Python Exercise #6 | Create GUI calculator application using Python Tkinter module | Technolazy

Publicado em: 27 Julho 2020
no canal de: Technolazy

270

Hello friends,
In this python tutorial for beginners video, we are going to create simple GUI calculator application using python tkinter module

Requirement; install tkinter module with command 'pip install tkinter'

Adding the code part used in video session, please comment your inputs and more topics

Code starts
import tkinter as tk
from tkinter import messagebox

root = tk.Tk()
canvas1 = tk.Canvas(root,width=300,height=300)
canvas1.pack()

def calc():
num1 = num1_entry.get()
num2 = num2_entry.get()
operator = opt_entry.get()

if operator == '+':
add = int(num1) + int(num2)
tk.messagebox.showinfo('Addition',add)
elif operator == '-':
sub = int(num1) - int(num2)
tk.messagebox.showinfo('Subtraction',sub)
print("The sub value is ", sub)
elif operator == '/':
div = int(num1) / int(num2)
tk.messagebox.showinfo('Division',div)
elif operator == '*':
mul = int(num1) * int(num2)
tk.messagebox.showinfo('Multiply',mul)
else:
tk.messagebox.showinfo('Alert','Wrong Operator')

root.destroy()

#header label
header_label = tk.Label(root,text="Welcome to Calculator")
canvas1.create_window(165,35,window=header_label)

#num1 input field
num1_entry = tk.Entry(root,text='Num1')
canvas1.create_window(215,75,window=num1_entry)
num1_label = tk.Label(root,text='Enter Num1 Value :')
canvas1.create_window(95,75,window=num1_label)

#num2 input field
num2_entry = tk.Entry(root,text='Num2')
canvas1.create_window(215,105,window=num2_entry)
num2_label = tk.Label(root,text='Enter Num2 Value :')
canvas1.create_window(95,105,window=num2_label)

#operator input field
opt_entry = tk.Entry(root,text='Opt')
canvas1.create_window(215,135,window=opt_entry)
opt_label = tk.Label(root,text='Select Operator :')
canvas1.create_window(95,135,window=opt_label)

#calc button
calc_button = tk.Button(root,text='Calculate',command=calc)
canvas1.create_window(215,165,window=calc_button)

root.mainloop()

Code Ends

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