tkinter-example.py

from tkinter import *
from tkinter import messagebox

class Chb:
    def __init__(self,root):
        label1 = Label(root, text="Model")
        label1.pack(anchor=W)
        frame1 = Frame(root,relief=GROOVE, borderwidth=2)
        frame1.pack(anchor=W,expand=YES, fill=BOTH)

        self.var1 = IntVar()
        for text, value in [('BMW',0),('Fiat',1),('Opel',2)]:
            Radiobutton(frame1,text=text, value=value, variable=self.var1).grid(
                            row = value, column = 0, padx = 5, pady = 5, sticky=W)

        label2 = Label(root, text="Systems & Accesories")
        label2.pack(anchor=W)        
        frame2 = Frame(root,relief=GROOVE, borderwidth=2)
        frame2.pack(anchor=W,expand=YES, fill=BOTH)
        self.vars=[]

        for system, row, col, status in [('Parking Sensor', 3,0,NORMAL),
                                             ('EPS', 3,1, NORMAL),
                                             ('AC', 3,2,NORMAL),
                                             ('CL', 3,3,NORMAL),
                                             ('Navigation', 4,0,NORMAL),
                                             ('ASR',4,1,NORMAL),
                                             ('ABS', 4,2,NORMAL),
                                             ('ISA', 4,3,NORMAL)]:
            var = IntVar()
            Checkbutton(frame2, text=system, state=status,
                        anchor=W, variable = var).grid(row=row, column=col,
                                                       padx = 5, pady = 5, sticky=W)
            self.vars.append(var)

        btn1 = Button(root, text='Calculate Price', command = self.fun)
        btn1.pack(side=LEFT, expand=YES, fill=BOTH)
         
    def fun(self):
        i = self.var1.get()
        print(i)
        p=0
        if(i==0):
            p=220000
        elif (i==1):
            p=65000
        elif (i==2):
            p=43000

        result = 0
        acc = [1000, 1500, 800, 2000, 2600,1300,900,2100]
        for i in range(0,len(self.vars)):
            if(self.vars[i].get()==1):
                result += acc[i]    
        messagebox.showinfo('Car price',str(p+result)+' zl')

def main():
    t = Tk()
    t.title('Car Selling')
    t.geometry("300x250")
    rb = Chb(t)
    t.mainloop()

main()