action nla set action to armature help?

There seem nothing that could help the script able to set an action to the armature from different actions.

I did a round about way but I end up breaking up the other objects that has the animations in their actions. Trying to deal with the exporting a object with the animation. There was something like this before in the 2.49b.

Here the code. Blender 2.50


import bpy
import mathutils
import operator

class VIEW3D_PT_ASLT(bpy.types.Panel):
    bl_space_type = "VIEW_3D"
    bl_region_type = "TOOLS"
    bl_label = "ASLT"
    
    def poll(self, context):
        return context.active_object
    
    def draw(self, context):
        layout = self.layout
        #layout.label(text="Unreal Tools")
        rd = context.scene
        layout.operator("object.BASLT")

class OBJECT_OT_BASLT(bpy.types.Operator):
    global exportmessage
    bl_idname = "OBJECT_OT_BASLT"
    bl_label = "BASLT"
    __doc__ = ""
    
    def invoke(self, context, event):
        print("Init Export Script:")
        for action in bpy.data.actions:#list of the actions
            for obj in bpy.data.objects:#list current object in the scene
                if obj.name == "Armature":#if Amature name is found execute
                    print("Current:",(obj.animation_data.action.name))#get current action name from armature object.
                    obj.animation_data.action = action #set armature animation to action current loop in the list
                    print("set action:",(obj.animation_data.action.name))#see what we set for the action
            
                    break
        #print(dir(bpy.data))

        return{'FINISHED'}    

def register():
    bpy.types.register(VIEW3D_PT_ASLT)
    bpy.types.register(OBJECT_OT_BASLT)
    
def unregister():
    bpy.types.unregister(VIEW3D_PT_ASLT)
    bpy.types.unregister(OBJECT_OT_BASLT)

if __name__ == "__main__":
    register()

It part of the code I tested. Not sure there a correctly way to set the action in the scene when it ready export. Any ideas?