File /usr/share/python2.5/site-packages/pida/model/views.py, line 129, in cb_clicked self.current_callback(item.value) File /usr/share/python2.5/site-packages/pida/model/model.py, line 480, in set_current obs.set_model(model) File /usr/share/python2.5/site-packages/pida/model/model.py, line 360, in set_model self.__model_notify__(model, attr, getattr(model, attr)) File /usr/share/python2.5/site-packages/pida/core/project.py, line 294, in fget return self.__model_interpolate__(self.testing__command_base) File /usr/share/python2.5/site-packages/pida/model/model.py, line 329, in __model_interpolate__ return t.substitute(self.__model_get_interpolation_attrs__()) File /usr/share/python2.5/string.py, line 170, in substituteTypeError: expected string or buffer