Rasmus Villemoes writes:
First, apologies if this isn't the appropriate list; I trust I'll be nudged in the right direction.
Given the relatively advanced state of patch, I doubt that this is the *wrong* list. However, you would probably benefit from posting to email@example.com to collect use cases. (We don't "vote" on such additions. Rather the senior devs consider whether the use cases seem general enough to justify on-going maintenance costs for new code.)
I would of course also be very interested in getting it into 2.7.x, but I assume that's impossible(?).
That is correct. This is clearly a feature, and 2.7 currently is accepting only security-related patches (broadly construed -- a sufficiently severe bug, such as a crash or infloop, is security- related because it could be used to implement a DoS attack).
Where/how should RFC patches be posted?
To the issue tracker, bugs.python.org. A follow-up here (and if you choose to post to python-list, there) to mention the issue number and URL is a good idea.