My first GUI - Printable Version

Code:
from Tkinter import *

from tkMessageBox import showinfo

import random 



money = 0

round = 0



class gooey(Frame):

    def __init__(self, parent=None):

        global money

        global e

        global r

        global round

        Frame.__init__(self, parent)

        Label(text='Money').pack(side=BOTTOM)

        e = Entry(money)

        e.pack(side=BOTTOM)

        Label(text='Round').pack(side=BOTTOM)

        r = Entry(round)

        r.pack(side=BOTTOM)

        button1 = Button(self, text='Press me', command=self.btn1)

        button1.pack()

        button2 = Button(self, text='Press me', command=self.btn2)

        button2.pack(side=RIGHT)

        button3 = Button(self, text='Press me', command=self.btn3)

        button3.pack(side=LEFT)

    def btn1(self):

        global money

        global e

        global r

        global round

        a = 'You win, Congrats!'

        b = 'You lose, Sorry :('

        c = [a , b]

        d = random.choice(c)

        showinfo(title='Result', message=d)

        if d==a:

            money += 100

            e.delete(0, END)

            e.insert(0, money)

            round += 1

            r.delete(0, END)

            r.insert(0, round)

            self

        if d==b:

            money -=100

            e.delete(0, END)

            e.insert(0,  money)

            round +=1

            r.delete(0, END)

            r.insert(0, round)

            self

                     

    def btn2(self):

        global money

        global e

        global r

        global round

        a = 'You win, Congrats!'

        b = 'You lose, Sorry :('

        c = [a , b]

        d = random.choice(c)

        showinfo(title='Result', message=d)

        if d==a:

            money += 100

            e.delete(0, END)

            e.insert(0, money)

            round += 1

            r.delete(0, END)

            r.insert(0, round)

            self

        if d==b:

            money -=100

            e.delete(0, END)

            e.insert(0,  money)

            round += 1

            r.delete(0, END)

            r.insert(0,  round)

            self



                     

    def btn3(self):

        global money

        global e

        global r

        global round

        a = 'You win, Congrats!'

        b = 'You lose, Sorry :('

        c = [a , b]

        d = random.choice(c)

        showinfo(title='Result', message=d)

        if d==a:

            money += 100

            e.delete(0, END)

            e.insert(0,  money)

            round += 1

            r.delete(0, END)

            r.insert(0,  round)

            self

        if d==b:

            money -=100

            e.delete(0, END)

            e.insert(0,  money)

            round += 1

            r.delete(0, END)

            r.insert(0,  round)

            self



        

if __name__ == '__main__':

    window = gooey()

    window.pack()

    window.mainloop()