"Terry Reedy" wrote: > Congratulations on actually trying some things out. Here's some more! > > >>> import copy > >>> a='abc' > >>> id(a) > 7957152 > >>> id(copy.copy(a)) > 7957152 > >>> id(copy.deepcopy(a)) > 7957152 How about this: >>> s = 'abc' >>> s2 = s[0]+s[1:] >>> id(s) 10464856 >>> id(s2) 10481520