Detect also earlier PyMarshal_Read*() errors in zipimport.

the caller can replace the directory with a different file kind.

The bottom-up way, os.walk(topdown=False), still uses entry.is_symlink(), and
so can be faster than Python 3.4.

Retry open()/fopen() if it fails with EINTR and the Python signal handler
doesn't raise an exception.

Setting attributes key, value and coded_value directly now is deprecated.
update() and setdefault() now transform and check keys.  Comparing for
equality now takes into account attributes key, value and coded_value.
copy() now returns a Morsel, not a dict.  repr() now contains all attributes.
Optimized checking keys and quoting values.  Added new tests.
Original patch by Demian Brecht.

* If fopen() fails, OSError is raised with the original filename object.
* The GIL is now released while calling fopen()

* _Py_open() now raises exceptions on error. If open() fails, it raises an
  OSError with the filename.
* _Py_open() now releases the GIL while calling open()
* Add _Py_open_noraise() when _Py_open() cannot be used because the GIL is not
  held

Disable completly pyatomic.h on C++, because <stdatomic.h> is not compatible with C++.

<pyatomic.h> is only needed by the optimized PyThreadState_GET() macro in
pystate.h. Instead, declare PyThreadState_GET() as an alias to
PyThreadState_Get(), as done for limited API.

This allows manual selection of a specific unit such as usecs rather than the
use of a heuristic. This is intended to aid machine processing of timeit
output.

Patch by Serhiy Storchaka.

_codecs_cn, _codecs_hk, _codecs_iso2022, _codecs_jp, _codecs_kr and _codecs_tw
modules.

pyexpat.c doesn't need to redeclare PyMODINIT_FUNC, it's already declared in
Include/pyport.h.

Sorry, it was a mistake, the patch is still under review: issue #23646.

Patch by Thomas Kluyver.

Patch by Thomas Kluyver.

test_io. Allocate the large data before scheduling an alarm in 1 second.

On very slow computer, the alarm rings sometimes during the memory allocation.

of test_io. Allocate the large data before scheduling an alarm in 1 second.

On very slow computer, the alarm rings sometimes during the memory allocation.

PyEval_CallObjectWithKeywords()

Sorry Serhiy, I missed your explanation because the review email was moved to
my Spam folder :-(

Merge 3.4

The current documentation only mentions heap[0] as the smallest element in the
beginning, and not in any of the methods' docs. There's no method to access the
minimal element without popping it, and the documentation of nsmallest is
confusing because it may suggest that min() is the way to go for n==1.

The current documentation only mentions heap[0] as the smallest element in the
beginning, and not in any of the methods' docs. There's no method to access the
minimal element without popping it, and the documentation of nsmallest is
confusing because it may suggest that min() is the way to go for n==1.

Patch by Håkan Lövdahl.

Patch by Håkan Lövdahl.