vec.normalized() mat.inverted() mat.transposed() made vec/float possible normalize/invert/transpose now return None because they modify the data in place. use the ...(ed) versions to return a modified copy. Fixed Memory leaks from not decreffing PyFloat_AS_DOUBLE from these python functions... (found when testing above functions) ob.rbMass ob.rbRadius matrix.determinant() quat*float vec*float matrix.transpose() EXPP_setModuleConstant Checked all instances of PyFloat_AS_DOUBLE so I dont think there are any mroe leaks there.