enhancement request: make py3 read/write py2 pickle format

[Terry Reedy]

On 6/10/2015 7:39 PM, Devin Jeanpierre wrote:
> On Wed, Jun 10, 2015 at 4:25 PM, Terry Reedy <tjreedy at udel.edu> wrote:
>> On 6/10/2015 6:10 PM, Devin Jeanpierre wrote:
>>
>>> The problem is that there are two different ways repr might write out
>>> a dict equal to {'a': 1, 'b': 2}. This can make tests brittle

You commented about *tests*

>> Not if one compares objects rather than string representations of objects.
>> I am strongly of the view that code and tests should be written to directly
>> compare objects as much as possible.

I responded about *tests*

> For serialization formats that always output the same string for the
> same data (like text format protos), there is no practical difference
> between the two, except that if you're comparing text, you can easily
> supply a diff to update one to match the other.

Serialization is a different issue.

-- 
Terry Jan Reedy