On 21/03/2017 16:52, Brett Cannon wrote:
On Tue, 21 Mar 2017 at 04:54 Marius Gedminas <mar...@gedmin.as> wrote:
.....
Python 3.6 changed the dict implementation so the ordering is always stable
(and matches insertion order).
Do realize that is an implementation detail and not guaranteed by the
language specification, so it won't necessarily hold in the future or for
other interpreters.
-Brett
one of the main issues in the reportlab pdf variability are the dict objects
which come out as
<<
/Key1 value
.....
/Key n
>>
I think we have these coming out in sorted order without reliance on the
underlying dicts. Up to now we used pixel equality ie the appearance, but as I
understand it, reproducibility means byte equality which is harder. A bit of
work has been done making the variation between Python 2.7 & 3.6 renderings go
away. This reproducibility effort has revealed several bugs which is in itself
useful.
--
Robin Becker
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