[Python-Dev] very slow compare of recursive objects

[Tim Peters]

[Tim]
> That's an example of a tuple *containing* a recursive
> structure; there's still no way, starting at t, to get back to t.

[Barry]
> Except, of course, at the C level.

I'm unclear on your meaning.  In the specific example, you couldn't get from
t to t period.

> Do we care about that?

It may depend on what you really meant <wink>.  If you're talking about
creating recursive tuples via mutation in C, where tuples are the only
container type involved, then 2.2.2 and 2.1.3 are broken now (they may blow
the stack while comparing such beasts).