# How to get face normal's x or y axis vector (or matrix)?

## Is it possible to get vector of the x or y axis of face's normal orentation?

I know it's possible to get z axis of face's orientation like this

 bpy.data.objects["Cube"].data.polygons[0].normal

However, I can't find a way to access x or y axis vector of normal orientation.

An expression like bpy.data.objects["Cube"].matrix_world (this express object local orientation) is also ok.

If these is no direct access, is these a way to calculate it?

Sorry for poor English

obj = bpy.context.active_object