[Python-Dev] Request for CPython 3.5.3 release (original) (raw)

Larry Hastings larry at hastings.org
Tue Jun 28 17:42:33 EDT 2016

On 06/28/2016 02:05 PM, Yury Selivanov wrote:

Long story short, I've discovered that asyncio is broken in 3.5.2. Specifically, there is a callbacks race in loop.sockconnect which can make subsequent loop.socksendall calls to hang forever. This thing is very tricky and hard to detect and debug; I had to spend a few hours investigating what's going on with a failing unittest in uvloop (asyncio-compatible event loop). I can only imagine how hard it would be to understand what's going on in a larger codebase.

For those who is interested, here's a PR for asyncio repo: https://github.com/python/asyncio/pull/366 It explains the bug in detail and there has a proposed patch to fix the problem. Larry and the release team: would it be possible to make an "emergency" 3.5.3 release?

I've looped in the rest of the 3.5 release team.

By the way, I don't know why you Cc'd Nick and Brett. While they're fine fellows, they aren't on the release team, and they aren't involved in these sorts of decisions.

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