Creating a list with holes

[Dan Stromberg]

On Fri, Jan 3, 2014 at 7:37 AM, Chris Angelico <rosuav at gmail.com> wrote:
> Depending on what exactly you need, it's probably worth just using a
> dict. In what ways do you need it to function as a list? You can
> always iterate over sorted(some_dict.keys()) if you need to run
> through them in order.

FWIW, sorting inside a loop is rarely a good idea, unless your lists
are pretty small.

For that, there are many tree datastructures available.