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Calculator.py
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Calculator.py
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import tkinter
from tkinter import *
from tkinter import messagebox
# setting up the tkinter window
root = tkinter.Tk()
root.geometry("250x400+300+300")
root.resizable(0,0)
root.title("Calculator")
val = ""
A = 0
operator = ""
# function for numerical button clicked
def btn_1_isclicked():
global val
val = val + "1"
data.set(val)
def btn_2_isclicked():
global val
val = val + "2"
data.set(val)
def btn_3_isclicked():
global val
val = val + "3"
data.set(val)
def btn_4_isclicked():
global val
val = val + "4"
data.set(val)
def btn_5_isclicked():
global val
val = val + "5"
data.set(val)
def btn_6_isclicked():
global val
val = val + "6"
data.set(val)
def btn_7_isclicked():
global val
val = val + "7"
data.set(val)
def btn_8_isclicked():
global val
val = val + "8"
data.set(val)
def btn_9_isclicked():
global val
val = val + "9"
data.set(val)
def btn_0_isclicked():
global val
val = val + "0"
data.set(val)
# functions for the operator button click
def btn_plus_clicked():
global A
global operator,val
A = int(val)
operator = "+"
val = val + "+"
data.set(val)
def btn_minus_clicked():
global A
global operator,val
A = int(val)
operator = "-"
val = val + "-"
data.set(val)
def btn_mult_clicked():
global A
global operator,val
A = int(val)
operator = "*"
val = val + "*"
data.set(val)
def btn_div_clicked():
global A
global operator,val
A = int(val)
operator = "/"
val = val + "/"
data.set(val)
def btn_c_pressed():
global A,operator,val
val = ""
A = 0
operator = ""
data.set(val)
# function to find the result
def result():
global A,operator,val
val2 = val
if operator == "+":
x = int((val2.split("+")[1]))
C = A + x
val = str(C)
data.set(val)
if operator == "-":
x = int((val2.split("-")[1]))
C = A - x
val = str(C)
data.set(val)
if operator == "*":
x = int((val2.split("*")[1]))
C = A * x
val = str(C)
data.set(val)
if operator == "/":
x = int((val2.split("/")[1]))
if x == 0:
messagebox.showerror("Error", "Division By 0 Not Supported")
A = ""
val = ""
data.set(val)
else:
C = int(A / x)
data.set(C)
# the label that shows the result
data = StringVar()
lbl = Label(
root,
text = "Label",
anchor = SE,
font = ("Verdana", 20),
textvariable = data,
background = "#000000",
fg = "#ffffff",
)
lbl.pack(expand = True, fill = "both")
# the frames section
btnrow1 = Frame(root)
btnrow1.pack(expand = True, fill = "both")
btnrow2 = Frame(root)
btnrow2.pack(expand = True, fill = "both")
btnrow3 = Frame(root)
btnrow3.pack(expand = True, fill = "both")
btnrow4 = Frame(root)
btnrow4.pack(expand = True, fill = "both")
# The buttons section
btn1 = Button(
btnrow1,
text = "1",
font = ("Verdana", 22),
relief = GROOVE,
border = 0,
background = "#000000",
fg = "#ffffff",
command = btn_1_isclicked,
)
btn1.pack(side = LEFT, expand = True, fill = "both",)
btn2 = Button(
btnrow1,
text = "2",
font = ("Verdana", 22),
relief = GROOVE,
border = 0,
background = "#000000",
fg = "#ffffff",
command = btn_2_isclicked,
)
btn2.pack(side = LEFT, expand = True, fill = "both",)
btn3 = Button(
btnrow1,
text = "3",
font = ("Verdana", 22),
relief = GROOVE,
border = 0,
background = "#000000",
fg = "#ffffff",
command = btn_3_isclicked,
)
btn3.pack(side = LEFT, expand = True, fill = "both",)
btnplus = Button(
btnrow1,
text = "+",
font = ("Verdana", 22),
relief = GROOVE,
border = 0,
background = "#000000",
fg = "#00e7f7",
command = btn_plus_clicked,
)
btnplus.pack(side = LEFT, expand = True, fill = "both",)
# buttons for frame 2
btn4 = Button(
btnrow2,
text = "4",
font = ("Verdana", 22),
relief = GROOVE,
border = 0,
background = "#000000",
fg = "#ffffff",
command = btn_4_isclicked,
)
btn4.pack(side = LEFT, expand = True, fill = "both",)
btn5 = Button(
btnrow2,
text = "5",
font = ("Verdana", 22),
relief = GROOVE,
border = 0,
background = "#000000",
fg = "#ffffff",
command = btn_5_isclicked,
)
btn5.pack(side = LEFT, expand = True, fill = "both",)
btn6 = Button(
btnrow2,
text = "6",
font = ("Verdana", 22),
relief = GROOVE,
border = 0,
background = "#000000",
fg = "#ffffff",
command = btn_6_isclicked,
)
btn6.pack(side = LEFT, expand = True, fill = "both",)
btnminus = Button(
btnrow2,
text = "-",
font = ("Verdana", 22),
relief = GROOVE,
border = 0,
background = "#000000",
fg = "#00e7f7",
command = btn_minus_clicked,
)
btnminus.pack(side = LEFT, expand = True, fill = "both",)
# button for frame 3
btn7 = Button(
btnrow3,
text = "7",
font = ("Verdana", 22),
relief = GROOVE,
border = 0,
background = "#000000",
fg = "#ffffff",
command = btn_7_isclicked,
)
btn7.pack(side = LEFT, expand = True, fill = "both",)
btn8 = Button(
btnrow3,
text = "8",
font = ("Verdana", 22),
relief = GROOVE,
border = 0,
background = "#000000",
fg = "#ffffff",
command = btn_8_isclicked,
)
btn8.pack(side = LEFT, expand = True, fill = "both",)
btn9 = Button(
btnrow3,
text = "9",
font = ("Verdana", 22),
relief = GROOVE,
border = 0,
background = "#000000",
fg = "#ffffff",
command = btn_9_isclicked,
)
btn9.pack(side = LEFT, expand = True, fill = "both",)
btnmult = Button(
btnrow3,
text = "*",
font = ("Verdana", 22),
relief = GROOVE,
border = 0,
background = "#000000",
fg = "#00e7f7",
command = btn_mult_clicked,
)
btnmult.pack(side = LEFT, expand = True, fill = "both",)
# button for frame4
btnc = Button(
btnrow4,
text = "C",
font = ("Verdana", 22),
relief = GROOVE,
border = 0,
background = "#000000",
fg = "#00e7f7",
command = btn_c_pressed,
)
btnc.pack(side = LEFT, expand = True, fill = "both",)
btn0 = Button(
btnrow4,
text = "0",
font = ("Verdana", 22),
relief = GROOVE,
border = 0,
background = "#000000",
fg = "#ffffff",
command = btn_0_isclicked,
)
btn0.pack(side = LEFT, expand = True, fill = "both",)
btnequal = Button(
btnrow4,
text = "/",
font = ("Verdana", 22),
relief = GROOVE,
border = 0,
background = "#000000",
fg = "#00e7f7",
command = btn_div_clicked,
)
btnequal.pack(side = LEFT, expand = True, fill = "both",)
btndiv = Button(
btnrow4,
text = "=",
font = ("Verdana", 22),
relief = GROOVE,
border = 0,
background = "#ff3300",
fg = "#000000",
command = result,
)
btndiv.pack(side = LEFT, expand = True, fill = "both",)
root.mainloop()