def __init__(self):

        self.main_window = tkinter.Tk()

        self.top_frame = tkinter.Frame()
        self.bottom_frame = tkinter.Frame()

        self.prompt_label = tkinter.Label(self.top_frame, text='Enter employee ID:')
        self.employee_entry = tkinter.Entry(self.top_frame, width=10)

        self.prompt_label.pack(side='left')
        self.employee_entry.pack(side='left')

        self.add_button = tkinter.Button(self.bottom_frame,text='Add', command=self.employee_add)
        self.edit_button = tkinter.Button(self.bottom_frame, text='Edit', command=self.employee_edit)
        self.payroll_button = tkinter.Button(self.bottom_frame, text='Payroll', command=self.employee_payroll)

        self.add_button.pack(side='left')
        self.edit_button.pack(side='left')
        self.payroll_button.pack(side='left')

        self.top_frame.pack()
        self.bottom_frame.pack()

        tkinter.mainloop()

def code_list():
    var2 = tk.StringVar()
    for each in codes.values():
        import os

        if each[1] == 0:
            my_file = open("Slist.txt", "a")
            my_file.write("\n")
            my_file.write(each[0])
            my_file.close()
            each[1] = 2
            continue

        def code_print():
            admin = var2.get()
            if admin == "-1":
                import os

                os.startfile("C:/Users/Tiger/Desktop/Login Files/Slist.txt", "print")

        class PrintSC:
            LARGE_FONT = ("Verdana", 39)
            label6 = tk.Label(text="    ", font=LARGE_FONT)
            label6.pack()
            label5 = tk.Label(text="Enter Admin Code to print", font=LARGE_FONT)
            label5.pack(pady=10, padx=10)
            entry2 = tk.Entry(textvariable=var2, width=35, font=LARGE_FONT)
            entry2.pack()
            button3 = tk.Button(text="Enter", command=code_print, width=10, font=LARGE_FONT)
            button3.pack()
            button4 = tk.Button(text="Exit", command=code_end, width=10, font=LARGE_FONT)
            button4.pack()

        tk.mainloop()

def main():

    class DownloadTaskHandler(Thread):

        def run(self):
            # 模拟下载任务需要花费10秒钟时间
            time.sleep(10)
            tkinter.messagebox.showinfo('提示', '下载完成!')
            # 启用下载按钮
            button1.config(state=tkinter.NORMAL)

    def download():
        # 禁用下载按钮
        button1.config(state=tkinter.DISABLED)
        # 通过daemon参数将线程设置为守护线程(主程序退出就不再保留执行)
        DownloadTaskHandler(daemon=True).start()

    def show_about():
        tkinter.messagebox.showinfo('关于', '作者: 骆昊(v1.0)')

    top = tkinter.Tk()
    top.title('单线程')
    top.geometry('200x150')
    top.wm_attributes('-topmost', 1)

    panel = tkinter.Frame(top)
    button1 = tkinter.Button(panel, text='下载', command=download)
    button1.pack(side='left')
    button2 = tkinter.Button(panel, text='关于', command=show_about)
    button2.pack(side='right')
    panel.pack(side='bottom')

    tkinter.mainloop()

    def __init__(self):
        #create the main window widget
        self.main_window=tkinter.Tk()

        #Create a Button Widget. The text
        #Should appear on the face of the button. The
        #do_something method should execute when the
        #user click the Button.

        self.my_button1=tkinter.Button(self.main_window,                                      text='10 Digit ISBN Check',                                      command=self.check_digit_10)
        self.my_button2=tkinter.Button(self.main_window,                                        text='13 Digit ISBN Check',                                        command=self.check_digit_13)
        self.my_button3=tkinter.Button(self.main_window,                                       text='Convert 10 to 13 ISBN',                                       command=self.convert_10_to_13)
        self.my_button4=tkinter.Button(self.main_window,                                       text='Convert 13 to 10 ISBN',                                       command=self.convert_13_to_10)
        
    

        #Create a Quit Button. When this button is clicked the root
        #widget's destroy method is called.
        #(The main_window variable references the root widget, so the
        #callback function is self.main_window.destroy.)

        self.quit_button=tkinter.Button(self.main_window,                                        text='Quit',                                        command=self.main_window.destroy)
        #pack the buttons
        self.my_button1.pack()
        self.my_button2.pack()
        self.my_button3.pack()
        self.my_button4.pack()
        self.quit_button.pack()

