[Glade-users] AttributeError: 'NoneType' object has no attribute 'get_text'

[sraji.me at gmail.com (Raji Seetharaman)]

Hi all,
Im a newbie to glade.i developed a small gui addressbook application using
pygtk,python,mysql db. It was successful.
I tried the same application with glade. But i ended up with errors. I
couldn't able to find where my mistake is.
I desgined the code as follows.
1.It has one main window and four child dialogs.
2.In the main window, i have to fill in the text entry widget & if i press
'add', the data will get inserted into the database.This works fine.
   If i need to see whether  the record is inserted or not, i have to click
'view' button. As per my code the view dialog is blank.
3. If showdialog button is clicked, a child dialog appears, where i have to
enter old entry to update.
4. To update, i again use the main window, where i get the following error
                  Traceback (most recent call last):
  File "addressbookglade.py", line 63, in update
    self.ssn = self.wTree.get_widget("ssn").get_text()
    AttributeError: 'NoneType' object has no attribute 'get_text'
I dont know how to resolve this.
The code is available here http://pastebin.com/m28a4747e
What changes i have to make inside update method  and view method?

Can anyone suggest a good tutorial for glade?

Regards
Raji.S
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