#. run your python code, which creates a 2D mesh,
#. invoke **Compute** command, which computes a 3D mesh.
-.. warning:: **Use Edges to be Created Manually** and **Use Faces to be Created Manually** algorithms should be assigned *before* mesh generation by the Python code.
+ .. warning::
+ * **Use Edges to be Created Manually** and **Use Faces to be Created Manually** algorithms should be assigned *before* mesh generation by the Python code.
+ * Nodes and elements created in your script must be assigned to geometry entities by calling *SetMeshElementOnShape*, *SetNodeOnVertex*, *SetNodeOnEdge* etc. in order to be used by an algorithm of upper dimension.
Consider trying a sample script demonstrating the usage of :ref:`Use Faces to be Created Manually <tui_use_existing_faces>` algorithm for construction of a 2D mesh using Python commands.
