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

Nathaniel Smith njs at pobox.com
Thu May 31 05:34:28 EDT 2018

On Wed, May 30, 2018, 14:21 Victor Stinner <vstinner at redhat.com> wrote:

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.

MemoryBIO is definitely super useful for async libraries – trio uses it, asyncio uses it, twisted uses it (via pyopenssl). But I don't know of anyone who currently needs it but hasn't already found a way to get it.

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

for pyopenssl.

No, their APIs are totally different, for better or worse.

-n

-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-dev/attachments/20180531/8c68cb48/attachment.html>

More information about the Python-Dev mailing list