Merged in NEWS changes from the r22b2 branch.

This commit is contained in:
Barry Warsaw 2001-11-16 16:17:27 +00:00
parent 666ca80b63
commit 012852ba7f

View File

@ -39,7 +39,7 @@ Core and builtins
- Assignment to __debug__ raises SyntaxError at compile-time. This
was promised when 2.1c1 was released as "What's New in Python 2.1c1"
(below) says.
(see below) says.
- Clarified the error messages for unsupported operands to an operator
(like 1 + '').
@ -78,8 +78,12 @@ Library
- Symbolic group names in regular expressions must be unique. For
example, the regexp r'(?P<abc>)(?P<abc>)' is not allowed, because a
single name can't mean both "group 1" and "group 2" simultaneously.
Python 2.2 detects this error at regexp compilation time; previously,
the error went undetected, and results were unpredictable.
Python 2.2 detects this error at regexp compilation time;
previously, the error went undetected, and results were
unpredictable. Also in sre, the pattern.split(), pattern.sub(), and
pattern.subn() methods have been rewritten in C. Also, an
experimental function/method finditer() has been added, which works
like findall() but returns an iterator.
- Tix exposes more commands through the classes DirSelectBox,
DirSelectDialog, ListNoteBook, Meter, CheckList, and the
@ -95,16 +99,53 @@ Library
RISCOS, where it is '/'. There is no need to use this variable
unless you have a masochistic desire to port your code to RISCOS.
- mimetypes.py has optional support for non-standard, but commonly
found types. guess_type() and guess_extension() now accept an
optional `strict' flag, defaulting to true, which controls whether
recognize non-standard types or not. A few non-standard types we
know about have been added. Also, when run as a script, there are
new -l and -e options.
- statcache is now deprecated.
- email.Utils.formatdate() now produces the preferred RFC 2822 style
dates with numeric timezones (it used to produce obsolete dates
hard coded to "GMT" timezone). An optional `localtime' flag is
added to produce dates in the local timezone, with daylight savings
time properly taken into account.
- In pickle and cPickle, instead of masking errors in load() by
transforming them into SystemError, we let the original exception
propagate out. Also, implement support for __safe_for_unpickling__
in pickle, as it already was supported in cPickle.
Tools/Demos
Build
- The dbm module is built using libdb1 if available. The bsddb module
is built with libdb3 if available.
- Misc/Makefile.pre.in has been removed by BDFL pronouncement.
C API
- New function PySequence_Fast_GET_SIZE() returns the size of a non-
NULL result from PySequence_Fast(), more quickly than calling
PySequence_Size().
- New argument unpacking function PyArg_UnpackTuple() added.
- New functions PyObject_CallFunctionObjArgs() and
PyObject_CallMethodObjArgs() have been added to make it more
convenient and efficient to call functions and methods from C.
- PyArg_ParseTupleAndKeywords() no longer masks errors, so it's
possible that this will propagate errors it didn't before.
- New function PyObject_CheckReadBuffer(), which returns true if its
argument supports the single-segment readable buffer interface.
New platforms
- We've finally confirmed that this release builds on HP-UX 11.00,
@ -122,6 +163,19 @@ Tests
Windows
Mac
- PythonScript has been moved to unsupported and is slated to be
removed completely in the next release.
- It should now be possible to build applets that work on both OS9 and
OSX.
- The core is now linked with CoreServices not Carbon; as a side
result, default 8bit encoding on OSX is now ASCII.
- Python should now build on OSX 10.1.1
What's New in Python 2.2b1?
Release date: 19-Oct-2001