From 97f005d137b59887e64fed801197aae1b3597083 Mon Sep 17 00:00:00 2001 From: Barry Warsaw Date: Wed, 3 Dec 2008 16:46:14 +0000 Subject: Prep for Python 3.1! --- Doc/license.rst | 2 +- Doc/tutorial/interpreter.rst | 18 +- Doc/tutorial/stdlib.rst | 2 +- Doc/tutorial/stdlib2.rst | 2 +- Include/patchlevel.h | 8 +- LICENSE | 2 +- Lib/distutils/__init__.py | 2 +- Lib/idlelib/idlever.py | 2 +- Misc/HISTORY | 1390 ++++++++++++++++++++++++++++++++++++++++++ Misc/NEWS | 1373 +---------------------------------------- README | 51 +- RELNOTES | 24 +- 12 files changed, 1444 insertions(+), 1432 deletions(-) diff --git a/Doc/license.rst b/Doc/license.rst index 892b5ea..dac7100 100644 --- a/Doc/license.rst +++ b/Doc/license.rst @@ -90,7 +90,7 @@ been GPL-compatible; the table below summarizes the various releases. +----------------+--------------+------------+------------+-----------------+ | 2.6 | 2.5 | 2008 | PSF | yes | +----------------+--------------+------------+------------+-----------------+ -| 3.0 | 2.6 | 2007 | PSF | yes | +| 3.0 | 2.6 | 2008 | PSF | yes | +----------------+--------------+------------+------------+-----------------+ .. note:: diff --git a/Doc/tutorial/interpreter.rst b/Doc/tutorial/interpreter.rst index 010bc6b..e93b567 100644 --- a/Doc/tutorial/interpreter.rst +++ b/Doc/tutorial/interpreter.rst @@ -10,11 +10,11 @@ Using the Python Interpreter Invoking the Interpreter ======================== -The Python interpreter is usually installed as :file:`/usr/local/bin/python3.0` +The Python interpreter is usually installed as :file:`/usr/local/bin/python3.1` on those machines where it is available; putting :file:`/usr/local/bin` in your Unix shell's search path makes it possible to start it by typing the command :: - python3.0 + python3.1 to the shell. [#]_ Since the choice of the directory where the interpreter lives is an installation option, other places are possible; check with your local @@ -22,11 +22,11 @@ Python guru or system administrator. (E.g., :file:`/usr/local/python` is a popular alternative location.) On Windows machines, the Python installation is usually placed in -:file:`C:\\Python30`, though you can change this when you're running the +:file:`C:\\Python31`, though you can change this when you're running the installer. To add this directory to your path, you can type the following command into the command prompt in a DOS box:: - set path=%path%;C:\python30 + set path=%path%;C:\python31 Typing an end-of-file character (:kbd:`Control-D` on Unix, :kbd:`Control-Z` on Windows) at the primary prompt causes the interpreter to exit with a zero exit @@ -101,13 +101,13 @@ with the *secondary prompt*, by default three dots (``...``). The interpreter prints a welcome message stating its version number and a copyright notice before printing the first prompt:: - $ python3.0 - Python 3.0a1 (py3k, Sep 12 2007, 12:21:02) + $ python3.1 + Python 3.1a1 (py3k, Sep 12 2007, 12:21:02) [GCC 3.4.6 20060404 (Red Hat 3.4.6-8)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> -.. XXX update for final release of Python 3.0 +.. XXX update for final release of Python 3.1 Continuation lines are needed when entering a multi-line construct. As an example, take a look at this :keyword:`if` statement:: @@ -155,7 +155,7 @@ Executable Python Scripts On BSD'ish Unix systems, Python scripts can be made directly executable, like shell scripts, by putting the line :: - #! /usr/bin/env python3.0 + #! /usr/bin/env python3.1 (assuming that the interpreter is on the user's :envvar:`PATH`) at the beginning of the script and giving the file an executable mode. The ``#!`` must be the @@ -243,7 +243,7 @@ in the script:: .. rubric:: Footnotes -.. [#] On Unix, the 3.0 interpreter is by default not installed with the +.. [#] On Unix, the 3.1 interpreter is by default not installed with the executable named ``python``, so that it does not conflict with a simultaneously installed Python 2.x executable. diff --git a/Doc/tutorial/stdlib.rst b/Doc/tutorial/stdlib.rst index 9bc0890..3b1f1fc 100644 --- a/Doc/tutorial/stdlib.rst +++ b/Doc/tutorial/stdlib.rst @@ -17,7 +17,7 @@ operating system:: >>> os.system('time 0:02') 0 >>> os.getcwd() # Return the current working directory - 'C:\\Python30' + 'C:\\Python31' >>> os.chdir('/server/accesslogs') Be sure to use the ``import os`` style instead of ``from os import *``. This diff --git a/Doc/tutorial/stdlib2.rst b/Doc/tutorial/stdlib2.rst index 84dfb61..a06a20b 100644 --- a/Doc/tutorial/stdlib2.rst +++ b/Doc/tutorial/stdlib2.rst @@ -271,7 +271,7 @@ applications include caching objects that are expensive to create:: Traceback (most recent call last): File "", line 1, in d['primary'] # entry was automatically removed - File "C:/python30/lib/weakref.py", line 46, in __getitem__ + File "C:/python31/lib/weakref.py", line 46, in __getitem__ o = self.data[key]() KeyError: 'primary' diff --git a/Include/patchlevel.h b/Include/patchlevel.h index 66465c3..231ffbc 100644 --- a/Include/patchlevel.h +++ b/Include/patchlevel.h @@ -17,13 +17,13 @@ /* Version parsed out into numeric values */ /*--start constants--*/ #define PY_MAJOR_VERSION 3 -#define PY_MINOR_VERSION 0 +#define PY_MINOR_VERSION 1 #define PY_MICRO_VERSION 0 -#define PY_RELEASE_LEVEL PY_RELEASE_LEVEL_GAMMA -#define PY_RELEASE_SERIAL 3 +#define PY_RELEASE_LEVEL PY_RELEASE_LEVEL_ALPHA +#define PY_RELEASE_SERIAL 0 /* Version as a string */ -#define PY_VERSION "3.0rc3+" +#define PY_VERSION "3.1a0" /*--end constants--*/ /* Subversion Revision number of this file (not of the repository) */ diff --git a/LICENSE b/LICENSE index 0cfe7fd..7a51cb8 100644 --- a/LICENSE +++ b/LICENSE @@ -56,7 +56,7 @@ the various releases. 2.5 2.4 2006 PSF yes 2.5.1 2.5 2007 PSF yes 2.6 2.5 2008 PSF yes - 3.0 2.6 2007 PSF yes + 3.0 2.6 2008 PSF yes Footnotes: diff --git a/Lib/distutils/__init__.py b/Lib/distutils/__init__.py index 2cf9d4d..34fc008 100644 --- a/Lib/distutils/__init__.py +++ b/Lib/distutils/__init__.py @@ -20,5 +20,5 @@ __revision__ = "$Id$" # #--start constants-- -__version__ = "3.0rc3" +__version__ = "3.1a0" #--end constants-- diff --git a/Lib/idlelib/idlever.py b/Lib/idlelib/idlever.py index a18c676..42720f9 100644 --- a/Lib/idlelib/idlever.py +++ b/Lib/idlelib/idlever.py @@ -1 +1 @@ -IDLE_VERSION = "3.0rc3" +IDLE_VERSION = "3.1a0" diff --git a/Misc/HISTORY b/Misc/HISTORY index e5d962e..eb567c4 100644 --- a/Misc/HISTORY +++ b/Misc/HISTORY @@ -10,6 +10,1396 @@ file of the release25-maint branch.) ====================================================================== +What's New in Python 3.0 final +============================== + +*Release date: 03-Dec-2008* + +Core and Builtins +----------------- + +- Issue #3996: On Windows, the PyOS_CheckStack function would cause the + interpreter to abort ("Fatal Python error: Could not reset the stack!") + instead of throwing a MemoryError. + +- Issue #3689: The list reversed iterator now supports __length_hint__ + instead of __len__. Behavior now matches other reversed iterators. + +- Issue #4367: Python would segfault during compiling when the unicodedata + module couldn't be imported and \N escapes were present. + +- Fix build failure of _cursesmodule.c building with -D_FORTIFY_SOURCE=2. + +Library +------- + +- Issue #4387: binascii now refuses to accept str as binary input. + +- Issue #4073: Add 2to3 support to build_scripts, refactor that support + in build_py. + +- IDLE would print a "Unhandled server exception!" message when internal + debugging is enabled. + +- Issue #4455: IDLE failed to display the windows list when two windows have + the same title. + +- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an + exception. + +- Issue #4433: Fixed an access violation when garbage collecting + _ctypes.COMError instances. + +- Issue #4429: Fixed UnicodeDecodeError in ctypes. + +- Issue #4373: Corrected a potential reference leak in the pickle module and + silenced a false positive ref leak in distutils.tests.test_build_ext. + +- Issue #4382: dbm.dumb did not specify the expected file encoding for opened + files. + +- Issue #4383: When IDLE cannot make the connection to its subprocess, it would + fail to properly display the error message. + +Build +----- + +- Issue #4407: Fix source file that caused the compileall step in Windows installer + to fail. + +Docs +---- + +- Issue #4449: Fixed multiprocessing examples + +- Issue #3799: Document that dbm.gnu and dbm.ndbm will accept string arguments + for keys and values which will be converted to bytes before committal. + + +What's New in Python 3.0 release candidate 3? +============================================= + +*Release date: 20-Nov-2008* + + +Core and Builtins +----------------- + +- Issue #4349: sys.path included a non-existent platform directory because of a + faulty Makefile. + +- Issue #3327: Don't overallocate in the modules_by_index list. + +- Issue #1721812: Binary set operations and copy() returned the input type + instead of the appropriate base type. This was incorrect because set + subclasses would be created without their __init__() method being called. + The corrected behavior brings sets into line with lists and dicts. + +- Issue #4296: Fix PyObject_RichCompareBool so that "x in [x]" evaluates to + True, even when x doesn't compare equal to itself. This was a regression + from 2.6. + +- Issue #3705: Command-line arguments were not correctly decoded when the + terminal does not use UTF8. + +Library +------- + +- Issue #4363: The uuid.uuid1() and uuid.uuid4() functions now work even if + the ctypes module is not present. + +- FileIO's mode attribute now always includes ``"b"``. + +- Issue #3799: Fix dbm.dumb to accept strings as well as bytes for keys. String + keys are now written out in UTF-8. + +- Issue #4338: Fix distutils upload command. + +- Issue #4354: Fix distutils register command. + +- Issue #4116: Resolve member name conflict in ScrolledCanvas.