[pybank] Restore lost conversion code

[Johan Dahlin <johan src gnome org>]

commit 6aa0cf06508443193486a1b70000591c1cd6765f
Author: Tomeu Vizoso <tomeu sugarlabs org>
Date:   Thu May 14 13:35:51 2009 +0200

    Restore lost conversion code
---
 bank/bank-argument.c |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/bank/bank-argument.c b/bank/bank-argument.c
index 464be8c..82cc712 100644
--- a/bank/bank-argument.c
+++ b/bank/bank-argument.c
@@ -275,6 +275,17 @@ pyg_argument_to_pyobject(GArgument *arg, GITypeInfo *type_info)
         } else if (interface_type == GI_INFO_TYPE_ENUM) {
             g_warning("pyg_argument_to_pyobject: enums not implemented");
             obj = Py_None;
+        } else if ( arg->v_pointer == NULL ) {
+            obj = Py_None;
+            Py_INCREF(obj);
+            return obj;
+        } else {
+            GValue value;
+            GObject* obj = arg->v_pointer;
+            GType gtype = G_OBJECT_TYPE(obj);
+            value.g_type = gtype;
+            value.data[0].v_pointer = obj;
+            return pyg_value_as_pyobject(&value, FALSE);
         }
         break;
     case GI_TYPE_TAG_ARRAY: