ΘΕΜΑ: Tkinter, Πόσο κακογραμμένο θα θεωρούσατε αυτό το πρόγραμμα;

from tkinter import *
 
screen = Tk()
 
do = "+"
 
 
#----------------------------------Do_It Function----------------------------------#
def Do_It():
    global num1, num2, value
 
    #See if there are numbers in the entrys  field#
    try:
        number1 = int(num1.get())
        number2 = int(num2.get())
        pass
 
    except:
        pass
    #See if there are numbers in the entrys  field#
 
    if do == "+":
        value.set(str(number1 + number2))
        pass
 
    elif do == "-":
        value.set(str(number1 - number2))
        pass
 
    elif do == "x":
        value.set(str(number1 * number2))
        pass
 
    elif do == "/":
        value.set(str(number1 / number2))
        pass
 
 
    pass
#----------------------------------Do_It Function----------------------------------#
 
 
 
#-----------------------------------Plus Function----------------------------------#
def Plus():
    global text, do
 
    text.set("+")
    do = text.get()
    pass
#-----------------------------------Plus Function----------------------------------#
 
 
 
#---------------------------------Negative Function--------------------------------#
def Negative():
    global text, do
 
    text.set("-")
    do = text.get()
    pass
#---------------------------------Negative Function--------------------------------#
 
 
 
#----------------------------------Multy Function----------------------------------#
def Multy():
    global text, do
 
    text.set("x")
    do = text.get()
    pass
#----------------------------------Multy Function----------------------------------#
 
 
 
#-----------------------------------Div Function-----------------------------------#
def Div():
    global text, do
 
    text.set("/")
    do = text.get()
    pass
#-----------------------------------Div Function-----------------------------------#
 
 
 
#_____Variables_____#
 
num1 = StringVar()
num2 = StringVar()
 
text = StringVar()
text.set("+")
 
value = StringVar()
value.set("0")
 
#_____Variables_____#
 
#Creating the Window
screen.geometry("500x500+400+200")
screen.title("Αριθμομηχανή")
 
#Building the Entrys.
entry1 = Entry(textvariable = num1).place(x = 10 , y = 25)
label1 = Label(textvariable = text).place(x = 150, y = 25)
label2 = Label(text = "=", fg = "black").place(x = 310, y = 25)
label3 = Label(textvariable = value).place(x = 330, y = 25)
entry2 = Entry(textvariable = num2).place(x = 180, y = 25)
 
#Buttons.
doit   = Button(text = "Υπολόγισε", command = Do_It).place(x = 120, y = 80)
 
label4 = Label(text = "Διάλεξε Την Πράξη", fg = "black").place(x = 10, y = 125)
plus   = Button(text = "+", command = Plus).place(x = 25, y = 150)
nega   = Button(text = "-", command = Negative).place(x = 25, y = 180)
mult   = Button(text = "x", command = Multy).place(x = 25, y = 210)
div    = Button(text = "/", command = Div).place(x = 25, y = 240)
 
#Credits
CreditsTitle = Label(text = "Credits", fg = "red").place(x = 225, y = 300)
Credits      = Label(text = "Made by Nick Babaliaris", fg = "red").place(x = 180, y = 330)
Comment      = Label(text = "Crazy program right?", fg = "red").place(x = 190, y = 360)
 
#####THE END#####
 
screen.mainloop()