Although this patch contains API changes and is rather weighty for an
RC phase, the mailbox module was essentially unusable without the patch
since it would produce UnicodeErrors when handling non-ascii input
at arbitrary and somewhat mysterious places, and any non-trivial amount
of email processing will encounter messages with non-ascii bytes.
The release manager approved the patch application.

The changes allow binary input, and reject non-ASCII string input early
with a useful message instead of failing mysteriously later.  Binary
is used internally for reading and writing the mailbox files.  StringIO
and Text file input are deprecated.

Initial patch by Victor Stinner, validated and expanded by R. David Murray.

Issue #10845: Improve compatibility between multiprocessing on Windows and package, zipfile and directory execution (Reviewed by Antoine Pitrou and approved by Georg Brandl)

Link to OS X build instructions.
Add back issue references for datetime.

Initial patch by Kelsey Hightower.  Approved by Raymond.  A test was
non-trivial to write without calling the private function directly, so
we moved that for later.

commands.  (with release manager approval for 3.2rc2)

the system-provided Python.  Also, properly guard a new Python 3 only
installer build step so that build-installer.py can stay compatible
with the 2.7 version.  (with release manager approval for 3.2rc2)

preventing a confusing hung appearance on OS X with the windows
obscured.  (with release manager approval for 3.2rc2)

menu accelerators for Open Module, Go to Line, and New Indent Width.
The accelerators still work but no longer appear in the menu items.

for the report and the patch.  Reviewed by Georg Brandl.

Patch reviewed by Antoine Pitrou, okayed by Georg Brandl.

Issue #11302: missing type check on _string.formatter_field_name_split and _string.formatter_parser caused crash.

Originial patch by haypo, reviewed by me, okayed by Georg.

Add bullet list and reference to documentation section.

Added a placeholder for str.format_map, as discussed with Raymond. My prose is horrible, some cleanup is required.

Minor internal change to unittest.TestCase.assertCountEqual
Reviewed by R. David Murray

conversion.

(Patch reviewed by David Murray.)

Found by Nadeem Vawda, reviewed by Brett.

Bug discovery and initial patch by Victor Stinner.

keyword-only argument.  The preceding positional argument was deprecated,
so it made no sense to add filter as a positional argument.

(Patch reviewed by Brian Curtin and Anthony Long.)

Parser => BytesParser

(Reviewed by Georg Brandl.)

Also made similar changes to deque.reverse() though this wasn't
strictly necessary (the edge case cannot occur with two pointers
moving to meet in the middle).  Making the change in reverse()
was more a matter of future-proofing.

run with tracing turned on.