Python:ExampleProgram

##### ATM #####----------------------------------------------------------------------------------------------------
from random import randint
import time
import tkinter
from tkinter import*
##### Storeing Account Info and Functions #####--------------------------------------------------------------------

def Balance():
    global balance
    balance = 0

def Deposit():
    balance = balance + Deposit_Amount

def Withdraw():
    balance = balance - Withdraw_Amount

##### MAIN FRONT GUI #####-----------------------------------------------------------------------------------------

global pin

pin = 8888

maingui = tkinter.Tk()
maingui.title('User Login')
maingui.geometry('800x650+0+0')

titleframe = Frame(maingui, height=200, width=1600, bg='grey', relief=SUNKEN)
titleframe.pack(side=TOP)

pineframe = Frame(maingui, height=600, width=1600, bg='silver', relief=SUNKEN)
pineframe.pack(side=TOP)

time = time.ctime()

titlelabel = Label(titleframe, font=('arial', 50, 'bold'), text='ATM', fg='black', bd=10, anchor='w')
titlelabel.grid(row=0, column=0)

timelabel = Label(titleframe, font=('arial', 50, 'bold'), text=time, fg='black', bd=10, anchor='w')
timelabel.grid(row=1, column=0)

enterpinlabel = Label(titleframe, font=('arial', 50, 'bold'), text='Enter Your PIN', fg='black', bd=10, anchor='n')
enterpinlabel.grid(row=2, column=0)
####### Account GUI ########-----------------------------------------------------------------------------------
def Open_Account():
    account = tkinter.Tk()
    account.title('Account')
    account.geometry('1600x800+0+0')
    account.mainloop()
####### Pin Button Functions ########--------------------------------------------------------------------------
text_Input = StringVar()
operator = ''
def btnClick(numbers):
    global operator
    operator = operator + str(numbers)
    text_Input.set(operator)

def btnClear(numbers):
    global operator
    operator = ''
    text_Input.set('')

def btnEnter():
    if pindisplay.get != pin:
        print('Wrong Pin')
    elif pindisplay.get == '8888':
        text_Input.set('****')
        Open_Account()

def btnCancel():
    maingui.destroy()




####### Pin Entry ########-------------------------------------------------------------------------------------
pindisplay = Entry(pineframe, textvariable=text_Input, bd=30, insertwidth=4, bg='white', justify='center')
pindisplay.grid(columnspan=4)
####### 1 - 3 ########-----------------------------------------------------------------------------------------
n1 = Button(pineframe, padx=16,pady=16,bd=8, fg='black', text='1', bg='white', command=lambda: btnClick(1))
n1.grid(row=2, column=1)
#--
n2 = Button(pineframe, padx=16,pady=16,bd=8, fg='black', text='2', bg='white', command=lambda: btnClick(2))
n2.grid(row=2, column=2)
#--
n3 = Button(pineframe, padx=16,pady=16,bd=8, fg='black', text='3', bg='white', command=lambda: btnClick(3))
n3.grid(row=2, column=3)
####### 4 - 6 ########-----------------------------------------------------------------------------------------
n4 = Button(pineframe, padx=16,pady=16,bd=8, fg='black', text='4', bg='white', command=lambda: btnClick(4))
n4.grid(row=3, column=1)
#--
n5 = Button(pineframe, padx=16,pady=16,bd=8, fg='black', text='5', bg='white', command=lambda: btnClick(5))
n5.grid(row=3, column=2)
#--
n6 = Button(pineframe, padx=16,pady=16,bd=8, fg='black', text='6', bg='white', command=lambda: btnClick(6))
n6.grid(row=3, column=3)
####### 7 - 9 ########-----------------------------------------------------------------------------------------
n7 = Button(pineframe, padx=16,pady=16,bd=8, fg='black', text='7', bg='white', command=lambda: btnClick(7))
n7.grid(row=4, column=1)
#--
n8 = Button(pineframe, padx=16,pady=16,bd=8, fg='black', text='8', bg='white', command=lambda: btnClick(8))
n8.grid(row=4, column=2)
#--
n9 = Button(pineframe, padx=16,pady=16,bd=8, fg='black', text='9', bg='white', command=lambda: btnClick(9))
n9.grid(row=4, column=3)
####### 0 ########---------------------------------------------------------------------------------------------
nblank1 = Button(pineframe, padx=20,pady=16,bd=8, fg='black', text='', bg='white')
nblank1.grid(row=5, column=1)
#--
n0 = Button(pineframe, padx=16,pady=16,bd=8, fg='black', text='0', bg='white', command=lambda: btnClick(0))
n0.grid(row=5, column=2)
#--
nblank2 = Button(pineframe, padx=20,pady=16,bd=8, fg='black', text='', bg='white')
nblank2.grid(row=5, column=3)
####### Extra Buttons ########---------------------------------------------------------------------------------
cancel = Button(pineframe, padx=11,pady=16,bd=8, fg='black', text='Cancel', bg='red', command=btnCancel)
cancel.grid(row=2, column=4)
#--
clear = Button(pineframe, padx=16,pady=16,bd=8, fg='black', text='Clear', bg='yellow', command=lambda: btnClear(11))
clear.grid(row=3, column=4)
#--
enter = Button(pineframe, padx=16,pady=16,bd=8, fg='black', text='Enter', bg='green', command=lambda: btnEnter())
enter.grid(row=4, column=4)
#--
blank3 = Button(pineframe, padx=27,pady=16,bd=8, fg='black', text='', bg='white')
blank3.grid(row=5, column=4)

maingui.mainloop()