Make Python Turtle Calculator With Code
Last updated June 8, 2023 by Jarvis Silva
In this tutorial I will show you how to make python turtle calculator, this calculator will have a gui and be able to perform basic arithmetic operations like addition, multiplication, subtraction and division
We will turtle module which is a GUI library for python, you can draw anything with this library, but we will use this library today to make a calculator in python.
Python Code For Turtle Calculator
import turtle
#Answers List.
Answ_List = []
#Calculator Screen.
SIZE_X=500
SIZE_Y=500
turtle.setup(SIZE_X, SIZE_Y)
turtle.tracer(1,0)
t = turtle.Turtle()
tDel = t.clone()
t.hideturtle()
tDel.hideturtle()
t.left(90)
############################################################################################
#Drawing & Defining GUI Buttons.
#btn0
t.penup()
t.goto(-240,-240)
t.pendown()
t.goto(-240,-200)
t.goto(-177.5,-200)
t.goto(-177.5,-240)
t.goto(-240,-240)
t.penup()
t.goto(-220,-245)
t.write("0", font=('Courier', 30, 'bold'))
#btn1
t.penup()
t.goto(-240,-190)
t.pendown()
t.goto(-240,-150)
t.goto(-177.5,-150)
t.goto(-177.5,-190)
t.goto(-240,-190)
t.penup()
t.goto(-220,-195)
t.write("1", font=('Courier', 30, 'bold'))
#btn4
t.penup()
t.goto(-240,-140)
t.pendown()
t.goto(-240,-100)
t.goto(-177.5,-100)
t.goto(-177.5,-140)
t.goto(-240,-140)
t.penup()
t.goto(-220,-145)
t.write("4", font=('Courier', 30, 'bold'))
#btn7
t.penup()
t.goto(-240,-90)
t.pendown()
t.goto(-240,-50)
t.goto(-177.5,-50)
t.goto(-177.5,-90)
t.goto(-240,-90)
t.penup()
t.goto(-220,-95)
t.write("7", font=('Courier', 30, 'bold'))
#btn=
t.penup()
t.goto(-167.5,-240)
t.pendown()
t.goto(-167.5,-200)
t.goto(-105,-200)
t.goto(-105,-240)
t.goto(-167.5,-240)
t.penup()
t.goto(-147.5,-245)
t.write("=", font=('Courier', 30, 'bold'))
#btn2
t.penup()
t.goto(-167.5,-190)
t.pendown()
t.goto(-167.5,-150)
t.goto(-105,-150)
t.goto(-105,-190)
t.goto(-167.5,-190)
t.penup()
t.goto(-147.5,-195)
t.write("2", font=('Courier', 30, 'bold'))
#btn5
t.penup()
t.goto(-167.5,-140)
t.pendown()
t.goto(-167.5,-100)
t.goto(-105,-100)
t.goto(-105,-140)
t.goto(-167.5,-140)
t.penup()
t.goto(-147.5,-145)
t.write("5", font=('Courier', 30, 'bold'))
#btn8
t.penup()
t.goto(-167.5,-90)
t.pendown()
t.goto(-167.5,-50)
t.goto(-105,-50)
t.goto(-105,-90)
t.goto(-167.5,-90)
t.penup()
t.goto(-147.5,-95)
t.write("8", font=('Courier', 30, 'bold'))
#btn+
t.penup()
t.goto(-95,-240)
t.pendown()
t.goto(-95,-200)
t.goto(-32.5,-200)
t.goto(-32.5,-240)
t.goto(-95,-240)
t.penup()
t.goto(-75,-245)
t.write("+", font=('Courier', 30, 'bold'))
#btn3
t.penup()
t.goto(-95,-190)
t.pendown()
t.goto(-95,-150)
t.goto(-32.5,-150)
t.goto(-32.5,-190)
t.goto(-95,-190)
t.penup()
t.goto(-75,-195)
t.write("3", font=('Courier', 30, 'bold'))
#btn6
t.penup()
t.goto(-95,-140)
t.pendown()
t.goto(-95,-100)
t.goto(-32.5,-100)