        #Enter the tkinter main loop
        tkinter.mainloop()

	def __init__(self):
		'''
		Constructor
		'''
		self.main_window = tkinter.Tk()
		self.top_frame = tkinter.Frame(self.main_window)
		self.mid_frame = tkinter.Frame(self.main_window)
		self.bottom_frame = tkinter.Frame(self.main_window)

		self.name_label = tkinter.Label(self.top_frame, text="Name:")
		self.name_entry = tkinter.Entry(self.top_frame, width=10)

		self.name_label.pack(side="left")
		self.name_entry.pack(side="left")

		# create a variable to store the greeting output and a label to update the greeting message in the window
		self.output_greeting = tkinter.StringVar()
		self.the_greeting = tkinter.Label(self.mid_frame, textvariable=self.output_greeting)
		self.the_greeting.pack(side="left")

		self.greeting_button = tkinter.Button(self.bottom_frame, text="Greet!", command=self.greet)
		self.exit_button = tkinter.Button(self.bottom_frame, text="Exit!", command=self.main_window.destroy)

		self.greeting_button.pack(side="top")
		self.exit_button.pack(side="top")

		self.top_frame.pack()
		self.mid_frame.pack()
		self.bottom_frame.pack()

		tkinter.mainloop()

def mb_to_tkinter(maxiters, xmin, xmax, ymin, ymax, imgwd, imght):
    try:
        import tkinter as tk
    except ImportError:
        import Tkinter as tk
    
    array_ = get_mandelbrot(maxiters, xmin, xmax, ymin, ymax, imgwd, imght)
    window = tk.Tk()
    canvas = tk.Canvas(window, width=imgwd, height=imght, bg="#000000")
    img = tk.PhotoImage(width=imgwd, height=imght)
    canvas.create_image((0, 0), image=img, state="normal", anchor=tk.NW)

    i = 0
    for y in range(imght):
        for x in range(imgwd):
            n = array_[i]
            color = escapeval_to_color(n, maxiters)
            r = hex(color[0])[2:].zfill(2)
            g = hex(color[1])[2:].zfill(2)
            b = hex(color[2])[2:].zfill(2)
            img.put("#" + r + g + b, (x, y))     
            i += 1
            
    println("mb_to_tkinter %s" % time.asctime())
    canvas.pack()
    tk.mainloop()

def trial(do_box, do_hull, n):
    print('generating n=' + str(n) + ' points...')
    points = random_points(n)
    hull = []
    
    if do_box:
        print('bounding box...')
        start = time.perf_counter()
        (x_min, y_min, x_max, y_max) = bounding_box(points)
        end = time.perf_counter()
        print('elapsed time = {0:10.6f} seconds'.format(end - start))

    if do_hull:
        print('convex hull...')
        start = time.perf_counter()
        hull = convex_hull(points)
        end = time.perf_counter()
        print('elapsed time = {0:10.6f} seconds'.format(end - start))

    w = tkinter.Canvas(tkinter.Tk(),
                       width=CANVAS_WIDTH, 
                       height=CANVAS_HEIGHT)
    w.pack()

    if do_box:
        w.create_polygon([canvas_x(x_min), canvas_y(y_min),
                          canvas_x(x_min), canvas_y(y_max),
                          canvas_x(x_max), canvas_y(y_max),
                          canvas_x(x_max), canvas_y(y_min)],
                         outline=BOX_OUTLINE_COLOR,
                         fill=BOX_FILL_COLOR,
                         width=OUTLINE_WIDTH)

    if do_hull:
        vertices = []
        for p in clockwise(hull):
            vertices.append(canvas_x(p.x))
            vertices.append(canvas_y(p.y))

        w.create_polygon(vertices,
                         outline=HULL_OUTLINE_COLOR,
                         fill=HULL_FILL_COLOR,
                         width=OUTLINE_WIDTH)
    #to aid in debug...
    for p in hull:
        w.create_oval(canvas_x(p.x) - POINT_RADIUS,
                      canvas_y(p.y) - POINT_RADIUS,
                      canvas_x(p.x) + POINT_RADIUS,
                      canvas_y(p.y) + POINT_RADIUS,
                      fill='magenta')
    
    for p in points:
        if p not in hull:
            w.create_oval(canvas_x(p.x) - POINT_RADIUS,
                      canvas_y(p.y) - POINT_RADIUS,
                      canvas_x(p.x) + POINT_RADIUS,
                      canvas_y(p.y) + POINT_RADIUS,
                      fill=INTERIOR_POINT_COLOR)

    tkinter.mainloop()

    def __init__(self):

        def run_payroll_button():
            self.main_window.destroy()
            src.accounting.run_payroll.RunPayroll()
            src.views.payroll_complete_gui.RunPayrollGUI()

