import bpy


def all_subclasses(cls):
    return set(cls.__subclasses__()).union(
        [s for c in cls.__subclasses__() for s in all_subclasses(c)]
    )


def get_bl_default(prop: bpy.types.Property):
    """Get the default value of a Blender property"""
    if getattr(prop, "is_array", False):
        return list(prop.default_array)
    elif hasattr(prop, "default"):
        return prop.default


def set_bl_attribute(bl_object, attr, value):
    try:
        setattr(bl_object, attr, value)
    except Exception as e:
        print(e)