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Re: Creating a list with holes

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  Re: Creating a list with holes Chris Angelico <rosuav@gmail.com> - 2014-01-04 14:00 +1100

#63101 — Re: Creating a list with holes

On Sat, Jan 4, 2014 at 1:58 PM, Dan Stromberg <drsalists@gmail.com> wrote:
> On Fri, Jan 3, 2014 at 7:37 AM, Chris Angelico <rosuav@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.

What do you mean by "sorting inside a loop"? I was thinking of this:

for key in sorted(some_dict.keys()):
    # blah blah

which will sort once and then iterate over it.

ChrisA

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