remove scories of round half up code and debug code.

datetime.datetime now round microseconds to nearest with ties going to nearest
even integer (ROUND_HALF_EVEN), as round(float), instead of rounding towards
-Infinity (ROUND_FLOOR).

pytime API: replace _PyTime_ROUND_HALF_UP with _PyTime_ROUND_HALF_EVEN. Fix
also _PyTime_Divide() for negative numbers.

_PyTime_AsTimeval_impl() now reuses _PyTime_Divide() instead of reimplementing
rounding modes.

"""Issue #23517: datetime.timedelta constructor now rounds microseconds to
nearest with ties going away from zero (ROUND_HALF_UP), as Python 2 and Python
older than 3.3, instead of rounding to nearest with ties going to nearest even
integer (ROUND_HALF_EVEN)."""

datetime.timedelta uses rounding mode ROUND_HALF_EVEN again.

Patch by Elvis Pranskevichus.

the path of the directory for temporary files contains symlinks.

the path of the directory for temporary files contains symlinks.

the path of the directory for temporary files contains symlinks.

Patch by Shaun Walbridge

for directories (including empty directories) in ZIP file.
Added test for comparing shutil.make_archive() with the "zip" command.

for directories (including empty directories) in ZIP file.
Added test for comparing shutil.make_archive() with the "zip" command.

for directories (including empty directories) in ZIP file.
Added test for comparing shutil.make_archive() with the "zip" command.

expat parser.

expat parser.

expat parser.

Added additional tests for expat parser attributes.
Based on patch by John Leitch.

Added additional tests for expat parser attributes.
Based on patch by John Leitch.

Added additional tests for expat parser attributes.
Based on patch by John Leitch.

Windows.  The test now makes sense on non-Windows.  Added similar test for
zip format.

Windows.  The test now makes sense on non-Windows.  Added similar test for
zip format.

Windows.  The test now makes sense on non-Windows.  Added similar test for
zip format.

details in issue25018.

details in issue25018.

details in issue25018.

there (as when opening Idle from interactive Python on Windows).