popen2.popen2/3/4 functions can be a sequence. All texts are a variation on the
following:

On \UNIX, \var{cmd} may be a sequence, in which case arguments will be passed
directly to the program without shell intervention (as with
\function{os.spawnv()}). If \var{cmd} is a string it will be passed to the shell
(as with \function{os.system()}).

[ 1042238 ] Lib/compiler chokes on certain genexps

used to replace rfc822.formatdate for protocols like HTTP (where 'GMT' must
be the timezone string).

Coghlan, for determining whether PyEval_InitThreads() has been called.
Also purged the undocumented+unused _PyThread_Started int.

thread's id can't get duplicated, because (of course!) the current thread
is still running.  The code should work either way, but reverting the
gratuitous change should make backporting easier, and gets the bad
reasoning out of 2.35's new comments.

This appears to finish repairs for SF bug 1041645.

This is a critical bugfix.

release-build failures noted in bug 1041645.

This is a critical bugfix.  I'm not going to backport it, though (no time).

that must be done under protection of the GIL, for reasons explained in
new comments.

email's version number to 3.0b1.

capturing_preamble but we found a StartBoundaryNotFoundDefect, we need to
consume all lines from the current position to the EOF, which we'll set as the
epilogue of the current message.  If we're not at EOF when we return from
here, the outer message's capturing_preamble assertion will fail.

can fail, check its return value, and die if it does fail.

_PyGILState_Init():  Assert that the thread doesn't already have an
association for autoTLSkey.  If it does, PyThread_set_key_value() will
ignore the attempt to (re)set the association, which the code clearly
doesn't want.

code.

PyThread_set_key_value():  It's clear that this code assumes the passed-in
value isn't NULL, so document that it must not be, and assert that it
isn't.  It remains unclear whether existing callers want the odd semantics
actually implemented by this function.

calling .lower() on it.  This fixes the problem described in SF patch # 866982
where in the tr_TR.ISO-8859-9 locale, 'I'.lower() isn't 'i'.  unicodes are
locale insensitive.

arguments passed through tuples.

George Yoshida!

Simplify internal calls and logic for _fix() and _fixexponents().
(Contributed by Facundo Batista.)

(Contributed by Gerrit Holl.  Reviewed by Jeff Epler.)

The shutils.rmtree() implementation uses an excessive amount of memory when
deleting large directory hierarchies. Before actually deleting any files, it
builds up a list of (function, filename) tuples for all the files that it is
going to remove.

[ 1030629 ] PyOS_InputHook broken

with a couple of utterly inconsequential changes by me.

(Contributed by Nick Coghlan.)