getting error on IDPropertyGroup and PointerProperty [solved]

Coding Python Support
#1

can anyone point me what is going wrong here :
[ just copy and paste in console ]

class Test_sett(bpy.types.IDPropertyGroup):pass

Test_sett.StringProperty(attr="username",
                         name="Username",
                         description="Username",
                         maxlen=64,default="")
Test_sett.StringProperty(attr="password",
                         name="Password",
                         description="Password",
                         maxlen=64,
                         default="")
bpy.types.Scene.PointerProperty(attr="competition_login_settings",
                                type=Test_sett,
                                name="Test_sett",
                                description="Settings")

here is the error:

Traceback (most recent call last):
  File "<blender_console>", line 1, in <module>
TypeError: PointerProperty(...): expected an RNA type derived 
from IDPropertyGroup, failed with: SystemError: BoolProperty(...): internal error, 
self of type 'type' had no bl_rna attribute, should never happen

helping hands will be rewarded :smiley:

#2

its a python decorator problem
just need to add


def rnaType(rna_type):
    if bpy: bpy.types.register(rna_type)
    return rna_type

@rnaType
class Test_sett(bpy.types.IDPropertyGroup):pass

to get things working…
also applicable to this script in this post

http://blenderartists.org/forum/showthread.php?t=179694

if you want to see that script working in Blender 2.5 Beta

#3

can you upload latest script with this new code in it

would be easier to try to understand it

keep up the good work
happy 2.5

#4 

from bpy import ops , context, data, types


def rnaType(rna_type):
    ##    this will check whether module 'types' is loaded
    if types:
        ##    this will register our custom class ap_CameraExport
        types.register(rna_type)
    ##    and the interesting thing is that
    ##    it will return the same class back to us
    ##    or that is what is known as decorator afaik
    return rna_type

##    this little guy with @ symbol means the class ap_CameraExport has to pass through
##    function rnaType at the time of builing , more info : google 
@rnaType
class ap_CameraExport( types.IDPropertyGroup):
    pass


ap_CameraExport.EnumProperty(attr="mode",
                        items=(
                                        ("STYLE_AE", "After Effects", "Export Adobe Javascript"),
                                        ("STYLE_MAX", "3DS Max", "Export Discreet MaxScript"),
                                    ),
                        name="Output mode",
                        description="Mode of generated ASCII text",
                        default="STYLE_AE")

types.Scene.PointerProperty(attr = "export_style",
                            type = ap_CameraExport,
                            name = "Export Style",
                            description= "Camera Export Style")


class OBJECT_PT_hello( types.Panel):
    bl_label = "Hello World Panel"
    bl_space_type = "PROPERTIES"
    bl_region_type = "WINDOW"
    bl_context = "scene"

    def draw(self, context):
        layout = self.layout

        obj = context.object
        scene = context.scene

        row = layout.row()
        row.label(text="Hello World!", icon='WORLD_DATA')
        
        exportStyle = scene.export_style
        layout.prop(exportStyle, "mode", expand=False)
        layout.prop(exportStyle, "mode", expand=True)

        row = layout.row()
        row.label(text="Active object is: " + obj.name)
        row = layout.row()
        row.prop(obj, "name")

def register():   
    types.register(OBJECT_PT_hello)
def unregister():   
    types.unregister(OBJECT_PT_hello)   
if __name__ == '__main__':
    register()

if there is any problem let me know…