require_data

require_data(obj, data_type)

Return the object’s data-block, checked to be of the given type.

Object.data can be any of Blender’s data-block types (or None), so this helper narrows it to the expected type with a proper runtime check.

Parameters

Name	Type	Description	Default
obj	bpy.types.Object	The object to get the data-block from.	required
data_type	type[DataBlockT]	The expected type of the data-block (e.g. bpy.types.Mesh).	required

Returns

Name	Type	Description
	DataBlockT	The object’s data-block, guaranteed to be of the given type.

Raises

Name	Type	Description
	TypeError	If the object’s data is not of the expected type.