- Issue #22977: Fixed formatting Windows error messages on Wine.
Patch by Martin Panter.
+- Issue #23466: %c, %o, %x, and %X in bytes formatting now raise TypeError on
+ non-integer input.
+
Library
-------
only calls fstat() once. Before fstat() was called twice, which was not
necessary.
+- Issue #23704: collections.deque() objects now support __add__, __mul__, and
+ __imul__().
+
+- Issue #23171: csv.Writer.writerow() now supports arbitrary iterables.
+
+- Issue #23745: The new email header parser now handles duplicate MIME
+ parameter names without error, similar to how get_param behaves.
+
+- Issue #22117: Fix os.utime(), it now rounds the timestamp towards minus
+ infinity (-inf) instead of rounding towards zero.
+
Build
-----
Tests
-----
+- Issue #23799: Added test.support.start_threads() for running and
+ cleaning up multiple threads.
+
+- Issue #22390: test.regrtest now emits a warning if temporary files or
+ directories are left after running a test.
+
Tools/Demos
-----------
Core and Builtins
-----------------
-- Issue #23466: %c, %o, %x, and %X in bytes formatting now raise TypeError on
- non-integer input.
-
- Issue #23573: Increased performance of string search operations (str.find,
str.index, str.count, the in operator, str.split, str.partition) with
arguments of different kinds (UCS1, UCS2, UCS4).
Library
-------
-- Issue #23171: csv.Writer.writerow() now supports arbitrary iterables.
-
-- Issue #23745: The new email header parser now handles duplicate MIME
- parameter names without error, similar to how get_param behaves.
-
-- Issue #22117: Fix os.utime(), it now rounds the timestamp towards minus
- infinity (-inf) instead of rounding towards zero.
-
- Issue #14260: The groupindex attribute of regular expression pattern object
now is non-modifiable mapping.
- Issue #23704: collections.deque() objects now support methods for index(),
insert(), and copy(). This allows deques to be registered as a
MutableSequence and it improves their substitutablity for lists.
- Deques now also support __add__, __mul__, and __imul__().
- Issue #23715: :func:`signal.sigwaitinfo` and :func:`signal.sigtimedwait` are
now retried when interrupted by a signal not in the *sigset* parameter, if
Tests
-----
-- Issue #23799: Added test.support.start_threads() for running and
- cleaning up multiple threads.
-
-- Issue #22390: test.regrtest now emits a warning if temporary files or
- directories are left after running a test.
-
- Issue #23583: Added tests for standard IO streams in IDLE.
- Issue #22289: Prevent test_urllib2net failures due to ftp connection timeout.