sporadic crashes in multi-thread programs when several long deallocator
chains ran concurrently and involved subclasses of built-in container
types.
Because of this change, a couple extension modules compiled for 3.2.4
(those which use the trashcan mechanism, despite it being undocumented)
will not be loadable by 3.2.3 and earlier. However, extension modules
compiled for 3.2.3 and earlier will be loadable by 3.2.4.
PyImport_ImportModuleLevel() with a 'level' of 0 instead of -1 as the
latter is no longer a valid value.
Also added a versionchanged note for PyImport_ImportModuleLevel() just
in case people don't make the connection between changes to
__import__() and this C function.
Fix also its value on Windows and Linux according to its documentation:
"adjustable" indicates if the clock *can be* adjusted, not if it is or was
adjusted.
In most cases, it is not possible to indicate if a clock is or was adjusted.
* Formatting string, int, float and complex use the _PyUnicodeWriter API. It
avoids a temporary buffer in most cases.
* Add _PyUnicodeWriter_WriteStr() to restore the PyAccu optimization: just
keep a reference to the string if the output is only composed of one string
* Disable overallocation when formatting the last argument of str%args and
str.format(args)
* Overallocation allocates at least 100 characters: add min_length attribute
to the _PyUnicodeWriter structure
* Add new private functions: _PyUnicode_FastCopyCharacters(),
_PyUnicode_FastFill() and _PyUnicode_FromASCII()
The speed up is around 20% in average.
Removed futimens as it is now redundant.
Changed shutil.copystat to use st_atime_ns and st_mtime_ns from os.stat
and ns= parameter to utime--it once again preserves exact metadata on Linux!
* Rename time.steady() to time.monotonic()
* On Windows, time.monotonic() uses GetTickCount/GetTickCount64() instead of
QueryPerformanceCounter()
* time.monotonic() uses CLOCK_HIGHRES if available
* Add time.get_clock_info(), time.perf_counter() and time.process_time()
functions
* Remove _PyBytes_FormatLong(): inline it into formatlong()
* the input type is always a long, so remove the code for bool
* don't duplicate the string if the length does not change
* Use PyUnicode_DATA() instead of _PyUnicode_AsString()
Georg Brandl
Antoine Pitrou
Brett Cannon
Benjamin Peterson
Jesus Cea
Stefan Krah
Martin v. Löwis
David Malcolm
Nick Coghlan
Victor Stinner
Barry Warsaw
Eli Bendersky
Richard Oudkerk
Larry Hastings
Mark Dickinson
Brian Curtin