Seams to work just fine. Good one.
But the search function for the 1.8.1 Python API reference seams broken.
For example searching for setHPR points to
http://www.panda3d.org/reference/1.8.1/python/classpanda3d_1_1core_1_1NodePath.php#a29c4e6dbeb0225706140f99e10f4f57e
when it should:
http://www.panda3d.org/reference/1.8.1/python/classpanda3d.core.NodePath.php#a29c4e6dbeb0225706140f99e10f4f57e
it gives “_1_1” where it should be just “.”