Question

I’ve been writing writing a small pygtk application using glade to put together the UIs. I’ve created several windows already that work, but for some reason this one isn’t working. I get the following traceback:

Traceback (most recent call last):   File 'test.py', line 7, in <module>     class TestClass:   File 'test.py', line 10, in TestClass     self.wTree.signal_autoconnect(self) NameError: name 'self' is not defined 

Here is the contents of test.py:

#!/usr/bin/env python  import pygtk import gtk import gtk.glade  class TestClass:     def __init__(self):         self.wTree = gtk.glade.XML('test.glade')         self.wTree.signal_autoconnect(self)      def on_TestClass_destroy(self, widget, data):         gtk.main_quit()  if __name__ == '__main__':     window = TestClass()     gtk.main() 

And here is the glade file, test.glade:

<?xml version='1.0' encoding='UTF-8' standalone='no'?> <!DOCTYPE glade-interface SYSTEM 'glade-2.0.dtd'> <!--Generated with glade3 3.4.5 on Fri Nov 21 08:53:53 2008 --> <glade-interface>   <widget class='GtkWindow' id='TestWindow'>     <property name='visible'>True</property>     <property name='title' translatable='yes'>Test Window</property>     <signal name='destroy' handler='on_TestClass_destroy'/>     <child>       <placeholder/>     </child>   </widget> </glade-interface> 

The strange thing is that if I take out the signal_autoconnect(self) call, the window opens. But if I replace that call with ‘self.on_TestClass_destroy(self, None, None)’ instead, it returns the same NameError exception.

I really don’t understand why this isn’t working, as I’ve created several other window classes that work fine.

Is the following code working for anyone here?

Answer 1

That code and window and signal connection work fine here.

There is a small bug though when calling the signal handler. The signal handler should not have a data argument, since only the widget is passed as an argument.

def on_TestClass_destroy(self, widget):     gtk.main_quit() 

The data argument(s) are only those provided on connect in case you need extra state for a signal handler.