__init__. + +- Issue #4307: The named tuple that ``inspect.getfullargspec()`` returns now + uses ``kwonlydefaults`` instead of ``kwdefaults``. + +- Issue #4298: Fix a segfault when pickle.loads is passed a ill-formed input. + +- Issue #4283: Fix a left-over "iteritems" call in distutils. + +Build +----- + +- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs". + +- Issue #4289: Remove Cancel button from AdvancedDlg. + +- Issue #1656675: Register a drop handler for .py* files on Windows. + +Tools/Demos +----------- + +- Demos of the socketserver module now work with Python 3. + + +What's New in Python 3.0 release candidate 2 +============================================ + +*Release date: 05-Nov-2008* + +Core and Builtins +----------------- + +- Issue #4211: The __path__ attribute of frozen packages is now a list instead + of a string as required by PEP 302. + +- Issue #3727: Fixed poplib. + +- Issue #3714: Fixed nntplib by using bytes where appropriate. + +- Issue #1210: Fixed imaplib and its documentation. + +- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()`` + method on file objects with closefd=False. The file descriptor is still + kept open but the file object behaves like a closed file. The ``FileIO`` + object also got a new readonly attribute ``closefd``. + +- Issue #3626: On cygwin, starting python with a non-existent script name + would not display anything if the file name is only 1 character long. + +- Issue #4176: Fixed a crash when pickling an object which ``__reduce__`` + method does not return iterators for the 4th and 5th items. + +- Issue #3723: Fixed initialization of subinterpreters. + +- Issue #4213: The file system encoding is now normalized by the + codec subsystem, for example UTF-8 is turned into utf-8. + +- Issue #4200: Changed the atexit module to store its state in its + PyModuleDef atexitmodule. This fixes a bug with multiple subinterpeters. + +- Issue #4237: io.FileIO() was raising invalid warnings caused by + insufficient initialization of PyFileIOObject struct members. + +- Issue #4170: Pickling a collections.defaultdict object would crash the + interpreter. + +- Issue #4146: Compilation on OpenBSD has been restored. + +- Issue #3574: compile() incorrectly handled source code encoded as Latin-1. + +- Issues #2384 and #3975: Tracebacks were not correctly printed when the + source file contains a ``coding:`` header: the wrong line was displayed, and + the encoding was not respected. + +- Issue #3740: Null-initialize module state. + +- Issue #3946: PyObject_CheckReadBuffer crashed on a memoryview object. + +- Issue #1688: On Windows, the input() prompt was not correctly displayed if it + contains non-ascii characters. + +- Bug #3951: Py_USING_MEMORY_DEBUGGER should not be enabled by default. + +Library +------- + +- Issue #3664: The pickle module could segfault if a subclass of Pickler fails + to call the base __init__ method. + +- Issue #3725: telnetlib now works completely in bytes. + +- Issue #4072: Restore build_py_2to3. + +- Issue #4014: Don't claim that Python has an Alpha release status, in addition + to claiming it is Mature. + +- Issue #3187: Add sys.setfilesystemencoding. + +- Issue #3187: Better support for "undecodable" filenames. Code by Victor + Stinner, with small tweaks by GvR. + +- Issue #3965: Allow repeated calls to turtle.Screen, by making it a + true singleton object. + +- Issue #3911: ftplib.FTP.makeport() could give invalid port numbers. + +- Issue #3929: When the database cannot be opened, dbm.open() would incorrectly + raise a TypeError: "'tuple' object is not callable" instead of the expected + dbm.error. + +- Bug #3884: Make the turtle module toplevel again. + +- Issue #3547: Fixed ctypes structures bitfields of varying integer + sizes. + +Extension Modules +----------------- + +- Issue #3659: Subclasses of str didn't work as SQL parameters. + +Build +----- + +- Issue #4120: Exclude manifest from extension modules in VS2008. + +- Issue #4091: Install pythonxy.dll in system32 again. + +- Issue #4018: Disable "for me" installations on Vista. + +- Issue #4204: Fixed module build errors on FreeBSD 4. + +Tools/Demos +----------- + +- Issue #3717: Fix Demo/embed/demo.c. + +- Issue #4072: Add a distutils demo for build_py_2to3. + + +What's New in Python 3.0 release candidate 1 +============================================ + +*Release date: 17-Sep-2008* + +Core and Builtins +----------------- + +- Issue #3827: memoryview lost its size attribute in favor of using len(view). + +- Issue #3813: could not lanch python.exe via symbolic link on cygwin. + +- Issue #3705: fix crash when given a non-ascii value on the command line for + the "-c" and "-m" parameters. Now the behaviour is as expected under Linux, + although under Windows it fails at a later point. + +- Issue #3279: Importing site at interpreter was failing silently because the + site module uses the open builtin which was not initialized at the time. + +- Issue #3660: Corrected a reference leak in str.encode() when the encoder + does not return a bytes object. + +- Issue #3774: Added a few more checks in PyTokenizer_FindEncoding to handle + error conditions. + +- Issue #3594: Fix Parser/tokenizer.c:fp_setreadl() to open the file being + tokenized by either a file path or file pointer for the benefit of + PyTokenizer_FindEncoding(). + +- Issue #3696: Error parsing arguments on OpenBSD <= 4.4 and Cygwin. On + these systems, the mbstowcs() function is slightly buggy and must be + replaced with strlen() for the purpose of counting of number of wide + characters needed to represent the multi-byte character string. + +- Issue #3697: "Fatal Python error: Cannot recover from stack overflow" + could be easily encountered under Windows in debug mode when exercising + the recursion limit checking code, due to bogus handling of recursion + limit when USE_STACKCHEK was enabled. + +- Issue 3639: The _warnings module could segfault the interpreter when + unexpected types were passed in as arguments. + +- Issue #3712: The memoryview object had a reference leak and didn't support + cyclic garbage collection. + +- Issue #3668: Fix a memory leak with the "s*" argument parser in + PyArg_ParseTuple and friends, which occurred when the argument for "s*" + was correctly parsed but parsing of subsequent arguments failed. + +- Issue #3611: An exception __context__ could be cleared in a complex pattern + involving a __del__ method re-raising an exception. + +- Issue #2534: speed up isinstance() and issubclass() by 50-70%, so as to + match Python 2.5 speed despite the __instancecheck__ / __subclasscheck__ + mechanism. In the process, fix a bug where isinstance() and issubclass(), + when given a tuple of classes as second argument, were looking up + __instancecheck__ / __subclasscheck__ on the tuple rather than on each + type object. + +- Issue #3663: Py_None was decref'd when printing SyntaxErrors. + +- Issue #3651: Fix various memory leaks when using the buffer + interface, or when the "s#" code of PyArg_ParseTuple is given a + bytes object. + +- Issue #3657: Fix uninitialized memory read when pickling longs. + Found by valgrind. + +- Apply security patches from Apple. + +- Fix crashes on memory allocation failure found with failmalloc. + +- Fix memory leaks found with valgrind and update suppressions file. + +- Fix compiler warnings in opt mode which would lead to invalid memory reads. + +- Fix problem using wrong name in decimal module reported by pychecker. + +- Issue #3650: Fixed a reference leak in bytes.split('x'). + +- bytes(o) now tries to use o.__bytes__() before using fallbacks. + +- Issue #1204: The configure script now tests for additional libraries + that may be required when linking against readline. This fixes issues + with x86_64 builds on some platforms (a few Linux flavors and OpenBSD). + +C API +----- + +- PyObject_Bytes and PyBytes_FromObject were added. + +Library +------- + +- Issue #3756: make re.escape() handle bytes as well as str. + +- Issue #3800: fix filter() related bug in formatter.py. + +- Issue #874900: fix behaviour of threading module after a fork. + +- Issue #3535: zipfile couldn't read some zip files larger than 2GB. + +- Issue #3776: Deprecate the bsddb package for removal in 3.0. + +- Issue #3762: platform.architecture() fails if python is lanched via + its symbolic link. + +- Issue #3660: fix a memory leak in the C accelerator of the pickle module. + +- Issue #3160: the "bdist_wininst" distutils command didn't work. + +- Issue #1658: tkinter changes dict size during iteration in both + tkinter.BaseWidget and tkinter.scrolledtext.ScrolledText. + +- The bsddb module (and therefore the dbm.bsd module) has been removed. + It is now maintained outside of the standard library at + http://www.jcea.es/programacion/pybsddb.htm. + +- Issue 600362: Relocated parse_qs() and parse_qsl(), from the cgi module + to the urlparse one. Added a DeprecationWarning in the old module, it + will be deprecated in the future. + +- Issue #3719: platform.architecture() fails if there are spaces in the + path to the Python binary. + +- Issue 3602: As part of the merge of r66135, make the parameters on + warnings.catch_warnings() keyword-only. Also remove a DeprecationWarning. + +- The deprecation warnings for the camelCase threading API names were removed. + +- Issue #3110: multiprocessing fails to compiel on solaris 10 due to missing + SEM_VALUE_MAX. + +Extension Modules +----------------- + +- Issue #3782: os.write() must not accept unicode strings. + +- Issue #2975: When compiling several extension modules with Visual Studio 2008 + from the same python interpreter, some environment variables would grow + without limit. + +- Issue #3643: Added a few more checks to _testcapi to prevent segfaults by + exploitation of poor argument checking. + +- bsddb code updated to version 4.7.3pre2. This code is the same than + Python 2.6 one, since the intention is to keep an unified 2.x/3.x codebase. + The Python code is automatically translated using "2to3". Please, do not + update this code in Python 3.0 by hand. Update the 2.6 one and then + do "2to3". + +- The _bytesio and _stringio modules are now compiled into the python binary. + +- Issue #3492 and #3790: Fixed the zlib module and zipimport module uses of + mutable bytearray objects where they should have been using immutable bytes. + +- Issue #3797: Fixed the dbm, marshal, mmap, ossaudiodev, & winreg modules to + return bytes objects instead of bytearray objects. + + +Tools/Demos +----------- + +- Fix Misc/gdbinit so it works. + + +Build +----- + +- Issue #3812: Failed to build python if configure --without-threads. + +- Issue #3791: Remove the bsddb module from the Windows installer, and the + core bsddb library from the Windows build files. + + +What's new in Python 3.0b3? +=========================== + +*Release date: 20-Aug-2008* + +Core and Builtins +----------------- + +- Issue #3653: Fix a segfault when sys.excepthook was called with invalid + arguments. + +- Issue #2394: implement more of the memoryview API, with the caveat that + only one-dimensional contiguous buffers are supported and exercised right + now. Slicing, slice assignment and comparison (equality and inequality) + have been added. Also, the tolist() method has been implemented, but only + for byte buffers. Endly, the API has been updated to return bytes objects + wherever it used to return bytearrays. + +- Issue #3560: clean up the new C PyMemoryView API so that naming is + internally consistent; add macros PyMemoryView_GET_BASE() and + PyMemoryView_GET_BUFFER() to access useful properties of a memory views + without relying on a particular implementation; remove the ill-named + PyMemoryView() function (PyMemoryView_GET_BUFFER() can be used instead). + +- ctypes function pointers that are COM methods have a boolean True + value again. + +- Issue #1819: function calls with several named parameters are now on + average 35% faster (as measured by pybench). + +- The undocumented C APIs PyUnicode_AsString() and + PyUnicode_AsStringAndSize() were made private to the interpreter, in + order to be able to refine their interfaces for Python 3.1. + + If you need to access the UTF-8 representation of a Unicode object + as bytes string, please use PyUnicode_AsUTF8String() instead. + +- Issue #3460: PyUnicode_Join() implementation is 10% to 80% faster thanks + to Python 3.0's stricter semantics which allow to avoid successive + reallocations of the result string (this also affects str.join()). + + +Library +------- + +- Issue #1276: Added temporary aliases for CJK Mac encodings to resolve + a build problem on MacOS with CJK locales. It adds four temporary + mappings to existing legacy codecs that are virtually compatible + with Mac encodings. They will be replaced by codecs correctly + implemented in 3.1. + +- Issue #3614: Corrected a typo in xmlrpc.client, leading to a NameError + "global name 'header' is not defined". + +- Issue #2834: update the regular expression library to match the unicode + standards of py3k. In other words, mixing bytes and unicode strings + (be it as pattern, search string or replacement string) raises a TypeError. + Moreover, the re.UNICODE flag is enabled automatically for unicode patterns, + and can be disabled by specifying a new re.ASCII flag; as for bytes + patterns, ASCII matching is the only option and trying to specify re.UNICODE + for such patterns raises a ValueError. + +- Issue #3300: make urllib.parse.[un]quote() default to UTF-8. + Code contributed by Matt Giuca. quote() now encodes the input + before quoting, unquote() decodes after unquoting. There are + new arguments to change the encoding and errors settings. + There are also new APIs to skip the encode/decode steps. + [un]quote_plus() are also affected. + +- Issue #2235: numbers.Number now blocks inheritance of the default id() + based hash because that hash mechanism is not correct for numeric types. + All concrete numeric types that inherit from Number (rather than just + registering with it) must explicitly provide a hash implementation in + order for their instances to be hashable. + +- Issue #2676: in the email package, content-type parsing was hanging on + pathological input because of quadratic or exponential behaviour of a + regular expression. + +- Issue #3476: binary buffered reading through the new "io" library is now + thread-safe. + +- Issue #1342811: Fix leak in Tkinter.Menu.delete. Commands associated to + menu entries were not deleted. + +- Remove the TarFileCompat class from tarfile.py. + +- Issue #2491: os.fdopen is now almost an alias for the built-in open(), and + accepts the same parameters. It just checks that its first argument is an + integer. + +- Issue #3394: zipfile.writestr sets external attributes when passed a + file name rather than a ZipInfo instance, so files are extracted with + mode 0600 rather than 000 under Unix. + +- Issue #2523: Fix quadratic behaviour when read()ing a binary file without + asking for a specific length. + +Extension Modules +----------------- + +- Bug #3542: Support Unicode strings in _msi module. + +What's new in Python 3.0b2? +=========================== + +*Release date: 17-Jul-2008* + +Core and Builtins +----------------- + +- Issue #3008: the float type has a new instance method 'float.hex' + and a new class method 'float.fromhex' to convert floating-point + numbers to and from hexadecimal strings, respectively. + +- Issue #3083: Add alternate (#) formatting for bin, oct, hex output + for str.format(). This adds the prefix 0b, 0o, or 0x, respectively. + +- Issue #3280: like chr(), the "%c" format now accepts unicode code points + beyond the Basic Multilingual Plane (above 0xffff) on all configurations. On + "narrow Unicode" builds, the result is a string of 2 code units, forming a + UTF-16 surrogate pair. + +- Issue #3282: str.isprintable() should return False for undefined + Unicode characters. + +- Issue #3236: Return small longs from PyLong_FromString. + +- Exception tracebacks now support exception chaining. + +Library +------- + +- Removed the sunaudio module. Use sunau instead. + +- Issue #3554: ctypes.string_at and ctypes.wstring_at did call Python + api functions without holding the GIL, which could lead to a fatal + error when they failed. + +- Issue #799428: Fix Tkinter.Misc._nametowidget to unwrap Tcl command objects. + +- Removed "ast" function aliases from the parser module. + +- Issue #3313: Fixed a crash when a failed dlopen() call does not set + a valid dlerror() message. + +- Issue #3258: Fixed a crash when a ctypes POINTER type to an + incomplete structure was created. + +- Issue #2683: Fix inconsistency in subprocess.Popen.communicate(): the + argument now must be a bytes object in any case. + +- Issue #3145: help("modules whatever") failed when trying to load the source + code of every single module of the standard library, including invalid files + used in the test suite. + +- The gettext library now consistently uses Unicode strings for message ids + and message strings, and ``ugettext()`` and the like don't exist anymore. + +- The traceback module has been expanded to handle chained exceptions. + +C API +----- + +- Issue #3247: the function Py_FindMethod was removed. Modern types should + use the tp_methods slot instead. + +Tools/Demos +----------- + +- The Mac/Demos directory has been removed. + +- All of the Mac scripts have been removed (including BuildApplet.py). + + +What's new in Python 3.0b1? +=========================== + +*Release date: 18-Jun-2008* + +Core and Builtins +----------------- + +- Issue #3211: warnings.warn_explicit() did not guard against its 'registry' + argument being anything other than a dict or None. Also fixed a bug in error + handling when 'message' and 'category' were both set to None, triggering a + bus error. + +- Issue #3100: Corrected a crash on deallocation of a subclassed weakref which + holds the last (strong) reference to its referent. + +- Issue #2630: implement PEP 3138. repr() now returns printable + Unicode characters unescaped, to get an ASCII-only representation + of an object use ascii(). + +- Issue #1342: On windows, Python could not start when installed in a + directory with non-ascii characters. + +- Implement PEP 3121: new module initialization and finalization API. + +- Removed the already-defunct ``-t`` option. + +- Issue #2957: Corrected a ValueError "recursion limit exceeded", when + unmarshalling many code objects, which happens when importing a + large .pyc file (~1000 functions). + +- Issue #2963: fix merging oversight that disabled method cache for + all types. + +- Issue #2964: fix a missing INCREF in instancemethod_descr_get. + +- Issue #2895: Don't crash when given bytes objects as keyword names. + +- Issue #2798: When parsing arguments with PyArg_ParseTuple, the "s" + code now allows any unicode string and returns a utf-8 encoded + buffer, just like the "s#" code already does. The "z" code was + corrected as well. + +- Issue #2863: generators now have a ``gen.__name__`` attribute that + equals ``gen.gi_code.co_name``, like ``func.