try this a=[1, 2, 3] b=a[:] "Daniel Mark" <danielmarkhot at gmail.com> ??? news:1158619411.713865.287810 at m73g2000cwd.googlegroups.com ???... > Hello all: > > I have a list AAA = [1, 2, 3] and would like to subtract one from list > AAA > so AAA' = [0, 1, 2] > > What should I do? > > > Thank you > -Daniel >