[issue22995] Restrict default pickleability

[Josh Rosenberg]

Josh Rosenberg added the comment:

Minor note: Python classes with __slots__ pickle and unpickle just fine under protocol 2 and higher. Only protocols 0 and 1 have this problem, and they are no longer used by default on Py3, and not necessary to communicate with Py2, where protocol 2 is supported and generally more efficient.

I understand that you're not suggesting any changes to address issue #1, just wanted to mention this.

----------
nosy: +josh.r

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22995>
_______________________________________