        def cancel_payroll_button():
            self.main_window.destroy()
            src.views.main_gui.MainGUI()

        self.main_window = tkinter.Tk()

        self.bottom_frame = tkinter.Frame(self.main_window)

        canvas = Canvas(width=1250, height=720, bg='black')

        canvas.pack(expand=YES, fill=BOTH)

        gif2 = PhotoImage(file='../src/images/wallpaper.gif')
        canvas.create_image(0, 0, image=gif2, anchor=NW)

        start_button = Button(canvas, text="Start Daily Payroll", command=run_payroll_button, anchor=W)
        start_button.configure(width=15, activebackground="#33B5E5", relief=FLAT)
        start_button_window = canvas.create_window(450, 375, anchor=NW, window=start_button)

        cancel_button = Button(canvas, text="Cancel", command=cancel_payroll_button, anchor=W)
        cancel_button.configure(width=15, activebackground="#33B5E5", relief=FLAT)
        cancel_button_window = canvas.create_window(650, 375, anchor=NW, window=cancel_button)

        tkinter.mainloop()

	def after_install_gui(self):


		top = tkinter.Tk()
		top.geometry('300x150')
		top.title("AutoTrace")

		label = tkinter.Label(top, text = "Welcome to Autotrace!",
			font = 'Helvetica -18 bold')
		label.pack(fill=tkinter.Y, expand=1)

		folder = tkinter.Button(top, text='Click here to view Autotrace files',
			command = lambda: (os.system("open "+self.github_path)))
		folder.pack()

		readme = tkinter.Button(top, text='ReadMe',
			command = lambda: (os.system("open "+os.path.join(self.github_path, "README.md"))), activeforeground ='blue',
			activebackground = 'green')
		readme.pack()

		apilsite = tkinter.Button(top, text='Look here for more info on the project',
			command = lambda: (webbrowser.open("http://apil.arizona.edu")), activeforeground = 'purple',
			activebackground = 'orange')
		apilsite.pack()

		quit = tkinter.Button(top, text='Quit',
			command=top.quit, activeforeground='red',
			activebackground='black')
		quit.pack()

		tkinter.mainloop()

def _selftest():
	class content:
		def __init__(self):
			Button(self, text='Larch', command=self.quit).pack()
			Button(self, text='Sing', command=self.destroy).pack()

	class contentmix(MainWindow, content):
		def __init__(self):
			MainWindow.__init__(self, 'mixin', 'Main')
			content.__init__(self)

	contentmix()

	class contentmix(PopupWindow, content):
		def __init__(self):
			PopupWindow.__init__(self, 'mixin', 'Popup')
			content.__init__(self)
	prev = contentmix()

	class contentmix(ComponentWindow, content):
		def __init__(self):
			ComponentWindow.__init__(self, prev)
			content.__init__(self)
	contentmix()

	class contentsub(PopupWindow):
		def __init__(self):
			PopupWindow.__init__(self, 'popup', 'subclass')
			Button(self, text='Pine', command=self.quit).pack()
			Button(self, text='Sing', command=self.destroy).pack()
	contentsub()
	win = PopupWindow('popup', 'attachment')
	Button(win, text='Redwood', command=win.quit).pack()
	Button(win, text='Sing', command=win.destroy).pack()
	mainloop()

def game_play():

    s= input("Resume (y/n)?")
    
    if s=="y":
        file = open("Nathansettings",'rb')
        x = pickle.load(file)
        y = pickle.load(file)
        file.close()
    else: x=y=100
    
    game_map = Map()
    game_map.x = x
    game_map.y = y

    game_map.make_arc()
    game_map.draw()

    
    # this tells the graphics system to go into an infinite loop and just follow whatever events come along.
    tkinter.mainloop()
    s= tkinter.messagebox.askyesno("Save state","Save?")
    if s:
        file = open("Nathansettings",'wb')
        pickle.dump(game_map.x,file)
        pickle.dump(game_map.y,file)
        file.close()

    print("Thanks for playing")
    game_map.root.destroy()

    def PropExchange3(self):
        # Get the user input fron the previous gui
        giveProp= self.propEntry.get()

        # Destroy previous Gui
        self.PropExchangeGUI2.destroy()

        # Validate player input
        if giveProp in self.__Player.get_PropertyDict() or giveProp == 'None':
            self.__TradeList.append(giveProp)
            
            # Create new GUI to get how much cash the player wants to give up or get
            self.PropExchangeGUI3= tkinter.Tk(className=' Trading Property')
                           
