On Mon, Jan 27, 2020 at 5:01 PM Nils Bruin <nbr...@sfu.ca> wrote:

> For 2) there are different possibilities.
>  a) Something like sorted(D.iteritems()) works, but it means the doctest
> now displays a list of tuples rather than something that looks like a dict:
> not a problem for "TESTS:" but less than desirable for "EXAMPLES:".
>  b) It looks like with `from pprint import pprint` we could just do
> `pprint(D)` to get a pretty-printed dict.
>  c) we have a pretty_print(...) which could grow a `sort=True` attribute
> for dicts. However, its default currently is to output "latex" which is
> grossly inappropriate for doctests. So if we go with that, we should
> probably ensure that the "display manager" in force for doctests has text
> preference set to "plain" (and perhaps also ensure that this is the case
> when using the command line shell, where "latex" output is also far from
> pretty.
>
> Generally I'm not so in favour of making special arrangements for the
> benefit of doctests (just write them so that they don't rely on arbitrary
> peculiarities, and use "#random" if you have to display such things in the
> `EXAMPLES` area), but in this case we're inheriting a problem from a change
> in IPython, so a more systematic approach seems appropriate. Since this
> affects a lot of developers, a sage-devel discussion seem appropriate. Go
> ahead!
>

What about having another special doctest comment like "# sort-keys" that
makes the doctest framework sort the keys before printing?  This could be
then implemented in one of the above ways in the doctest code.
David

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