Issue #20191: Fixed a crash in resource.prlimit() when pass a sequence that

doesn't own its elements as limits.

diff --cc Misc/NEWS
index b948db8540d52dcd192e52975a00af53bd3153ac,13e9e6d53dab8f94f8da0b0cb30ed48097a9cbf8..5b02f89b52fdeadb9c07aa3d936607842551a290
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -13,116 -13,119 +13,119 @@@ Core and Builtin
  - Issue #29000: Fixed bytes formatting of octals with zero padding in alternate
    form.
  
 -- Issue #28512: Fixed setting the offset attribute of SyntaxError by
 -  PyErr_SyntaxLocationEx() and PyErr_SyntaxLocationObject().
 +- Issue #26919: On Android, operating system data is now always encoded/decoded
 +  to/from UTF-8, instead of the locale encoding to avoid inconsistencies with
 +  os.fsencode() and os.fsdecode() which are already using UTF-8.
  
  - Issue #28991:  functools.lru_cache() was susceptible to an obscure reentrancy
 -  bug caused by a monkey-patched len() function.
 +  bug triggerable by a monkey-patched len() function.
  
 -- Issue #28648: Fixed crash in Py_DecodeLocale() in debug build on Mac OS X
 -  when decode astral characters.  Patch by Xiang Zhang.
 +- Issue #28739: f-string expressions are no longer accepted as docstrings and
 +  by ast.literal_eval() even if they do not include expressions.
  
 -- Issue #19398: Extra slash no longer added to sys.path components in case of
 -  empty compile-time PYTHONPATH components.
 +- Issue #28512: Fixed setting the offset attribute of SyntaxError by
 +  PyErr_SyntaxLocationEx() and PyErr_SyntaxLocationObject().
  
 -- Issue #28426: Fixed potential crash in PyUnicode_AsDecodedObject() in debug
 -  build.
 +- Issue #28918: Fix the cross compilation of xxlimited when Python has been
 +  built with Py_DEBUG defined.
  
 -- Issue #23782: Fixed possible memory leak in _PyTraceback_Add() and exception
 -  loss in PyTraceBack_Here().
 +- Issue #28731: Optimize _PyDict_NewPresized() to create correct size dict.
 +  Improve speed of dict literal with constant keys up to 30%.
  
 -- Issue #28379: Added sanity checks and tests for PyUnicode_CopyCharacters().
 -  Patch by Xiang Zhang.
 +Library
 +-------
  
 -- Issue #28376: The type of long range iterator is now registered as Iterator.
 -  Patch by Oren Milman.
++- Issue #20191: Fixed a crash in resource.prlimit() when pass a sequence that
++  doesn't own its elements as limits.
+ 
 -- Issue #28376: The constructor of range_iterator now checks that step is not 0.
 -  Patch by Oren Milman.
 +- Issue #28779: multiprocessing.set_forkserver_preload() would crash the
 +  forkserver process if a preloaded module instantiated some
 +  multiprocessing objects such as locks.
  
 -- Issue #26906: Resolving special methods of uninitialized type now causes
 -  implicit initialization of the type instead of a fail.
 +- Issue #28847: dbm.dumb now supports reading read-only files and no longer
 +  writes the index file when it is not changed.
  
 -- Issue #18287: PyType_Ready() now checks that tp_name is not NULL.
 -  Original patch by Niklas Koep.
 +- Issue #26937: The chown() method of the tarfile.TarFile class does not fail
 +  now when the grp module cannot be imported, as for example on Android
 +  platforms.
  
 -- Issue #24098: Fixed possible crash when AST is changed in process of
 -  compiling it.
 +Windows
 +-------
  
 -- Issue #28350: String constants with null character no longer interned.
 +- Issue #25778: winreg does not truncate string correctly (Patch by Eryk Sun)
  
 -- Issue #26617: Fix crash when GC runs during weakref callbacks.
 +- Issue #28896: Deprecate WindowsRegistryFinder and disable it by default.
  
 -- Issue #27942: String constants now interned recursively in tuples and frozensets.
 +Tests
 +-----
  
 -- Issue #21578: Fixed misleading error message when ImportError called with
 -  invalid keyword args.
 +- Issue #28683: Fix the tests that bind() a unix socket and raise
 +  PermissionError on Android for a non-root user.
  
 -- Issue #28203: Fix incorrect type in error message from
 -  ``complex(1.0, {2:3})``. Patch by Soumya Sharma.
 +- Issue #26939: Add the support.setswitchinterval() function to fix
 +  test_functools hanging on the Android armv7 qemu emulator.
  
