def _onDescriptionUpdated(self, collection, descriptionId):
        desc = collection.getDescription(descriptionId)
        meshId = desc['uuid']
        if self.meshes not in meshId:
            polyData = geometryencoder.decodePolyData(desc['data'])
            self.meshes[meshId] = polyData
            #print 'decoded polydata with %d points' % polyData.GetNumberOfPoints()
dataset/ETHPy150Open RobotLocomotion/director/src/python/director/meshmanager.py/MeshManager._onDescriptionUpdated/swapped operands of `not in`