Source: 📖 Effective Python item 11

Slicing a copy of a list

You can use slicing to create a full copy of a list, simply by including all the list items in the slice by using [:] as your slicing index.

my_list = [1, 2, 3, 4]
slice_copy = my_list[:]	# includes all list indexes

print(my_list)
print(slice_copy)

>>>
[1, 2, 3, 4]
[1, 2, 3, 4]

See also:

• Slicing from and to list boundaries
• List slicing syntax