[pygobject] docs: Ignore meta-class bases in dynamic docstring generation

[Simon Feltman <sfeltman src gnome org>]

commit a070e712526e433c236753813acc3ef300f0d203
Author: Simon Feltman <sfeltman src gnome org>
Date:   Sat Mar 15 00:35:03 2014 -0700

    docs: Ignore meta-class bases in dynamic docstring generation
    
    Skip attempts at generating a doc string for GObject meta-class bases
    since they do not contain an __info__ attribute.
    This circumvents errors with documentation generators (Sphinx).

 gi/types.py |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/gi/types.py b/gi/types.py
index 4f0d76e..ce6d961 100644
--- a/gi/types.py
+++ b/gi/types.py
@@ -197,7 +197,7 @@ _gobject._install_metaclass(_GObjectMetaBase)
 
 
 class GObjectMeta(_GObjectMetaBase, MetaClassHelper):
-
+    """Meta class used for GI GObject based types."""
     def __init__(cls, name, bases, dict_):
         super(GObjectMeta, cls).__init__(name, bases, dict_)
         is_gi_defined = False
@@ -225,6 +225,8 @@ class GObjectMeta(_GObjectMetaBase, MetaClassHelper):
 
     @property
     def __doc__(cls):
+        if cls == GObjectMeta:
+            return ''
         return generate_doc_string(cls.__info__)
 
 
@@ -289,6 +291,7 @@ def mro(C):
 
 
 class StructMeta(type, MetaClassHelper):
+    """Meta class used for GI Struct based types."""
 
     def __init__(cls, name, bases, dict_):
         super(StructMeta, cls).__init__(name, bases, dict_)
@@ -310,4 +313,6 @@ class StructMeta(type, MetaClassHelper):
 
     @property
     def __doc__(cls):
+        if cls == StructMeta:
+            return ''
         return generate_doc_string(cls.__info__)