Lets-Learn-Python-Together/My TK Calculator Project.py at master · JCR-Python-Programming/Lets-Learn-Python-Together · GitHub

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from tkinter import*

root=Tk()
root.title('majestic calculator'.title())
entry=Entry(root,width=35,borderwidth=5)
entry.grid(row=0,column=0,columnspan=3,padx=10,pady=10)

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

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

def button_add():
    first_number=entry.get()
    global f_num
    global math
    math='addition'
    f_num=int(first_number)
    entry.delete(0,END)

def button_subtract():
    first_number=entry.get()
    global f_num
    global math
    math='subtraction'
    f_num=int(first_number)
    entry.delete(0,END)

def button_multiply():
    first_number=entry.get()
    global f_num
    global math
    math='multiplication'
    f_num=int(first_number)
    entry.delete(0,END)

def button_divide():
    first_number=entry.get()
    global f_num
    global math
    math='division'
    f_num=int(first_number)
    entry.delete(0,END)

def button_equal():
    second_number=entry.get()
    entry.delete(0,END)
    if math=='addition':
        entry.insert(0,f_num+int(second_number))

    elif math=='subtraction':
        entry.insert(0,f_num-int(second_number))

    elif math=='multiplication':
        entry.insert(0,f_num*int(second_number))

    elif math=='division':
        entry.insert(0,f_num/int(second_number))

button1=Button(root,text='1',padx=40,pady=20,command=lambda:button_click(1))
button2=Button(root,text='2',padx=40,pady=20,command=lambda:button_click(2))
button3=Button(root,text='3',padx=40,pady=20,command=lambda:button_click(3))
button4=Button(root,text='4',padx=40,pady=20,command=lambda:button_click(4))
button5=Button(root,text='5',padx=40,pady=20,command=lambda:button_click(5))
button6=Button(root,text='6',padx=40,pady=20,command=lambda:button_click(6))
button7=Button(root,text='7',padx=40,pady=20,command=lambda:button_click(7))
button8=Button(root,text='8',padx=40,pady=20,command=lambda:button_click(8))
button9=Button(root,text='9',padx=40,pady=20,command=lambda:button_click(9))
button0=Button(root,text='0',padx=40,pady=20,command=lambda:button_click(0))

button_add=Button(root,text='+',padx=39,pady=20,command=button_add)
button_subtract=Button(root,text='-',padx=41,pady=20,command=button_subtract)
button_multiply=Button(root,text='*',padx=40,pady=20,command=button_multiply)
button_divide=Button(root,text='/',padx=41,pady=20,command=button_divide)

button_equal=Button(root,text='=',padx=91,pady=20,command=button_equal)
button_clear=Button(root,text='Clear',padx=79,pady=20,command=button_clear)

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_add.grid(row=5,column=0)
button_equal.grid(row=5,column=1,columnspan=2)
button_clear.grid(row=4,column=1,columnspan=2)

button_subtract.grid(row=6,column=0)
button_multiply.grid(row=6,column=1)
button_divide.grid(row=6,column=2)

root.mainloop()