>>> T=range(64) >>> T[6],T[22] = T[22],T[6] Use list and tuple to convert as appropriate. Emile van Sebille emile at fenx.com ------------------- ----- Original Message ----- From: Rob W. W. Hooft <rob at hooft.net> <snip> > >>> T=tuple(range(64)) > >>> T=T[:6]+T[21:22]+T[7:21]+T[6:7]+T[22:] > >>> T >