__name___`` that equals + ``func.func_code.co_name``. The repr() of a generator now also + contains this name. + +- Issue #2831: enumerate() now has a ``start`` argument. + +- Issue #2801: fix bug in the float.is_integer method where a + ValueError was sometimes incorrectly raised. + +- The ``--with-toolbox-glue`` option (and the associated + pymactoolbox.h) have been removed. + +- Issue #2196: hasattr() now lets exceptions which do not inherit + Exception (KeyboardInterrupt, and SystemExit) propagate instead of + ignoring them. + +- #3021 Exception reraising sematics have been significantly improved. However, + f_exc_type, f_exc_value, and f_exc_traceback cannot be accessed from Python + code anymore. + +- Three of PyNumberMethods' members, nb_coerce, nb_hex, and nb_oct, have been + removed. + +Extension Modules +----------------- + +- Renamed ``_winreg`` module to ``winreg``. + +- Support os.O_ASYNC and fcntl.FASYNC if the constants exist on the + platform. + +- Support for Windows 9x has been removed from the winsound module. + +- Issue #2870: cmathmodule.c compile error. + +Library +------- + +- The methods ``is_in_tuple()``, ``is_vararg()``, and ``is_keywordarg()`` of + symtable.Symbol have been removed. + +- Patch #3133: http.server.CGIHTTPRequestHandler did not work on windows. + +- a new ``urllib`` package was created. It consists of code from + ``urllib``, ``urllib2``, ``urlparse``, and ``robotparser``. The old + modules have all been removed. The new package has five submodules: + ``urllib.parse``, ``urllib.request``, ``urllib.response``, + ``urllib.error``, and ``urllib.robotparser``. The + ``urllib.request.urlopen()`` function uses the url opener from + ``urllib2``. (Note that the unittests have not been renamed for the + beta, but they will be renamed in the future.) + +- rfc822 has been removed in favor of the email package. + +- mimetools has been removed in favor of the email package. + +- Patch #2849: Remove use of rfc822 module from standard library. + +- Added C optimized implementation of io.StringIO. + +- The ``pickle`` module is now automatically use an optimized C + implementation of Pickler and Unpickler when available. The + ``cPickle`` module is no longer needed. + +- Removed the ``htmllib`` and ``sgmllib`` modules. + +- The deprecated ``SmartCookie`` and ``SimpleCookie`` classes have + been removed from ``http.cookies``. + +- The ``commands`` module has been removed. Its getoutput() and + getstatusoutput() functions have been moved to the ``subprocess`` module. + +- The ``http`` package was created; it contains the old ``httplib`` + as ``http.client``, ``Cookie`` as ``http.cookies``, ``cookielib`` + as ``http.cookiejar``, and the content of the three ``HTTPServer`` + modules as ``http.server``. + +- The ``xmlrpc`` package was created; it contains the old + ``xmlrpclib`` module as ``xmlrpc.client`` and the content of + the old ``SimpleXMLRPCServer`` and ``DocXMLRPCServer`` modules + as ``xmlrpc.server``. + +- The ``dbm`` package was created, containing the old modules + ``anydbm`` and ``whichdb`` in its ``__init__.py``, and having + ``dbm.gnu`` (was ``gdbm``), ``dbm.bsd`` (was ``dbhash``), + ``dbm.ndbm`` (was ``dbm``) and ``dbm.dumb`` (was ``dumbdbm``) + as submodules. + +- The ``repr`` module has been renamed to ``reprlib``. + +- The ``statvfs`` module has been removed. + +- Issue #1713041: fix pprint's handling of maximum depth. + +- Issue #2250: Exceptions raised during evaluation of names in + rlcompleter's ``Completer.complete()`` method are now caught and + ignored. + +- Patch #2659: Added ``break_on_hyphens`` option to textwrap's + ``TextWrapper`` class. + +- Issue #2487: change the semantics of math.ldexp(x, n) when n is too + large to fit in a C long. ldexp(x, n) now returns a zero (with + suitable sign) if n is large and negative; previously, it raised + OverflowError. + +- The ``ConfigParser`` module has been renamed to ``configparser``. + +- Issue #2865: webbrowser.open() works again in a KDE environment. + +- The ``multifile`` module has been removed. + +- The ``SocketServer`` module has been renamed to ``socketserver``. + +- Fixed the ``__all__`` setting on ``collections`` to include + ``UserList`` and ``UserString``. + +- The sre module has been removed. + +- The Queue module has been renamed to queue. + +- The copy_reg module has been renamed to copyreg. + +- The mhlib module has been removed. + +- The ihooks module has been removed. + +- The fpformat module has been removed. + +- The dircache module has been removed. + +- The Canvas module has been removed. + +- The Decimal module gained the magic methods __round__, __ceil__, + __floor__ and __trunc__, to give support for round, math.ceil, + math.floor and math.trunc. + +- The user module has been removed. + +- The mutex module has been removed. + +- The imputil module has been removed. + +- os.path.walk has been removed in favor of os.walk. + +- pdb gained the "until" command. + +- The test.test_support module has been renamed to test.support. + +- The threading module API was renamed to be PEP 8 compliant. The + old names are still present, but will be removed in the near future. + +Tools/Demos +----------- + +- The bgen tool has been removed. + +Build +----- + + +What's New in Python 3.0a5? +=========================== + +*Release date: 08-May-2008* + +Core and Builtins +----------------- + +- Fixed misbehaviour of PyLong_FromSsize_t on systems where + sizeof(size_t) > sizeof(long). + +- Issue #2221: Corrected a SystemError "error return without exception + set", when the code executed by exec() raises an exception, and + sys.stdout.flush() also raises an error. + +- Bug #2565: The repr() of type objects now calls them 'class', not + 'type' - whether they are builtin types or not. + +- The command line processing was converted to pass Unicode strings + through as unmodified as possible; as a consequence, the C API + related to command line arguments was changed to use wchar_t. + +- All backslashes in raw strings are interpreted literally. This + means that '\u' and '\U' escapes are not treated specially. + +Extension Modules +----------------- + +Library +------- + +- ctypes objects now support the PEP3118 buffer interface. + +- Issue #2682: ctypes callback functions now longer contain a cyclic + reference to themselves. + +- Issue #2058: Remove the buf attribute and add __slots__ to the + TarInfo class in order to reduce tarfile's memory usage. + +- Bug #2606: Avoid calling .sort() on a dict_keys object. + +- The bundled libffi copy is now in sync with the recently released + libffi3.0.5 version, apart from some small changes to + Modules/_ctypes/libffi/configure.ac. + +Build +----- + +- Issue #1496032: On alpha, use -mieee when gcc is the compiler. + +- "make install" is now an alias for "make altinstall", to prevent + accidentally overwriting a Python 2.x installation. Use "make + fullinstall" to force Python 3.0 to be installed as "python". + +- Issue #2544: On HP-UX systems, use 'gcc -shared' for linking when + gcc is used as compiler. + + +What's New in Python 3.0a4? +=========================== + +*Release date: 02-Apr-2008* + +Core and Builtins +----------------- + +- Bug #2301: Don't try decoding the source code into the original + encoding for syntax errors. + +Extension Modules +----------------- + +- The dl module was removed, use the ctypes module instead. + +- Use wchar_t functions in _locale module. + +Library +------- + +- The class distutils.commands.build_py.build_py_2to3 can be used as a + build_py replacement to automatically run 2to3 on modules that are + going to be installed. + +- A new pickle protocol (protocol 3) is added with explicit support + for bytes. This is the default protocol. It intentionally cannot + be unpickled by Python 2.x. + +- When a pickle written by Python 2.x contains an (8-bit) str + instance, this is now decoded to a (Unicode) str instance. The + encoding used to do this defaults to ASCII, but can be overridden + via two new keyword arguments to the Unpickler class. Previously + this would create bytes instances, which is usually wrong: str + instances are often used to pickle attribute names etc., and text is + more common than binary data anyway. + +- Default to ASCII as the locale.getpreferredencoding, if the POSIX + system doesn't support CODESET and LANG isn't set or doesn't allow + deduction of an encoding. + +- Issue #1202: zlib.crc32 and zlib.adler32 now return an unsigned + value. + +- Issue #719888: Updated tokenize to use a bytes API. generate_tokens + has been renamed tokenize and now works with bytes rather than + strings. A new detect_encoding function has been added for + determining source file encoding according to PEP-0263. Token + sequences returned by tokenize always start with an ENCODING token + which specifies the encoding used to decode the file. This token is + used to encode the output of untokenize back to bytes. + + +What's New in Python 3.0a3? +=========================== + +*Release date: 29-Feb-2008* + +Core and Builtins +----------------- + +- Issue #2282: io.TextIOWrapper was not overriding seekable() from + io.IOBase. + +- Issue #2115: Important speedup in setting __slot__ attributes. Also + prevent a possible crash: an Abstract Base Class would try to access + a slot on a registered virtual subclass. + +- Fixed repr() and str() of complex numbers with infinity or nan as + real or imaginary part. + +- Clear all free list during a gc.collect() of the highest generation + in order to allow pymalloc to free more arenas. Python may give back + memory to the OS earlier. + +- Issue #2045: Fix an infinite recursion