Issue #26574: Optimize bytes.replace(b'', b'.') and
bytearray.replace(b'', b'.'): up to 80% faster. Patch written by Josh Snider.

* hashtable.h: key has now a variable size
* _tracemalloc uses (pointer: void*, domain: unsigned int) as key for traces

uuid.uuid4() always uses os.urandom() after 756d040aa8e8.

uuid.uuid4() always uses os.urandom() after 756d040aa8e8.

Patch by jgauthier.

Patch by jgauthier.

Patch by Andrew Szeto.

Patch by Andrew Szeto.

Without the patch, line 1010 of Lib/datetime.py wasn't covered
by the test suite.

Patch by Colin Williams.

Without the patch, line 1010 of Lib/datetime.py wasn't covered
by the test suite.

Patch by Colin Williams.

doesn't have privileges.

Issue #26567: normalize newlines in test_tracemalloc.

Initial patch by Peter Inglesby.

Initial patch by Peter Inglesby.

Issue #26567.

io.FileIO has a safe implementation of destructor, but not socket nor scandir.

Issue #26568: Fix implementation of showwarning() and formatwarning() for
test_logging.

Issue #26567:

* Add a new function PyErr_ResourceWarning() function to pass the destroyed
  object
* Add a source attribute to warnings.WarningMessage
* Add warnings._showwarnmsg() which uses tracemalloc to get the traceback where
  source object was allocated.

Issue #26568: add new  _showwarnmsg() and _formatwarnmsg() functions to the
warnings module.

The C function warn_explicit() now calls warnings._showwarnmsg() with a
warnings.WarningMessage as parameter, instead of calling warnings.showwarning()
with multiple parameters.

_showwarnmsg() calls warnings.showwarning() if warnings.showwarning() was
replaced. Same for _formatwarnmsg(): call warnings.formatwarning() if it was
replaced.

#26250: document the sqlite3.Cursor.connection attribute.  Initial patches by Aviv Palivoda and Varpu Rantala.

configure script related to compiler flags.

Thanks to Daniel Shaulov for the bug report and patch.

Patch by SilentGhost.