Load GUI from a Glade with GtkSourceView in PyGObject

Question

I'm trying to use a Glade file that has a GtkSourceView widget in PyGObject. I've wrote a little guide on how to start using the new GtkSourceView 3.0 in Glade: http://cjenkins.wordpress.com/2012/05/08/use-gtksourceview-widget-in-glade/ The problem is when I want to load that Glade from PyGObject: ``` from gi.repository import Gtk, GtkSource from os.path import abspath, dirname, join WHERE_AM_I = abspath(dirname(__file__)) class MyApp(object): def __init__(self): self.builder = Gtk.Builder() self.glade_file = join(WHERE_AM_I, 'test.glade') self.builder.add_from_file(self.glade_file) if __name__ == '__main__': try: gui = MyApp() Gtk.main() except KeyboardInterrupt: pass ``` When I run that file I got this error: ``` Traceback (most recent call last): File "test.py", line 15, in <module> gui = MyApp() File "test.py", line 11, in __init__ self.builder.add_from_file(self.glade_file) File "/usr/lib/python2.7/dist-packages/gi/types.py", line 43, in function return info.invoke(*args, **kwarg…

Accepted Answer

I figured it out :D I just needed to register the new type in GObject before calling add_from_file() as I suspected. Just needed to add GObject in the imports from gi.repository and call type_register() like this:

```
from gi.repository import Gtk, GtkSource, GObject
from os.path import abspath, dirname, join

WHERE_AM_I = abspath(dirname(__file__))

class MyApp(object):

def __init__(self):
        self.builder = Gtk.Builder()
        self.glade_file = join(WHERE_AM_I, 'test.glade')
        GObject.type_register(GtkSource.View)
        self.builder.add_from_file(self.glade_file)

if __name__ == '__main__':
    try:
        gui = MyApp()
        Gtk.main()
    except KeyboardInterrupt:
        pass
```

I'll update the page with this info.

Kind regards

Load GUI from a Glade with GtkSourceView in PyGObject

Solution

Problem