Python List Slicing with None as argument

Question

Via trial and error I found out that

my_list = range(10)
my_list[:None] == my_list[:]

I use this for django query sets so I can define a si

Answer 1

Your way is fine, but I would prefer :

some_queryset[:length] if length else some_queryset

or

some_queryset[:length] if length else some_queryset[:]

which are readable with less knowledge of how slicing treats these special cases.