hi, assume that I want to create the dict: p={1:11,2:22,3:33,4:44} and that i have: the keys=[1,2,3,4] and the values=[11,22,33,44] Is the simpliest way to do this, is to do : p={} for i in range(len(keys)): p[keys[i]]=values[i] or is there a hidded function which do this? Cédric BRINER