            # Display message to player
            self.cashLabel= tkinter.Label(self.PropExchangeGUI3, text='How much cash do you want to give?')
            # Get player to enter number
            self.cashEntry= tkinter.Entry(self.PropExchangeGUI3, width=20)
            # Create 'Confirm' button
            self.confirmButton= tkinter.Button(self.PropExchangeGUI3, text='Confirm', command=self.PropExchangeAction)

            # Pack Label, Entry and Button
            self.cashLabel.pack()
            self.cashEntry.pack()

            self.confirmButton.pack()

            tkinter.messagebox.showinfo('Information', "Enter a negative to GET cash from computer.\nEg. -240.90")
            tkinter.mainloop()
        else:
            tkinter.messagebox.showinfo('Warning', giveProp + " is not owned by you, squatter.\nEnter a property you LEGALLY own.")
            # Call the previous gui again to allow the player to reenter name
            self.PropExchange2()

    def PropExchange2(self):
        # Get user input from previous gui
        wantProp= self.propEntry.get()

        # Destroy previous Gui
        self.PropExchangeGUI1.destroy()

        # Validate player input
        if wantProp in self.__Danny.get_PropertyDict() or wantProp == 'None':
            self.__TradeList.append(wantProp)
            
            # Create new GUI to get name of properties the player wants to give up
            self.PropExchangeGUI2= tkinter.Tk(className=' Trading Property')

            # Display message to player
            self.propLabel= tkinter.Label(self.PropExchangeGUI2, text='Enter the name of the property you want to give up:')
            # Get player to enter name
            self.propEntry= tkinter.Entry(self.PropExchangeGUI2, width=20)
            # Create 'Confirm' button
            self.confirmButton= tkinter.Button(self.PropExchangeGUI2, text='Confirm', command=self.PropExchange3)

            # Pack Label, Entry and Button
            self.propLabel.pack()
            self.propEntry.pack()

            self.confirmButton.pack()
            tkinter.messagebox.showinfo(self.__Player.get_name() + "'s Property List", self.__Player.get_name() + 's Property List:\n' + self.__Player.getPropListasString())
            print("-- ", self.__Player.get_name(), "'s Property --", sep='')
            print('\n' + self.__Player.getPropListasString())
            tkinter.mainloop()
        else:
            tkinter.messagebox.showinfo('Warning', wantProp + " is not owned by Danny.\nEnter another property.")
            # Call the previous gui again to allow the player to reenter name
            self.PropExchange1()

	def __init__(self):
		# Create the main window widget.
		self.main_window = tkinter.Tk()

		# Create a Button widget. The text 'Click Me!'
		# should appear on the face of the Button. The
		# do_something method should be executed when
		# the user clicks the Button.
		self.my_button = tkinter.Button(self.main_window, \
		                                text='Click Me!', \
		                                command=self.do_something)

		# Create a Quit button. When this button is clicked
		# the root widget's destroy method is called.
		# (The main_window variable references the root widget,
		# so the callback function is self.main_window.destroy.)
		self.quit_button = tkinter.Button(self.main_window, \
		                                  text='Quit', \
		                                  command=self.main_window.destroy)

		# Pack the Buttons.
		self.my_button.pack()
		self.quit_button.pack()

		# Enter the tkinter main loop.
		tkinter.mainloop()

	def __init__(self):
		self.main_window = tkinter.Tk() #Create main window
		self.main_window.title('Paddocks - T3 G3')
		
		main_frame = self.create_frame() #Creates the main frame

		menu_frame = self.create_menu() #Create a menu to save, load, and quit
		
		title = tkinter.Label(self.main_window, \
						text = 'PADDOCKS', \
						font = ('Comic Sans MS',16)) # this is a lemonade stand right?

		file_instruct = tkinter.Label(self.main_window, \
						text = 'File to load / Save as :', \
						font = ('Comic Sans MS',10)) # this is a lemonade stand right?

		self.file_entry = tkinter.Entry(self.main_window, \
						width = 24) # lets user specify the file name to load/save
						
		instruct = tkinter.Label(self.main_window, \
						text = "HOW TO PLAY:\n- First person to finish 5 boxes wins!\n- Your boxes are marked with (H) and the computers are marked with (C).\n- To save or load a game, type in the name of the file you want to save as, or load.", \
						wraplength = 200)
						
		# specifies how the widgets above are placed in the window.				
		title.grid(row = 0, column = 0)
		file_instruct.grid(row = 1, column = 0)
		main_frame.grid(row = 2, column = 0)
		self.file_entry.grid(row = 1, column = 1)
		instruct.grid(row = 2, column = 1)
		menu_frame.grid(row = 0, column = 1)
		
		tkinter.mainloop()

 def __init__(self):
     self.main_window = tkinter.Tk()
     self.label1 = tkinter.Label(self.main_window, text="Hello World!")
     self.label2 = tkinter.Label(self.main_window, text="This is my GUI program.")
     self.label1.pack(side="left")
     self.label2.pack(side="left")
     tkinter.mainloop()

def main():
    # CALLING THE Tk constructor
    root = tkinter.Tk()
    
