[Python-Dev] Withdraw PEP 546? Backport ssl.MemoryBIO and ssl.SSLObject to Python 2.7

[Victor Stinner]

2018-05-30 18:02 GMT+02:00 Nathaniel Smith <njs at pobox.com>:
> On Wed, May 30, 2018, 07:30 Victor Stinner <vstinner at redhat.com> wrote:
>>
>> Does anyone would benefit of MemoryBIO in Python 2.7? Twisted,
>> asyncio, trio, urllib3, anyone else?
>
> Asyncio and trio are strongly py3-only. Twisted's TLS functionality is built
> around pyopenssl, so the stdlib ssl module doesn't affect them. Urllib3 uses
> the socket-wrapping APIs, not MemoryBIO. So fwiw I don't think any of those
> projects would benefit.

MemoryBIO was the key feature which allowed to implement TLS for the
ProactorEventLoop (IOCP) of asyncio.

I'm not sure that the Python 2.7 ssl module is a drop-in replacement
for pyopenssl.

Victor