 -- Issue #27955: Fallback on reading /dev/urandom device when the getrandom()
 -  syscall fails with EPERM, for example when blocked by SECCOMP.
 +Build
 +-----
  
 -- Issue #28131: Fix a regression in zipimport's compile_source().  zipimport
 -  should use the same optimization level as the interpreter.
 +- Issue #20211: Do not add the directory for installing C header files and the
 +  directory for installing object code libraries to the cross compilation
 +  search paths. Original patch by Thomas Petazzoni.
  
 -- Issue #25221: Fix corrupted result from PyLong_FromLong(0) when
 -  Python is compiled with NSMALLPOSINTS = 0.
 +- Issue #28849: Do not define sys.implementation._multiarch on Android.
  
 -- Issue #25758: Prevents zipimport from unnecessarily encoding a filename
 -  (patch by Eryk Sun)
  
 -- Issue #28189: dictitems_contains no longer swallows compare errors.
 -  (Patch by Xiang Zhang)
 +What's New in Python 3.6.0 release candidate 2
 +==============================================
  
 -- Issue #27812: Properly clear out a generator's frame's backreference to the
 -  generator to prevent crashes in frame.clear().
 +*Release date: 2016-12-16*
  
 -- Issue #27811: Fix a crash when a coroutine that has not been awaited is
 -  finalized with warnings-as-errors enabled.
 +Core and Builtins
 +-----------------
  
 -- Issue #27587: Fix another issue found by PVS-Studio: Null pointer check
 -  after use of 'def' in _PyState_AddModule().
 -  Initial patch by Christian Heimes.
 +- Issue #28147: Fix a memory leak in split-table dictionaries: setattr()
 +  must not convert combined table into split table. Patch written by INADA
 +  Naoki.
  
 -- Issue #26020: set literal evaluation order did not match documented behaviour.
 +- Issue #28990: Fix asyncio SSL hanging if connection is closed before
 +  handshake is completed. (Patch by HoHo-Ho)
  
 -- Issue #27782: Multi-phase extension module import now correctly allows the
 -  ``m_methods`` field to be used to add module level functions to instances
 -  of non-module types returned from ``Py_create_mod``. Patch by Xiang Zhang.
 +Tools/Demos
 +-----------
  
 -- Issue #27936: The round() function accepted a second None argument
 -  for some types but not for others.  Fixed the inconsistency by
 -  accepting None for all numeric types.
 +- Issue #28770: Fix python-gdb.py for fastcalls.
  
 -- Issue #27487: Warn if a submodule argument to "python -m" or
 -  runpy.run_module() is found in sys.modules after parent packages are
 -  imported, but before the submodule is executed.
 +Windows
 +-------
  
 -- Issue #27558: Fix a SystemError in the implementation of "raise" statement.
 -  In a brand new thread, raise a RuntimeError since there is no active
 -  exception to reraise. Patch written by Xiang Zhang.
 +- Issue #28896: Deprecate WindowsRegistryFinder.
  
 -- Issue #27419: Standard __import__() no longer look up "__import__" in globals
 -  or builtins for importing submodules or "from import".  Fixed handling an
 -  error of non-string package name.
 +Build
 +-----
  
 -- Issue #27083: Respect the PYTHONCASEOK environment variable under Windows.
 +- Issue #28898: Prevent gdb build errors due to HAVE_LONG_LONG redefinition.
  
 -- Issue #27514: Make having too many statically nested blocks a SyntaxError
 -  instead of SystemError.
  
 -- Issue #27473: Fixed possible integer overflow in bytes and bytearray
 -  concatenations.  Patch by Xiang Zhang.
 +What's New in Python 3.6.0 release candidate 1
 +==============================================
  
 -- Issue #27507: Add integer overflow check in bytearray.extend().  Patch by
 -  Xiang Zhang.
 +*Release date: 2016-12-06*
  
 -- Issue #27581: Don't rely on wrapping for overflow check in
 -  PySequence_Tuple().  Patch by Xiang Zhang.
 +Core and Builtins
 +-----------------
  
 -- Issue #27443: __length_hint__() of bytearray iterators no longer return a
 -  negative integer for a resized bytearray.
 +- Issue #23722: Rather than silently producing a class that doesn't support
 +  zero-argument ``super()`` in methods, failing to pass the new
 +  ``__classcell__`` namespace entry up to ``type.__new__`` now results in a
 +  ``DeprecationWarning`` and a class that supports zero-argument ``super()``.
  
 -- Issue #27942: Fix memory leak in codeobject.c
 +- Issue #28797: Modifying the class __dict__ inside the __set_name__ method of
 +  a descriptor that is used inside that class no longer prevents calling the
 +  __set_name__ method of other descriptors.
 +
 +- Issue #28782: Fix a bug in the implementation ``yield from`` when checking
 +  if the next instruction is YIELD_FROM. Regression introduced by WORDCODE
 +  (issue #26647).
  
  Library
  -------

diff --cc Modules/resource.c
Simple merge