40,pady=20,command=button_sub,bg="grey")
button_multiply=Button(root,text="*",padx=40,pady=20,command=button_mul,bg="grey")
button_div=Button(root,text="/",padx=40,pady=20,command=button_div,bg="grey")
button_equal=Button(root,text="=",padx=91,pady=20,command=button_equal)
button_clear=Button(root,text="CE",padx=88,pady=20,command=button_clear)
#Putting them on the screen

button1.grid(row=3,column=0)
button2.grid(row=3,column=1)
button3.grid(row=3,column=2)

button4.grid(row=2,column=0)
button5.grid(row=2,column=1)
button6.grid(row=2,column=2)

button7.grid(row=1,column=0)
button8.grid(row=1,column=1)
button9.grid(row=1,column=2)

button0.grid(row=4,column=0)
button_clear.grid(row=4,column=1,columnspan=2)
button_add.grid(row=5,column=0)
button_equal.grid(row=5,column=1,columnspan=2)
button_sub.grid(row=6,column=0)
button_multiply.grid(row=6,column=1)
button_div.grid(row=6,column=2)


root.mainloop()