Exppython:

- Fixed a problem with control of the global Python dictionary persistence:
    Blender.ReleaseGlobalDict(bool) should now work fine.
- Trying to fix the sigsegv crashes on Windows:
    They happen when we try to "print" our objects, like Lamps or Cameras.
    Following advice from the Python Embedding doc, removed the tp_print
    method from Camera and also improved its tp_repr one, that will be used
    as print, repr() and str() for Cameras.  If this test works all other objs
    will be updated accordingly.

source/blender/python/api2_2x/Camera.c

@@ -50,8 +50,9 @@ PyTypeObject Camera_Type =
   0,                             /* tp_itemsize */
   /* methods */
   (destructor)Camera_dealloc,    /* tp_dealloc */
-  (printfunc)Camera_print,       /* tp_print */
-  (getattrfunc)Camera_getAttr,   /* tp_getattr */
+//  (printfunc)Camera_print,       /* tp_print */
+  0,                             /* tp_print */
+	(getattrfunc)Camera_getAttr,   /* tp_getattr */
   (setattrfunc)Camera_setAttr,   /* tp_setattr */
   (cmpfunc)Camera_compare,       /* tp_compare */
   (reprfunc)Camera_repr,         /* tp_repr */
@@ -582,14 +583,14 @@ static int Camera_compare (BPy_Camera *a, BPy_Camera *b)
   Camera *pa = a->camera, *pb = b->camera;
   return (pa == pb) ? 0:-1;
 }
-
+/*
 static int Camera_print(BPy_Camera *self, FILE *fp, int flags)
 { 
   fprintf(fp, "[Camera \"%s\"]", self->camera->id.name+2);
   return 0;
 }
-
+*/
 static PyObject *Camera_repr (BPy_Camera *self)
 {
-  return PyString_FromString(self->camera->id.name+2);
+  return PyString_FromFormat("[Camera \"%s\"]", self->camera->id.name+2);
 }

source/blender/python/api2_2x/Camera.h

@@ -174,7 +174,7 @@ static PyMethodDef BPy_Camera_methods[] = {
 /* Python Camera_Type callback function prototypes:                          */
 /*****************************************************************************/
 static void Camera_dealloc (BPy_Camera *self);
-static int Camera_print (BPy_Camera *self, FILE *fp, int flags);
+//static int Camera_print (BPy_Camera *self, FILE *fp, int flags);
 static int Camera_setAttr (BPy_Camera *self, char *name, PyObject *v);
 static int Camera_compare (BPy_Camera *a, BPy_Camera *b);
 static PyObject *Camera_getAttr (BPy_Camera *self, char *name);

source/blender/python/api2_2x/Material.c

@@ -167,6 +167,8 @@ static PyObject *M_Material_New(PyObject *self, PyObject *args,
     return (EXPP_ReturnPyObjError (PyExc_RuntimeError,
                             "couldn't create Material Data in Blender"));
 
+  blmat->id.us = 0; /* was incref'ed by add_material() above */
+
   if (pymat == NULL)
     return (EXPP_ReturnPyObjError (PyExc_MemoryError,
                             "couldn't create Material Data object"));

source/blender/python/api2_2x/doc/Blender.py

@@ -15,6 +15,7 @@ Blender Python
  Submodules:
  -----------
 
+  - L{Material}
   - L{Camera}
   - L{Lamp}
   - L{BGL}