triggered when printing a + subclass of collections.defaultdict, if its default_factory is set + to a bound method. + +- Fixed a minor memory leak in dictobject.c. The content of the free + list was not freed on interpreter shutdown. + +- Limit free list of method and builtin function objects to 256 + entries each. + +- Patch #1953: Added ``sys._compact_freelists()`` and the C API + functions ``PyInt_CompactFreeList`` and ``PyFloat_CompactFreeList`` + to compact the internal free lists of pre-allocted ints and floats. + +- Bug #1983: Fixed return type of fork(), fork1() and forkpty() calls. + Python expected the return type int but the fork familie returns + pi_t. + +- Issue #1678380: Fix a bug that identifies 0j and -0j when they + appear in the same code unit. + +- Issue #2025: Added tuple.count() and tuple.index() methods to comply + with the collections.Sequence API. + +- Fixed multiple reinitialization of the Python interpreter. The small + int list in longobject.c has caused a seg fault during the third + finalization. + +- Issue #1973: bytes.fromhex('') raised SystemError. + +- Issue #1771: remove cmp parameter from sorted() and list.sort(). + +- Issue #1969: split and rsplit in bytearray are inconsistent. + +- map() no longer accepts None for the first argument. Use zip() + instead. + +- Issue #1769: Now int("- 1") is not allowed any more. + +- Object/longobject.c: long(float('nan')) raises an OverflowError + instead of returning 0. + +- Issue #1762972: __file__ points to the source file instead of the + pyc/pyo file if the py file exists. + +- Issue #1393: object_richcompare() returns NotImplemented instead of + False if the objects aren't equal, to give the other side a chance. + +- Issue #1692: Interpreter was not displaying location of SyntaxError. + +- Improve some exception messages when Windows fails to load an + extension module. Now we get for example '%1 is not a valid Win32 + application' instead of 'error code 193'. Also use Unicode strings + to deal with non-English locales. + +- Issue #1587: Added instancemethod wrapper for PyCFunctions. The + Python C API has gained a new type *PyInstanceMethod_Type* and the + functions *PyInstanceMethod_Check(o)*, *PyInstanceMethod_New(func)* + and *PyInstanceMethod_Function(im)*. + +- Constants gc.DEBUG_OBJECT and gc.DEBUG_INSTANCE have been removed + from the gc module; gc.DEBUG_COLLECTABLE or gc.DEBUG_UNCOLLECTABLE + are now enough to print the corresponding list of objects considered + by the garbage collector. + +- Issue #1573: Improper use of the keyword-only syntax makes the + parser crash. + +- Issue #1564: The set implementation should special-case PyUnicode + instead of PyString. + +- Patch #1031213: Decode source line in SyntaxErrors back to its + original source encoding. + +- inspect.getsource() includes the decorators again. + +- Bug #1713: posixpath.ismount() claims symlink to a mountpoint is a + mountpoint. + +- Fix utf-8-sig incremental decoder, which didn't recognise a BOM when + the first chunk fed to the decoder started with a BOM, but was + longer than 3 bytes. + +Extension Modules +----------------- + +- Code for itertools ifilter(), imap(), and izip() moved to bultins + and renamed to filter(), map(), and zip(). Also, renamed + izip_longest() to zip_longest() and ifilterfalse() to filterfalse(). + +- Issue #1762972: Readded the reload() function as imp.reload(). + +- Bug #2111: mmap segfaults when trying to write a block opened with + PROT_READ. + +- Issue #2063: correct order of utime and stime in os.times() result + on Windows. + +Library +------- + +- Weakref dictionaries now inherit from MutableMapping. + +- Created new UserDict class in collections module. This one inherits + from and complies with the MutableMapping ABC. Also, moved + UserString and UserList to the collections module. The + MutableUserString class was removed. + +- Removed UserDict.DictMixin. Replaced all its uses with + collections.MutableMapping. + +- Issue #1703: getpass() should flush after writing prompt. + +- Issue #1585: IDLE uses non-existent xrange() function. + +- Issue #1578: Problems in win_getpass. + +Build +----- + +- Renamed --enable-unicode configure flag to --with-wide-unicode, + since Unicode strings can't be disabled anymore. + +C API +----- + +- Issue #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, + Py_TYPE and Py_REFCNT. + +- New API PyImport_ImportModuleNoBlock(), works like + PyImport_ImportModule() but won't block on the import lock + (returning an error instead). + + +What's New in Python 3.0a2? +=========================== + +*Release date: 07-Dec-2007* + +(Note: this list is incomplete.) + +Core and Builtins +----------------- + +- str8 now has the same construction signature as bytes. + +- Comparisons between str and str8 now return False/True for ==/!=. + sqlite3 returns str8 when recreating on object from it's __conform__ + value. The struct module returns str8 for all string-related + formats. This was true before this change, but becomes more + apparent thanks to string comparisons always being False. + +- Replaced `PyFile_FromFile()` with `PyFile_FromFd(fd, name. mode, + buffer, encoding, newline)`. + +- Fixed `imp.find_module()` to obey the -*- coding: -*- header. + +- Changed `__file__` and `co_filename` to unicode. The path names are decoded + with `Py_FileSystemDefaultEncoding` and a new API method + `PyUnicode_DecodeFSDefault(char*)` was added. + +- io.open() and _fileio.FileIO have grown a new argument closefd. A + false value disables the closing of the file descriptor. + +- Added a new option -b to issues warnings (-bb for errors) about + certain operations between bytes/buffer and str like str(b'') and + comparison. + +- The standards streams sys.stdin, stdout and stderr may be None when + the when the C runtime library returns an invalid file descriptor + for the streams (fileno(stdin) < 0). For now this happens only for + Windows GUI apps and scripts started with `pythonw.exe`. + +- Added PCbuild9 directory for VS 2008. + +- Renamed structmember.h WRITE_RESTRICTED to PY_WRITE_RESTRICTED to + work around a name clash with VS 2008 on Windows. + +- Unbound methods are gone for good. ClassObject.method returns an + ordinary function object, instance.method still returns a bound + method object. The API of bound methods is cleaned up, too. The + im_class attribute is removed and im_func + im_self are renamed to + __func__ and __self__. The factory PyMethod_New takes only func and + instance as argument. + +- intobject.h is no longer included by Python.h. The remains were + moved to longobject.h. It still exists to define several aliases + from PyInt to PyLong functions. + +- Removed sys.maxint, use sys.maxsize instead. + +Extension Modules +----------------- + +- The `hotshot` profiler has been removed; use `cProfile` instead. + +Library +------- + +- When loading an external file using testfile(), the passed-in + encoding argument was being ignored if __loader__ is defined and + forcing the source to be UTF-8. + +- The methods `os.tmpnam()`, `os.tempnam()` and `os.tmpfile()` have + been removed in favor of the tempfile module. + +- Removed the 'new' module. + +- Removed all types from the 'types' module that are easily accessable + through builtins. + + +What's New in Python 3.0a1? +=========================== + +*Release date: 31-Aug-2007* + +Core and Builtins +----------------- + +- PEP 3131: Support non-ASCII identifiers. + +- PEP 3120: Change default encoding to UTF-8. + +- PEP 3123: Use proper C inheritance for PyObject. + +- Removed the __oct__ and __hex__ special methods and added a bin() + builtin function. + +- PEP 3127: octal literals now start with "0o". Old-style octal + literals are invalid. There are binary literals with a prefix of + "0b". This also affects int(x, 0). + +- None, True, False are now keywords. + +- PEP 3119: isinstance() and issubclass() can be overridden. + +- Remove BaseException.message. + +- Remove tuple parameter unpacking (PEP 3113). + +- Remove the f_restricted attribute from frames. This naturally leads + to the removal of PyEval_GetRestricted() and PyFrame_IsRestricted(). + +- PEP 3132 was accepted. That means that you can do ``a, *b = + range(5)`` to assign 0 to a and [1, 2, 3, 4] to b. + +- range() now returns an iterator rather than a list. Floats are not + allowed. xrange() is no longer defined. + +- Patch #1660500: hide iteration variable in list comps, add set comps + and use common code to handle compilation of iterative expressions. + +- By default, != returns the opposite of ==, unless the latter returns + NotImplemented. + +- Patch #1680961: sys.exitfunc has been removed and replaced with a + private C-level API. + +- PEP 3115: new metaclasses: the metaclass is now specified as a + keyword arg in the class statement, which can now use the full + syntax of a parameter list. Also, the metaclass can implement a + __prepare__ function which will be called to create the dictionary + for the new class namespace. + +- The long-deprecated argument "pend" of PyFloat_FromString() has been + removed. + +- The dir() function has been extended to call the __dir__() method on + its argument, if it exists. If not, it will work like before. This + allows customizing the output of dir() in the presence of a + __getattr__(). + +- Removed support for __members__ and __methods__. + +- Removed indexing/slicing on BaseException. + +- input() became raw_input(): the name input() now implements the + functionality formerly known as raw_input(); the name raw_input() is + no longer defined. + +- Classes listed in an 'except' clause must inherit from + BaseException. + +- PEP 