[PyKDE] My thinking still wrong?

[Tina Isaksen]

Hello again,

I'm still wondering if I don't quite 'get it' as to how Python does 
things. I have the following where 'sourceMessage' is a QLineEdit and 
'mainTextWindow' is a QTextEdit:

def doUpdateSources(self):
        self.sourcesMessage.setEnabled(1)
        self.sourcesMessage.setText("Updating your sources, please wait...")
        os.chdir("/etc/apt/")
        self.mainTextWindow.setEnabled(1)
        self.mainTextWindow.setText(commands.getoutput("apt-get update"))
        self.mainTextWindow.append("Done!")
        self.mainTextWindow.scrollToBottom()
        self.pbSaveMain.setEnabled(0)
        self.mainTextWindow.setReadOnly(1)

This works but not as I expect it to work. I thought this would first 
display the the text in 'sourceMessage' before moving on line by line 
(changing directory, do the 'apt-get update' etc). But it seems like 
it's going through the entire function before actually output anything, 
the display everything when it reaches the end. So I guess I've fallen 
in the trap of old-time thinking again...

So what I want it to do is to display the 'please wait' in the 
sourceMessage *before* doing the 'commands.output', just as this little 
console script does:

        import commands
        def test():
            print "Please wait"
            print commands.getoutput("apt-get update")
            print "Done"

        test()


For the whole shebang (pun intended), should someone want to take a 
look, I have ziped up everything at:
http://www.bestemselv.com/admin_priv/tinaptpkg.tar.bz2

Thanks
Tina