Thanks for the answer... I have contacted the author few weeks ago, but I have not heard anything from him. This bug report does not sound good... basically, it means that I should add those functions myself. Are there any good tutorials for adding functions to PDB? Furthermore, I have found that pdb.gimp_scale is buggy, sometimes it just gives an error: >>> pdb.gimp_scale(lay, 0, 1, 1000, 50, 450) Traceback (most recent call last): File "/usr/lib/gimp/1.2/plug-ins/gtkcons.py", line 287, in run r = eval(cmd, self.namespace, self.namespace) File "<string>", line 0, in ? RuntimeError: execution error and there are _no_ functions to convert a path into selection available from pdb. Tomek