t.goto(-32.5,-140)
t.goto(-95,-140)
t.penup()
t.goto(-75,-145)
t.write("6", font=('Courier', 30, 'bold'))
#btn9
t.penup()
t.goto(-95,-90)
t.pendown()
t.goto(-95,-50)
t.goto(-32.5,-50)
t.goto(-32.5,-90)
t.goto(-95,-90)
t.penup()
t.goto(-75,-95)
t.write("9", font=('Courier', 30, 'bold'))
#btn-
t.penup()
t.goto(-22.5,-240)
t.pendown()
t.goto(-22.5,-200)
t.goto(40,-200)
t.goto(40,-240)
t.goto(-22.5,-240)
t.penup()
t.goto(-0.5,-245)
t.write("-", font=('Courier', 30, 'bold'))
#btn*
t.penup()
t.goto(-22.5,-190)
t.pendown()
t.goto(-22.5,-150)
t.goto(40,-150)
t.goto(40,-190)
t.goto(-22.5,-190)
t.penup()
t.goto(-2.5,-202.5)
t.write("*", font=('Courier', 35, 'bold'))
#btn/
t.penup()
t.goto(-22.5,-140)
t.pendown()
t.goto(-22.5,-100)
t.goto(40,-100)
t.goto(40,-140)
t.goto(-22.5,-140)
t.penup()
t.goto(-0.5,-140)
t.write("/", font=('Courier', 25, 'bold'))
#btn^
t.penup()
t.goto(-22.5,-90)
t.pendown()
t.goto(-22.5,-50)
t.goto(40,-50)
t.goto(40,-90)
t.goto(-22.5,-90)
t.penup()
t.goto(-0.5,-95)
t.write("^", font=('Courier', 30, 'bold'))
############################################################################################
#Calculator Answer Screen.
t.goto(-240,-40)
t.pendown()
t.goto(-240,240)
t.goto(40,240)
t.goto(40,-40)
t.goto(-240,-40)
t.penup()
#Calculator Answer Screen Delete.
def delete():
tDel.penup()
tDel.fillcolor("white")
tDel.begin_fill()
tDel.goto(-235,-35)
tDel.goto(-235,235)
tDel.goto(35,235)
tDel.goto(35,-35)
tDel.goto(-235,-35)
tDel.end_fill()
#Calculator History.
t.penup()
t.goto(50,250)
t.pendown()
t.goto(50,-250)
t.penup()
t.goto(90,215)
t.write("History", font=('Courier', 20, 'bold'))
t.goto(250,210)
t.pendown()
t.goto(50,210)
t.penup()
t.goto(60,180)
#Clear Calculator History.
def btnclear():
t.penup()
t.goto(240,-230)
t.pendown()
t.goto(180,-230)
t.goto(180,-210)
t.goto(240,-210)
t.goto(240,-230)
t.penup()
t.goto(185,-230)
t.write("Clear", font=("Courier", 12, 'bold'))
t.goto(60,180)
def clear(x,y):
if x > 180 and x < 240 and y > -230 and y < -210:
t.fillcolor("white")
t.begin_fill()
t.goto(55,210)
t.goto(250,210)
t.goto(250,-250)
t.goto(55,-250)
t.goto(55,210)
t.end_fill()
t.goto(50,210)
t.pendown()
t.goto(250,210)
t.penup()
btnclear()
print("\nCleared History! Press Enter To Continue")
turtle.onscreenclick(clear, 1)
turtle.listen
btnclear()
#Defining The Calculator Operations And Their Functions.
def add(x,y):
return x + y
def subtract(x,y):
return x - y
def multiply(x,y):
return x * y
def divide(x,y):
return x / y
def power(x,y):
return x ** y
#Welcome & Instructions Text.
print("Welcome To George's Helpful Calculator!\nThe Operations That Are Available Are:")
print("1.Addition(+)\n2.Subtraction(-)\n3.Multiplication(*)\n4.Division(/)\n5.Exponent(^)")
input("\nPress Enter to Start")
#Defining The Calculation Function, Asking For The User's Input & Error Handling.
