Updated Mathutils.Vector/Euler/Quaternion/Matrix so these are types rather then module methods, each type now has a tp_new function, matching python builtins float/int/str. Also cleaned up float conversion and arg passing. Changed buttons_objects.py... if ob in groups.objects: # no longer works if ob.name in groups.objects: # is the new syntax ...its more dict like and a lot faster (avoids python iterating over each item and comparing each, use a single rna lookup instead).