3106: dict.iterkeys(), .iteritems(), .itervalues() are now gone; + and .keys(), .items(), .values() return dict views, which behave + like sets. + +- PEP 3105: print is now a function. Also (not in the PEP) the + 'softspace' attribute of files is now gone (since print() doesn't + use it). A side effect of this change is that you can get + incomplete output lines in interactive sessions: + + >>> print(42, end="") + 42>>> + + We may be able to fix this after the I/O library rewrite. + +- PEP 3102: keyword-only arguments. + +- Int/Long unification is complete. The 'long' built-in type and + literals with trailing 'L' or 'l' have been removed. Performance + may be sub-optimal (haven't really benchmarked). + +- 'except E, V' must now be spelled as 'except E as V' and deletes V + at the end of the except clause; V must be a simple name. + +- Added function annotations per PEP 3107. + +- Added nonlocal declaration from PEP 3104: + + >>> def f(x): + ... def inc(): + ... nonlocal x + ... x += 1 + ... return x + ... return inc + ... + >>> inc = f(0) + >>> inc() + 1 + >>> inc() + 2 + +- Moved intern() to sys.intern(). + +- exec is now a function. + +- Renamed nb_nonzero to nb_bool and __nonzero__ to __bool__. + +- Classic classes are a thing of the past. All classes are new style. + +- Exceptions *must* derive from BaseException. + +- Integer division always returns a float. The -Q option is no more. + All the following are gone: + + * PyNumber_Divide and PyNumber_InPlaceDivide + * __div__, __rdiv__, and __idiv__ + * nb_divide, nb_inplace_divide + * operator.div, operator.idiv, operator.__div__, operator.__idiv__ + (Only __truediv__ and __floordiv__ remain, not sure how to handle + them if we want to re-use __div__ and friends. If we do, it will + make it harder to write code for both 2.x and 3.x.) + +- 'as' and 'with' are keywords. + +- Absolute import is the default behavior for 'import foo' etc. + +- Removed support for syntax: backticks (ie, `x`), <>. + +- Removed these Python builtins: apply(), callable(), coerce(), + execfile(), file(), reduce(), reload(). + +- Removed these Python methods: {}.has_key. + +- Removed these opcodes: BINARY_DIVIDE, INPLACE_DIVIDE, UNARY_CONVERT. + +- Remove C API support for restricted execution. + +- zip(), map() and filter() now return iterators, behaving like their + itertools counterparts. This also affect map()'s behavior on + sequences of unequal length -- it now stops after the shortest one + is exhausted. + +- Additions: set literals, set comprehensions, ellipsis literal. + +- Added class decorators per PEP 3129. + + +Extension Modules +----------------- + +- Removed the imageop module. Obsolete long with its unit tests + becoming useless from the removal of rgbimg and imgfile. + +- Removed these attributes from the operator module: div, idiv, + __div__, __idiv__, isCallable, sequenceIncludes. + +- Removed these attributes from the sys module: exc_clear(), exc_type, + exc_value, exc_traceback. + + +Library +------- + +- Removed the compiler package. Use of the _ast module and (an + eventual) AST -> bytecode mechanism. + +- Removed these modules: audiodev, Bastion, bsddb185, exceptions, + linuxaudiodev, md5, MimeWriter, mimify, popen2, rexec, sets, sha, + stringold, strop, sunaudiodev, timing, xmllib. + +- Moved the toaiff module to Tools/Demos. + +- Removed obsolete IRIX modules: al/AL, cd/CD, cddb, cdplayer, cl/CL, + DEVICE, ERRNO, FILE, fl/FL, flp, fm, GET, gl/GL, GLWS, IN, imgfile, + IOCTL, jpeg, panel, panelparser, readcd, sgi, sv/SV, torgb, WAIT. + +- Removed obsolete functions: commands.getstatus(), os.popen*(). + +- Removed functions in the string module that are also string methods; + Remove string.{letters, lowercase, uppercase}. + +- Removed support for long obsolete platforms: plat-aix3, plat-irix5. + +- Removed xmlrpclib.SlowParser. It was based on xmllib. + +- Patch #1680961: atexit has been reimplemented in C. + +- Add new codecs for UTF-32, UTF-32-LE and UTF-32-BE. + +Build +----- + +C API +----- + +- Removed these Python slots: __coerce__, __div__, __idiv__, __rdiv__. + +- Removed these C APIs: PyNumber_Coerce(), PyNumber_CoerceEx(), + PyMember_Get, PyMember_Set. + +- Removed these C slots/fields: nb_divide, nb_inplace_divide. + +- Removed these macros: staticforward, statichere, PyArg_GetInt, + PyArg_NoArgs, _PyObject_Del. + +- Removed these typedefs: intargfunc, intintargfunc, intobjargproc, + intintobjargproc, getreadbufferproc, getwritebufferproc, + getsegcountproc, getcharbufferproc, memberlist. + +Tests +----- + +- Removed test.testall as test.regrtest replaces it. + +Documentation +------------- + +Mac +--- + +- The cfmfile module was removed. + +Platforms +--------- + +- Support for BeOS and AtheOS was removed (according to PEP 11). + +- Support for RiscOS, Irix, Tru64 was removed (alledgedly). + +Tools/Demos +----------- + + What's New in Python 2.5 release candidate 1? ============================================= diff --git a/Misc/NEWS b/Misc/NEWS index b1bd085..3e4c54d 100644 --- a/Misc/NEWS +++ b/Misc/NEWS @@ -4,1394 +4,25 @@ Python News (editors: check NEWS.help for information about editing NEWS using ReST.) -What's New in Python 3.0 final -============================== +What's New in Python 3.1 alpha 0 +================================ *Release date: XX-XXX-2008* Core and Builtins ----------------- -- Issue #3996: On Windows, the PyOS_CheckStack function would cause the - interpreter to abort ("Fatal Python error: Could not reset the stack!") - instead of throwing a MemoryError. - -- Issue #3689: The list reversed iterator now supports __length_hint__ - instead of __len__. Behavior now matches other reversed iterators. - -- Issue #4367: Python would segfault during compiling when the unicodedata - module couldn't be imported and \N escapes were present. - -- Fix build failure of _cursesmodule.c building with -D_FORTIFY_SOURCE=2. Library ------- -- Issue #4387: binascii now refuses to accept str as binary input. - -- Issue #4073: Add 2to3 support to build_scripts, refactor that support - in build_py. - -- IDLE would print a "Unhandled server exception!" message when internal - debugging is enabled. - -- Issue #4455: IDLE failed to display the windows list when two windows have - the same title. - -- Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an - exception. - -- Issue #4433: Fixed an access violation when garbage collecting - _ctypes.COMError instances. - -- Issue #4429: Fixed UnicodeDecodeError in ctypes. - -- Issue #4373: Corrected a potential reference leak in the pickle module and - silenced a false positive ref leak in distutils.tests.test_build_ext. - -- Issue #4382: dbm.dumb did not specify the expected file encoding for opened - files. - -- Issue #4383: When IDLE cannot make the connection to its subprocess, it would - fail to properly display the error message. Build ----- -- Issue #4407: Fix source file that caused the compileall step in Windows installer - to fail. Docs ---- -- Issue #4449: Fixed multiprocessing examples - -- Issue #3799: Document that dbm.gnu and dbm.ndbm will accept string arguments - for keys and values which will be converted to bytes before committal. - - -What's New in Python 3.0 release candidate 3? -============================================= - -*Release date: 20-Nov-2008* - - -Core and Builtins ------------------ - -- Issue #4349: sys.path included a non-existent platform directory because of a - faulty Makefile. - -- Issue #3327: Don't overallocate in the modules_by_index list. - -- Issue #1721812: Binary set operations and copy() returned the input type - instead of the appropriate base type. This was incorrect because set - subclasses would be created without their __init__() method being called. - The corrected behavior brings sets into line with lists and dicts. - -- Issue #4296: Fix PyObject_RichCompareBool so that "x in [x]" evaluates to - True, even when x doesn't compare equal to itself. This was a regression - from 2.6. - -- Issue #3705: Command-line arguments were not correctly decoded when the - terminal does not use UTF8. - -Library -------- - -- Issue #4363: The uuid.uuid1() and uuid.uuid4() functions now work even if - the ctypes module is not present. - -- FileIO's mode attribute now always includes ``"b"``. - -- Issue #3799: Fix dbm.dumb to accept strings as well as bytes for keys. String - keys are now written out in UTF-8. - -- Issue #4338: Fix distutils upload command. - -- Issue #4354: Fix distutils register command. - -- Issue #4116: Resolve member name conflict in ScrolledCanvas.