make sure fdopen always closes the fd in error cases (closes #21191)
Issue #20644: Keep build-installer.py in sync across active versions.
Issue #21187: Fix OS X installer fail-to-build with Xcode 5.1.
add matrix multiplication operator support to 2to3
teach 2to3 about 'yield from'
Issue #21172: isinstance check relaxed from dict to collections.Mapping.
Issue #21170: Removed invalid parameter names from unittest doc.
Patch by Kushal Das.
Remove references to the obsolete Mac Carbon modules in the GUI
section of the FAQ.
in scan_once, prevent the reading of arbitrary memory when passed a negative index

Bug reported by Guido Vranken.
Issue #12546: Allow \x00 as a fill character for builtin type __format__ methods.
Issue #20624: Merge exception docs tweak from 3.4 branch.
disallow a negative idx parameter
do not generate pipe names in the temporary dir
Closes #20956: 2.7 tokenize does not produce named tuples. Patch by Sam Kimbrel.
temporary change to get better debugging from windows bots
Backed out changeset 81abb121dc65
when an exception is raised in fdopen, never close the fd (changing on my mind on #21191)
add missing NULL check
Some cleanup of the subprocess docs in 2.7.  Adds a reference to the
subprocess32 project in PyPI for posix users.
whitespace chaps my hide