# coding: latin-1 d = {4:4,5:5,6:6} import copy d2 = copy.copy(l) print d # affiche {4: 4, 5: 5, 6: 6} print d2 # affiche {4: 4, 5: 5, 6: 6} d2 [5] = "modif" print d # affiche {4: 4, 5: 5, 6: 6} print d2 # affiche {4: 4, 5: 'modif', 6: 6}