__init__. - -- Issue #4307: The named tuple that ``inspect.getfullargspec()`` returns now - uses ``kwonlydefaults`` instead of ``kwdefaults``. - -- Issue #4298: Fix a segfault when pickle.loads is passed a ill-formed input. - -- Issue #4283: Fix a left-over "iteritems" call in distutils. - -Build ------ - -- Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs". - -- Issue #4289: Remove Cancel button from AdvancedDlg. - -- Issue #1656675: Register a drop handler for .py* files on Windows. - -Tools/Demos ------------ - -- Demos of the socketserver module now work with Python 3. - - -What's New in Python 3.0 release candidate 2 -============================================ - -*Release date: 05-Nov-2008* - -Core and Builtins ------------------ - -- Issue #4211: The __path__ attribute of frozen packages is now a list instead - of a string as required by PEP 302. - -- Issue #3727: Fixed poplib. - -- Issue #3714: Fixed nntplib by using bytes where appropriate. - -- Issue #1210: Fixed imaplib and its documentation. - -- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()`` - method on file objects with closefd=False. The file descriptor is still - kept open but the file object behaves like a closed file. The ``FileIO`` - object also got a new readonly attribute ``closefd``. - -- Issue #3626: On cygwin, starting python with a non-existent script name - would not display anything if the file name is only 1 character long. - -- Issue #4176: Fixed a crash when pickling an object which ``__reduce__`` - method does not return iterators for the 4th and 5th items. - -- Issue #3723: Fixed initialization of subinterpreters. - -- Issue #4213: The file system encoding is now normalized by the - codec subsystem, for example UTF-8 is turned into utf-8. - -- Issue #4200: Changed the atexit module to store its state in its - PyModuleDef atexitmodule. This fixes a bug with multiple subinterpeters. - -- Issue #4237: io.FileIO() was raising invalid warnings caused by - insufficient initialization of PyFileIOObject struct members. - -- Issue #4170: Pickling a collections.defaultdict object would crash the - interpreter. - -- Issue #4146: Compilation on OpenBSD has been restored. - -- Issue #3574: compile() incorrectly handled source code encoded as Latin-1. - -- Issues #2384 and #3975: Tracebacks were not correctly printed when the - source file contains a ``coding:`` header: the wrong line was displayed, and - the encoding was not respected. - -- Issue #3740: Null-initialize module state. - -- Issue #3946: PyObject_CheckReadBuffer crashed on a memoryview object. - -- Issue #1688: On Windows, the input() prompt was not correctly displayed if it - contains non-ascii characters. - -- Bug #3951: Py_USING_MEMORY_DEBUGGER should not be enabled by default. - -Library -------- - -- Issue #3664: The pickle module could segfault if a subclass of Pickler fails - to call the base __init__ method. - -- Issue #3725: telnetlib now works completely in bytes. - -- Issue #4072: Restore build_py_2to3. - -- Issue #4014: Don't claim that Python has an Alpha release status, in addition - to claiming it is Mature. - -- Issue #3187: Add sys.setfilesystemencoding. - -- Issue #3187: Better support for "undecodable" filenames. Code by Victor - Stinner, with small tweaks by GvR. - -- Issue #3965: Allow repeated calls to turtle.Screen, by making it a - true singleton object. - -- Issue #3911: ftplib.FTP.makeport() could give invalid port numbers. - -- Issue #3929: When the database cannot be opened, dbm.open() would incorrectly - raise a TypeError: "'tuple' object is not callable" instead of the expected - dbm.error. - -- Bug #3884: Make the turtle module toplevel again. - -- Issue #3547: Fixed ctypes structures bitfields of varying integer - sizes. - -Extension Modules ------------------ - -- Issue #3659: Subclasses of str didn't work as SQL parameters. - -Build ------ - -- Issue #4120: Exclude manifest from extension modules in VS2008. - -- Issue #4091: Install pythonxy.dll in system32 again. - -- Issue #4018: Disable "for me" installations on Vista. - -- Issue #4204: Fixed module build errors on FreeBSD 4. - -Tools/Demos ------------ - -- Issue #3717: Fix Demo/embed/demo.c. - -- Issue #4072: Add a distutils demo for build_py_2to3. - - -What's New in Python 3.0 release candidate 1 -============================================ - -*Release date: 17-Sep-2008* - -Core and Builtins ------------------ - -- Issue #3827: memoryview lost its size attribute in favor of using len(view). - -- Issue #3813: could not lanch python.exe via symbolic link on cygwin. - -- Issue #3705: fix crash when given a non-ascii value on the command line for - the "-c" and "-m" parameters. Now the behaviour is as expected under Linux, - although under Windows it fails at a later point. - -- Issue #3279: Importing site at interpreter was failing silently because the - site module uses the open builtin which was not initialized at the time. - -- Issue #3660: Corrected a reference leak in str.encode() when the encoder - does not return a bytes object. - -- Issue #3774: Added a few more checks in PyTokenizer_FindEncoding to handle - error conditions. - -- Issue #3594: Fix Parser/tokenizer.c:fp_setreadl() to open the file being - tokenized by either a file path or file pointer for the benefit of - PyTokenizer_FindEncoding(). - -- Issue #3696: Error parsing arguments on OpenBSD <= 4.4 and Cygwin. On - these systems, the mbstowcs() function is slightly buggy and must be - replaced with strlen() for the purpose of counting of number of wide - characters needed to represent the multi-byte character string. - -- Issue #3697: "Fatal Python error: Cannot recover from stack overflow" - could be easily encountered under Windows in debug mode when exercising - the recursion limit checking code, due to bogus handling of recursion - limit when USE_STACKCHEK was enabled. - -- Issue 3639: The _warnings module could segfault the interpreter when - unexpected types were passed in as arguments. - -- Issue #3712: The memoryview object had a reference leak and didn't support - cyclic garbage collection. - -- Issue #3668: Fix a memory leak with the "s*" argument parser in - PyArg_ParseTuple and friends, which occurred when the argument for "s*" - was correctly parsed but parsing of subsequent arguments failed. - -- Issue #3611: An exception __context__ could be cleared in a complex pattern - involving a __del__ method re-raising an exception. - -- Issue #2534: speed up isinstance() and issubclass() by 50-70%, so as to - match Python 2.5 speed despite the __instancecheck__ / __subclasscheck__ - mechanism. In the process, fix a bug where isinstance() and issubclass(), - when given a tuple of classes as second argument, were looking up - __instancecheck__ / __subclasscheck__ on the tuple rather than on each - type object. - -- Issue #3663: Py_None was decref'd when printing SyntaxErrors. - -- Issue #3651: Fix various memory leaks when using the buffer - interface, or when the "s#" code of PyArg_ParseTuple is given a - bytes object. - -- Issue #3657: Fix uninitialized memory read when pickling longs. - Found by valgrind. - -- Apply security patches from Apple. - -- Fix crashes on memory allocation failure found with failmalloc. - -- Fix memory leaks found with valgrind and update suppressions file. - -- Fix compiler warnings in opt mode which would lead to invalid memory reads. - -- Fix problem using wrong name in decimal module reported by pychecker. - -- Issue #3650: Fixed a reference leak in bytes.split('x'). - -- bytes(o) now tries to use o.__bytes__() before using fallbacks. - -- Issue #1204: The configure script now tests for additional libraries - that may be required when linking against readline. This fixes issues - with x86_64 builds on some platforms (a few Linux flavors and OpenBSD). - -C API ------ - -- PyObject_Bytes and PyBytes_FromObject were added. - -Library -------- - -- Issue #3756: make re.escape() handle bytes as well as str. - -- Issue #3800: fix filter() related bug in formatter.py. - -- Issue #874900: fix behaviour of threading module after a fork. - -- Issue #3535: zipfile couldn't read some zip files larger than 2GB. - -- Issue #3776: Deprecate the bsddb package for removal in 3.0. - -- Issue #3762: platform.architecture() fails if python is lanched via - its symbolic link. - -- Issue #3660: fix a memory leak in the C accelerator of the pickle module. - -- Issue #3160: the "bdist_wininst" distutils command didn't work. - -- Issue #1658: tkinter changes dict size during iteration in both - tkinter.BaseWidget and tkinter.scrolledtext.ScrolledText. - -- The bsddb module (and therefore the dbm.bsd module) has been removed. - It is now maintained outside of the standard library at - http://www.jcea.es/programacion/pybsddb.htm. - -- Issue 600362: Relocated parse_qs() and parse_qsl(), from the cgi module - to the urlparse one. Added a DeprecationWarning in the old module, it - will be deprecated in the future. - -- Issue #3719: platform.architecture() fails if there are spaces in the - path to the Python binary. - -- Issue 3602: As part of the merge of r66135, make the parameters on - warnings.catch_warnings() keyword-only. Also remove a DeprecationWarning. - -- The deprecation warnings for the camelCase threading API names were removed. - -- Issue #3110: multiprocessing fails to compiel on solaris 10 due to missing - SEM_VALUE_MAX. - -Extension Modules ------------------ - -- Issue #3782: os.write() must not accept unicode strings. - -- Issue #2975: When compiling several extension modules with Visual Studio 2008 - from the same python interpreter, some environment variables would grow - without limit. - -- Issue #3643: Added a few more checks to _testcapi to prevent segfaults by - exploitation of poor argument checking. - -- bsddb code updated to version 4.7.3pre2. This code is the same than - Python 2.6 one, since the intention is to keep an unified 2.x/3.x codebase. - The Python code is automatically translated using "2to3". Please, do not - update this code in Python 3.0 by hand. Update the 2.6 one and then - do "2to3". - -- The _bytesio and _stringio modules are now compiled into the python binary. - -- Issue #3492 and #3790: Fixed the zlib module and zipimport module uses of - mutable bytearray objects where they should have been using immutable bytes. - -- Issue #3797: Fixed the dbm, marshal, mmap, ossaudiodev, & winreg modules to - return bytes objects instead of bytearray objects. - - -Tools/Demos ------------ - -- Fix Misc/gdbinit so it works. - - -Build ------ - -- Issue #3812: Failed to build python if configure --without-threads. - -- Issue #3791: Remove the bsddb module from the Windows installer, and the - core bsddb library from the Windows