I ran the attached program and got the following output:
[1, 2, 3] [3, 6, 9] I don't understand why the modification doesn't work in the case of test() but does work in the case of test1(). Thanks for your help in advance. M. K. Shen ------------------------------------------------------------ def test(alist): alist=[3,6,9] return def test1(alist): alist[0],alist[1],alist[2]=3,6,9 return ss=[1,2,3] test(ss) print(ss) test1(ss) print(ss) -- https://mail.python.org/mailman/listinfo/python-list