Hi there. I felt like I already know my toys around but it looks that I'm still newbie on some points.
So here goes problem: Lets say that we have list to copy: a = [1,2,3] b = a[:] a[0] = 5 a > [5,2,3] b >[1,2,3] So far so good But... let's say that "a" also contains lists: a = [1,2,[5,6,7]] b = a[:] a[0] = 55 a > [55,2,[5,6,7]] b > [1,2,[5,6,7]] Looks OK but... a[2][0] = 99 a > [55,2,[99,6,7]] b > [1,2,[99,6,7]] So - it looks that in list "b" there copy of all objects from list "a" including not copy of list [5,6,7] but reference to it. Is there simple way to copy a into b (like a[:]) with all copies of all objects going as deep as possible? Or it can be done only manually? Regards Yatsek -- http://mail.python.org/mailman/listinfo/python-list