enhancement request: make py3 read/write py2 pickle format

[Serhiy Storchaka]

On 09.06.15 21:08, Neal Becker wrote:
> One of the most annoying problems with py2/3 interoperability is that the
> pickle formats are not compatible.  There must be many who, like myself,
> often use pickle format for data storage.
>
> It certainly would be a big help if py3 could read/write py2 pickle format.
> You know, backward compatibility?

Pickle format is mostly compatible. What is your issue?