def calculate():
try:
delete()
x = float(input("\nEnter Your First Number: "))
tDel.penup()
tDel.goto(-200,200)
tDel.write(x, font=('Courier', 13, 'bold'))
y = float(input("Enter Your Second Number: "))
tDel.goto(-200,150)
tDel.write(y, font=('Courier', 13, 'bold'))
except ValueError:
print("ERROR 'Integers Only'")
calculate()
else:
try:
operation = input("Enter Your Operation Of Choice: ")
tDel.goto(-200,175)
tDel.write(operation, font=('Courier', 13, 'bold'))
if operation in ('+', '-', '*', '/', '^'):
if operation == '+':
Answ1 = add(x, y)
print("Answer:", x, "+", y, "=", Answ1)
tDel.goto(-200,125)
tDel.write("=", font=('Courier', 13, 'bold'))
tDel.goto(-200,100)
tDel.write(Answ1, font=('Courier', 13, 'bold'))
Answ_List.append(Answ1)
hlp()
elif operation == '-':
Answ2 = subtract(x, y)
print("Answer:", x, "-", y, "=", Answ2)
tDel.goto(-200,125)
tDel.write("=", font=('Courier', 13, 'bold'))
tDel.goto(-200,100)
tDel.write(Answ2, font=('Courier', 13, 'bold'))
Answ_List.append(Answ2)
hlp()
elif operation == '*':
Answ3 = multiply(x, y)
print("Answer:", x, "*", y, "=", Answ3)
tDel.goto(-200,125)
tDel.write("=", font=('Courier', 13, 'bold'))
tDel.goto(-200,100)
tDel.write(Answ3, font=('Courier', 13, 'bold'))
Answ_List.append(Answ3)
hlp()
elif operation == '/':
Answ4 = divide(x, y)
print("Answer:", x, "/", y, "=", Answ4)
tDel.goto(-200,125)
tDel.write("=", font=('Courier', 13, 'bold'))
tDel.goto(-200,100)
tDel.write(Answ4, font=('Courier', 13, 'bold'))
Answ_List.append(Answ4)
hlp()
elif operation == '^':
Answ5 = power(x, y)
print("Answer:", x, "^", y, "=", Answ5)
tDel.goto(-200,125)
tDel.write("=", font=('Courier', 13, 'bold'))
tDel.goto(-200,100)
tDel.write(Answ5, font=('Courier', 13, 'bold'))
Answ_List.append(Answ5)
hlp()
else:
print("ERROR 'Invalid Operation'")
calculate()
except ZeroDivisionError:
print("ERROR 'Can Not Divide By Zero'")
calculate()
except OverflowError:
print("ERROR 'The Number Is Too Big For The Computer To Handle'")
calculate()
else:
rerun()
#Asking If The User Wants To Continue Or Stop Using The Calculator.
def rerun():
run_again = input("\nWould you like to calculate again?\nPlease Type Y for Yes or N for No: ")
if run_again.upper() == "Y":
calculate()
elif run_again.upper() == "N":
print("Good Luck!")
quit()
else:
rerun()
#History List Print.
def hlp():
for i in range(len(Answ_List)):
##print(Answ_List[i])
t.write(Answ_List[i], font=('Courier', 20, 'bold'))
Answ_List.clear()
t.backward(25)
calculate()
t.mainloop()
Above is the code for the python turtle calculator. Copy it and paste it in a python file and run it on your computer or use an online python compiler.
After running the code below is the output you should get, it will open a new window like below
Now if you tried clicking the numbers on the screen it won’t work. It is just a GUI you need to do all the operation in the command prompt or terminal. All the output and the history of your calculation will appear on the GUI.
I hope you found this tutorial helpful and interesting, do share it with your friends if they are interested in this program.
Here are more python turtle guides that will interest you:
- Draw doraemon using python turtle.
- Draw shinchan using python turtle.
- Draw I love you using python turtle.
- Draw Batman logo using python turtle.
- Draw Google Logo using python turtle.
I hope you found what you were looking for from this python tutorial and if you want more python tutorials like this, do join our Telegram channel for more.
Thank you for reading, have a nice day 🙂
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