[Python-Dev] "Missing" 2.5 feature

[Tim Peters]

Back in:

    http://mail.python.org/pipermail/python-dev/2005-March/051856.html

I made a pitch for adding:

    sys._current_frames()

to 2.5, which would return a dict mapping each thread's id to that
thread's current (Python) frame.  As noted there, an extension module
exists along these lines that's used at least by the popular Zope
DeadlockDebugger product, but it's not possible to do it correctly in
an extension.  The latter is why it needs to be in the core (so long
as it's in an extension, it risks segfaulting, because the core's
internal `head_mutex` lock isn't exposed).

I forgot about this but was recently reminded.  How much opposition
would there be to sneaking this into 2.5b2?  It would consist of
adding a relatively simple new function, docs, and tests; since it
wouldn't _change_ any existing code, it would have a hard time
breaking anything that currently works.