Alright so I just finished to study python (solo learn app ftw) to figure out how the python code works. For those interested:
node = hou.pwd()
geo = node.geometry()
#these came by default with Python SOP, don't change it.
nodeTrans = node.node("/obj/geo1/subnet1/objnet1/OUT")
#nodeTrans receives the points and its data resulted of the objnet/extractgeo SOP
mat = nodeTrans.worldTransform()
#mat receives a matrix with the transform data of the points in the world, translate and rotate information
matAttrib = geo.findGlobalAttrib("mat")
#matAttrib receives the 'detail attribute' data from mat. In the first time in the loop it has zero data, so \/
if not matAttrib:
matAttrib = geo.addAttrib(hou.attribType.Global, "mat", mat.asTuple())
#Turns the matrix data of mat in 'detail attribute' as Tuple
#if matAttrib already has something in it, put these values into 'detail attribute'