    # Calling the Canvas constructor
    cv = tkinter.Canvas(root)
    
    #mutator method call
    cv.pack()
    
    # Calling the RawTurtle constructor
    t = turtle.RawTurtle(cv)
    
    # Called two accessor methods
    print(t.xcor(), t.ycor())
    
    screen = t.getscreen()
    
    screen.addshape("cards/back.gif")
    
    for i in range(1,53):
        screen.addshape("cards/"+str(i)+".gif")
    
    t.shape("cards/1.gif")
    
    t.goto(100,100)
    #c = Card(0, cv, "cards/back.gif","cards/1.gif")
    tkinter.mainloop()

def contentChoiceDialog(parent):
    root = tkinter.Toplevel(parent)
    root.title('Content Selection')  
    global radio_result
    radio_result = tkinter.IntVar()
    number_of_columns = 3
    canvas_width = 220 * number_of_columns #Text box width + 2*padx
    canvas_height = 220 * 2 + 20 #(Text box height + 2*pady) * number of rows to display +20 pixels for submit button
    canvas_size = (canvas_width, canvas_height)
    content_choice = {'result' : None}

    root.grab_set()
    root.focus_set()
      
    main_frame = createMainFrame(root, canvas_size)

    query_results = sql.queryAll()
    
    my_list = makeListOfTextObjects(main_frame, query_results)
    createTextGrid(my_list, number_of_columns)
    addButtons(main_frame, number_of_columns, content_choice, root)

    root.bind("<Return>", lambda event: chooseContent(content_choice, root))
    root.bind("<Escape>", lambda event: cancelChoice(content_choice, root))

    tkinter.mainloop()

    return content_choice['result']

    def __init__(self):
        self.main_window = tkinter.Tk()

        self.top_frame = tkinter.Frame(self.main_window)
        self.middle_frame = tkinter.Frame(self.main_window)
        self.bottom_frame = tkinter.Frame(self.main_window)

        self.timeLabel = tkinter.Label(self.middle_frame, text='Enter Date in MM/DD/YYYY Format')
        self.startLabel = tkinter.Label(self.middle_frame, text = 'Start Date')
        self.start_entry = tkinter.Entry(self.middle_frame, width=10)
        self.endLabel = tkinter.Label(self.middle_frame, text="End Date")
        self.end_entry = tkinter.Entry(self.middle_frame, width=10)

        self.timeLabel.pack()
        self.startLabel.pack(side='left')
        self.start_entry.pack(side='left')
        self.endLabel.pack(side='left')
        self.end_entry.pack(side='left')

        self.enact_button = tkinter.Button(self.bottom_frame, text="Process Payroll", command=self.processChoice)
        self.quit_button = tkinter.Button(self.bottom_frame, text="Quit", command=self.main_window.destroy)

        self.enact_button.pack(side='left')
        self.quit_button.pack(side='left')

        self.top_frame.pack()
        self.middle_frame.pack()
        self.bottom_frame.pack()

        tkinter.mainloop()

    def __init__(self):

        def ok_button():
            self.main_window.destroy()
            src.views.main_gui.MainGUI()

        self.main_window = tkinter.Tk()

        self.bottom_frame = tkinter.Frame(self.main_window)

        canvas = Canvas(width=1250, height=720, bg='black')

        canvas.pack(expand=YES, fill=BOTH)

        gif2 = PhotoImage(file='../src/images/wallpaper.gif')
        canvas.create_image(0, 0, image=gif2, anchor=NW)

        response = Label(canvas, text= 'Payroll Process Complete' , fg='white', bg='black')
        response.pack
        response_window = canvas.create_window(448, 335, anchor=NW, window=response)

        start_button = Button(canvas, text="Return to Main Menu", command=ok_button, anchor=W)
        start_button.configure(width=15, activebackground="#33B5E5", relief=FLAT)
        start_button_window = canvas.create_window(450, 375, anchor=NW, window=start_button)

        quit_button = Button(canvas, text='Quit', command=self.main_window.destroy, anchor=W)
        quit_button.configure(width=10, activebackground="#33B5E5", relief=FLAT)
        quit_button_window = canvas.create_window(1080, 600, anchor=NW, window=quit_button)

        tkinter.mainloop()