View Full Version : [SOLVED] Very Basic Question about Quickly

May 31st, 2010, 09:17 PM
I am new to Linux and Python programming. I watched all of the YouTube tutorials on Quickly and went through the user guide that ships with it.

I'm trying to create a simple "hello world" program that changes a label's text to "hello world" when a button is clicked. I've been stuck for hours.

Here's what I did:

I created a new Quickly program titled "helloworld"

quickly create ubuntu-application helloworldI changed to the directory and ran Glade:

quickly design

I deleted image1 and replaced it with a button (button1)

I added an event handler (signal) for on_button1_clicked

I saved the design in Glade and ran Quickly edit

Under the on_destroy function, I wrote the following function:

def on_button1_clicked(self, widget, data=None):
# called when button clicked
label1.label = 'hello'And I got the error:

Traceback (most recent call last):
File "bin/helloworld", line 117, in on_button1_clicked
label1.label = 'hello'
NameError: global name 'label1' is not definedAlso, in reviewing the code in the editor, I thought I'd try changing the above to self.label1.label = 'hello' but got the error:

File "bin/helloworld", line 117, in on_button1_clicked
self.label1.label = 'hello'
AttributeError: 'HelloworldWindow' object has no attribute 'label1'I'm obviously missing something very basic. Could you please point me in the right direction? Perhaps there's a basic tutorial out there that I cannot find.


June 1st, 2010, 04:47 AM
I figured it out.

First, I added a line of code after the following comment:

# Code for other initialization actions should be added here.
self.label1 = self.builder.get_object('label1')Then I added the following function, right after the on_destroy function:

def on_button1_clicked(self, widget, data=None):
self.label1.set_text("hello world!")