Mesh exporter to Ogre uses this method to check, if vertex is member of group, and to get its weight. If vertex doesn’t belong to group, warning is printed to console (“vertex at index 0 is not assigned to a vertex group…”). This results in printing a thousands of lines for every moderate character model (500 vertices, 10 vertex groups), and it slows down mesh export significantly. Can be this warning removed from Blender Python API?
just remove the print line from the exporter - it will still work.
this message is not printed by exporter, blender python api displays it.