Cleanup also the code to follow the Python coding style (PEP 7).

socket.gethostname() now decodes the hostname from the locale encoding, instead
of using the UTF-8 encoding in strict mode.

Issue #13772: Restored directory detection of targets in `os.symlink` on Windows, which was temporarily removed in Python 3.2.3 due to an incomplete implementation. The implementation now works even if the symlink is created in a location other than the current directory.

when applicable.

initial patch by Trent Nelson.

is long, not int.

- Issue #17782: Fix undefined behaviour on platforms where ``struct timespec``'s "tv_nsec" member is not a C long.

implementations from my previous commit into the higher level
function.

listdir into two separate coherent functions rather than interleaved
#ifdef's.

A regression was introduced in the commit for issue issue #4591.

I've left a couple of them in: zlib (third-party lib), getaddrinfo.c
(doesn't include Python.h, and probably obsolete), _sre.c (legitimate
use for the re.LOCALE flag).

There already was a workaround for this for framework builds on OSX,
this changeset enables the same workaround for shared libraries.

Closes #1602133

There already was a workaround for this for framework builds on OSX,
this changeset enables the same workaround for shared libraries.

Closes #1602133

when result of PyLong_AsLong() narrowed to int without checks.

file descriptor receive the incorrect type.

with the surrogateescape error handler, instead of UTF-8 in strict mode.

Set st_dev on Windows as unsigned long to match its DWORD type, related to the change to fix #11939.

st_dev/st_rdev should be unsigned long as dwVolumeSerialNumber, which it is set to, is a DWORD. This was fixed in #11939 and the overflow was mentioned in #10657 and seen by me on some machines.

By setting the st_dev attribute, we can then remove some Windows-specific
code and move os.path.samefile/sameopenfile/samestat to Lib/genericpath.py
so all platforms share the same implementation.

Patch by Serhiy Storchaka.