Python Lists Copying Is It Deep Copy Or Shallow Copy And How Is It Done?

How is Deep copy being done in python for lists? I am a little confused for copying of lists. Is it using shallow copy or deep copy? Also, what is the syntax for sublists? is it

Solution 1:

The new list is a copy of references. g[0] and a[0] both reference the same object. Thus this is a shallow copy. You can see the copy module's deepcopy method for recursively copying containers, but this isn't a common operation in my experience.

Stylistically, I prefer the more explicit g = list(a) to create a copy of a list, but creating a full slice has the same effect.

Solution 2:

From Python Doc you have to use copy.deepcopy(x)