Python 7 Levels, L7, Unit 78, Remainder Gadget

Remainder Gadget

import tkinter as tk
from tkinter import messagebox

class Application:

    def __init__(self):
        self.root = tk.Tk()
        self.root.title("Remainder Gadget")
        self.root.geometry("450x80+400+300")
        self.createWidget()

    def createWidget(self):
        global photo
        photo = tk.PhotoImage(file="image//jsq.gif")
        self.label_01 = tk.Label(self.root,image=photo)
        self.label_01.pack(side="left")
        #Dividend input
        self.v1 = tk.StringVar()
        self.entry_01 = tk.Entry(self.root,\
                                 width=6,font=("Times New Roman",16),textvariable=self.v1)
        self.entry_01.pack(side="left")
        #module:%
        self.label_02 = tk.Label(self.root,text="%")
        self.label_02.pack(side="left")
        #Divisor input 
        self.v2 = tk.StringVar()
        self.entry_02 = tk.Entry(self.root,\
                                 width=6,font=("Times New Roman",16),textvariable=self.v2)
        self.entry_02.pack(side="left")
        #equal label:=
        self.label_03 = tk.Label(self.root,text="=")
        self.label_03.pack(side="left")
        #result diaplay
        self.v3 = tk.StringVar()
        self.entry_03 = tk.Entry(self.root,\
                                 width=6,font=("Times New Roman",16),textvariable=self.v3)
        self.entry_03.pack(side="left")
        #calculate button
        self.btn_01 = tk.Button(self.root,text="Calculate",width=6,height=2,command=self.clkbtn)
        self.btn_01.pack(side="left",padx=10)

    def clkbtn(self):
        try:
            v = int(self.entry_01.get()) % int(self.entry_02.get())
        except ValueError:
            tk.messagebox.showinfo("System Information","Wrong input，non-digit input")
        except ZeroDivisionError:
            tk.messagebox.showinfo("System Information","Wrong input，divisor cannot be 0")
        else:
            self.v3.set(v)
         
    def run(self):
        self.root.mainloop()


app = Application()
app.run()