import bpy

# Get first selected object
ob = bpy.context.active_object

# Get the faces of the selected object
faces = ob.data.polygons

bpy.ops.object.mode_set(mode = 'EDIT')
bpy.ops.mesh.select_all(action = 'DESELECT')
bpy.ops.object.mode_set(mode = 'OBJECT')

print(len(faces))

for i in range(len(faces)):
    face = faces[i]
    face.select = True
    bpy.ops.object.mode_set(mode = 'EDIT')
    bpy.ops.mesh.extrude_region_move(TRANSFORM_OT_translate={"value": face.normal, "constraint_orientation" : 'NORMAL' })
    bpy.ops.transform.resize( value=( 0.5, 0.5, 0.5 ), constraint_orientation='LOCAL' )
    bpy.ops.transform.rotate(value=-.5, axis= face.normal)
    bpy.ops.mesh.select_all(action = 'DESELECT')
    bpy.ops.object.mode_set(mode = 'OBJECT')
    face.select = False