GUI, Buttons not displaying in window

Question

For my homework, I have to create a widget. I'm very new to this. I'm trying to get my buttons to show up. I have tried packing them, but I don't know what I'm doing wrong. Here is what I have.

from tkinter import *
import turtle
main = Tk()
main.title("TurtleApp")

class turtleApp:

  def __init_(self):
    self.main = main
    self.step = 10
    self.turtle = turtle.Turtle()
    self.window = turtle.Screen()
    self.createDirectionPad

  def createDirectionPad(self):
    mainFrame = Frame(main)
    mainFrame.pack()
    button1 = Button(mainFrame,text = "left", fg="red")
    button2 = Button(mainFrame,text = "right", fg="red")
    button3 = Button(mainFrame,text = "up", fg="red")
    button4= Button(mainFrame,text = "down", fg="red")
    button1.pack()
    button2.pack()
    button3.pack()
    button4.pack()

main.mainloop()

Suever · Accepted Answer · 2016-07-28 00:47:01Z

2

First of all your indentation is off, but once you fix that, you never actually create an instance of your turtleApp class, so none of that code ever gets executed leaving you with an empty GUI.

# Actually create a turtleApp instance which adds the buttons
app = turtleApp()

# Enter your main event loop
main.mainloop()

You also need to actually call createDirectionPad within __init__ using explicit (). As it is, self.createDirectionPad (without the ()) just creates a reference to the method and doesn't actually call it.

def __init__(self):
    # other stuff
    self.createDirectionPad()

Update

You also have a typo in your __init__ function declaration. You are missing the final _ in __init__

edited Jul 28, 2016 at 0:47

answered Jul 27, 2016 at 23:39

Suever

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8 Comments

Mia Over a year ago

it's still not running after I create the instance

Suever Over a year ago

@Mia Updated above

Mia Over a year ago

I saw and fixed that after I posted the code. Apparently, there's another problem in my code that I'm not seeing.

Suever Over a year ago

@Mia Did you see my update about calling createDirectionPad() ?

Suever Over a year ago

@Mia What is window? that isn't defined.

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