When we define a new property we provide the type of its values: vprop_vint = g.new_vertex_property("vector<int>") Is there some way to obtain this type from the property object, for example when properties are included in a graph read from a .gt.gz file? (I hope this is not already somewhere in the documentation…) Thanks in advance -- ------------------------------------------------------- Yannis Haralambous Professor Institut Mines-Télécom, Télécom Bretagne Computer Science Department UMR CNRS 6285 Lab-STICC Technopôle Brest Iroise CS 83818, 29238 Brest Cedex 3, France Email: yannis.haralambous@telecom-bretagne.eu Internet: http://perso.telecom-bretagne.eu/yannisharalambous/ ICBM address: 48°21'31.57"N 4°34'16.76"W Twitter: y_haralambous ------------------------------------------------------- ...the ball I threw while playing in the park has not yet reached the ground (Dylan Thomas) Es gab eine Zeit, wo ich nur ungern über Schubert sprechen, nur Nächtens den Bäumen und Sternen von ihm vorerzählen mögen. (Robert Schumann)