build files. - - -What's new in Python 3.0b3? -=========================== - -*Release date: 20-Aug-2008* - -Core and Builtins ------------------ - -- Issue #3653: Fix a segfault when sys.excepthook was called with invalid - arguments. - -- Issue #2394: implement more of the memoryview API, with the caveat that - only one-dimensional contiguous buffers are supported and exercised right - now. Slicing, slice assignment and comparison (equality and inequality) - have been added. Also, the tolist() method has been implemented, but only - for byte buffers. Endly, the API has been updated to return bytes objects - wherever it used to return bytearrays. - -- Issue #3560: clean up the new C PyMemoryView API so that naming is - internally consistent; add macros PyMemoryView_GET_BASE() and - PyMemoryView_GET_BUFFER() to access useful properties of a memory views - without relying on a particular implementation; remove the ill-named - PyMemoryView() function (PyMemoryView_GET_BUFFER() can be used instead). - -- ctypes function pointers that are COM methods have a boolean True - value again. - -- Issue #1819: function calls with several named parameters are now on - average 35% faster (as measured by pybench). - -- The undocumented C APIs PyUnicode_AsString() and - PyUnicode_AsStringAndSize() were made private to the interpreter, in - order to be able to refine their interfaces for Python 3.1. - - If you need to access the UTF-8 representation of a Unicode object - as bytes string, please use PyUnicode_AsUTF8String() instead. - -- Issue #3460: PyUnicode_Join() implementation is 10% to 80% faster thanks - to Python 3.0's stricter semantics which allow to avoid successive - reallocations of the result string (this also affects str.join()). - - -Library -------- - -- Issue #1276: Added temporary aliases for CJK Mac encodings to resolve - a build problem on MacOS with CJK locales. It adds four temporary - mappings to existing legacy codecs that are virtually compatible - with Mac encodings. They will be replaced by codecs correctly - implemented in 3.1. - -- Issue #3614: Corrected a typo in xmlrpc.client, leading to a NameError - "global name 'header' is not defined". - -- Issue #2834: update the regular expression library to match the unicode - standards of py3k. In other words, mixing bytes and unicode strings - (be it as pattern, search string or replacement string) raises a TypeError. - Moreover, the re.UNICODE flag is enabled automatically for unicode patterns, - and can be disabled by specifying a new re.ASCII flag; as for bytes - patterns, ASCII matching is the only option and trying to specify re.UNICODE - for such patterns raises a ValueError. - -- Issue #3300: make urllib.parse.[un]quote() default to UTF-8. - Code contributed by Matt Giuca. quote() now encodes the input - before quoting, unquote() decodes after unquoting. There are - new arguments to change the encoding and errors settings. - There are also new APIs to skip the encode/decode steps. - [un]quote_plus() are also affected. - -- Issue #2235: numbers.Number now blocks inheritance of the default id() - based hash because that hash mechanism is not correct for numeric types. - All concrete numeric types that inherit from Number (rather than just - registering with it) must explicitly provide a hash implementation in - order for their instances to be hashable. - -- Issue #2676: in the email package, content-type parsing was hanging on - pathological input because of quadratic or exponential behaviour of a - regular expression. - -- Issue #3476: binary buffered reading through the new "io" library is now - thread-safe. - -- Issue #1342811: Fix leak in Tkinter.Menu.delete. Commands associated to - menu entries were not deleted. - -- Remove the TarFileCompat class from tarfile.py. - -- Issue #2491: os.fdopen is now almost an alias for the built-in open(), and - accepts the same parameters. It just checks that its first argument is an - integer. - -- Issue #3394: zipfile.writestr sets external attributes when passed a - file name rather than a ZipInfo instance, so files are extracted with - mode 0600 rather than 000 under Unix. - -- Issue #2523: Fix quadratic behaviour when read()ing a binary file without - asking for a specific length. - -Extension Modules ------------------ - -- Bug #3542: Support Unicode strings in _msi module. - -What's new in Python 3.0b2? -=========================== - -*Release date: 17-Jul-2008* - -Core and Builtins ------------------ - -- Issue #3008: the float type has a new instance method 'float.hex' - and a new class method 'float.fromhex' to convert floating-point - numbers to and from hexadecimal strings, respectively. - -- Issue #3083: Add alternate (#) formatting for bin, oct, hex output - for str.format(). This adds the prefix 0b, 0o, or 0x, respectively. - -- Issue #3280: like chr(), the "%c" format now accepts unicode code points - beyond the Basic Multilingual Plane (above 0xffff) on all configurations. On - "narrow Unicode" builds, the result is a string of 2 code units, forming a - UTF-16 surrogate pair. - -- Issue #3282: str.isprintable() should return False for undefined - Unicode characters. - -- Issue #3236: Return small longs from PyLong_FromString. - -- Exception tracebacks now support exception chaining. - -Library -------- - -- Removed the sunaudio module. Use sunau instead. - -- Issue #3554: ctypes.string_at and ctypes.wstring_at did call Python - api functions without holding the GIL, which could lead to a fatal - error when they failed. - -- Issue #799428: Fix Tkinter.Misc._nametowidget to unwrap Tcl command objects. - -- Removed "ast" function aliases from the parser module. - -- Issue #3313: Fixed a crash when a failed dlopen() call does not set - a valid dlerror() message. - -- Issue #3258: Fixed a crash when a ctypes POINTER type to an - incomplete structure was created. - -- Issue #2683: Fix inconsistency in subprocess.Popen.communicate(): the - argument now must be a bytes object in any case. - -- Issue #3145: help("modules whatever") failed when trying to load the source - code of every single module of the standard library, including invalid files - used in the test suite. - -- The gettext library now consistently uses Unicode strings for message ids - and message strings, and ``ugettext()`` and the like don't exist anymore. - -- The traceback module has been expanded to handle chained exceptions. - -C API ------ - -- Issue #3247: the function Py_FindMethod was removed. Modern types should - use the tp_methods slot instead. - -Tools/Demos ------------ - -- The Mac/Demos directory has been removed. - -- All of the Mac scripts have been removed (including BuildApplet.py). - - -What's new in Python 3.0b1? -=========================== - -*Release date: 18-Jun-2008* - -Core and Builtins ------------------ - -- Issue #3211: warnings.warn_explicit() did not guard against its 'registry' - argument being anything other than a dict or None. Also fixed a bug in error - handling when 'message' and 'category' were both set to None, triggering a - bus error. - -- Issue #3100: Corrected a crash on deallocation of a subclassed weakref which - holds the last (strong) reference to its referent. - -- Issue #2630: implement PEP 3138. repr() now returns printable - Unicode characters unescaped, to get an ASCII-only representation - of an object use ascii(). - -- Issue #1342: On windows, Python could not start when installed in a - directory with non-ascii characters. - -- Implement PEP 3121: new module initialization and finalization API. - -- Removed the already-defunct ``-t`` option. - -- Issue #2957: Corrected a ValueError "recursion limit exceeded", when - unmarshalling many code objects, which happens when importing a - large .pyc file (~1000 functions). - -- Issue #2963: fix merging oversight that disabled method cache for - all types. - -- Issue #2964: fix a missing INCREF in instancemethod_descr_get. - -- Issue #2895: Don't crash when given bytes objects as keyword names. - -- Issue #2798: When parsing arguments with PyArg_ParseTuple, the "s" - code now allows any unicode string and returns a utf-8 encoded - buffer, just like the "s#" code already does. The "z" code was - corrected as well. - -- Issue #2863: generators now have a ``gen.__name__`` attribute that - equals ``gen.gi_code.co_name``, like ``func.__name___`` that equals - ``func.func_code.co_name``. The repr() of a generator now also - contains this name. - -- Issue #2831: enumerate() now has a ``start`` argument. - -- Issue #2801: fix bug in the float.is_integer method where a - ValueError was sometimes incorrectly raised. - -- The ``--with-toolbox-glue`` option (and the associated - pymactoolbox.h) have been removed. - -- Issue #2196: hasattr() now lets exceptions which do not inherit - Exception (KeyboardInterrupt, and SystemExit) propagate instead of - ignoring them. - -- #3021 Exception reraising sematics have been significantly improved. However, - f_exc_type, f_exc_value, and f_exc_traceback cannot be accessed from Python - code anymore. - -- Three of PyNumberMethods' members, nb_coerce, nb_hex, and nb_oct, have been - removed. - -Extension Modules ------------------ - -- Renamed ``_winreg`` module to ``winreg``. - -- Support os.O_ASYNC and fcntl.FASYNC if the constants exist on the - platform. - -- Support for Windows 9x has been removed from the winsound module. - -- Issue #2870: cmathmodule.c compile error. - -Library -------- - -- The methods ``is_in_tuple()``, ``is_vararg()``, and ``is_keywordarg()`` of - symtable.Symbol have been removed. - -- Patch #3133: http.server.CGIHTTPRequestHandler did not work on windows. - -- a new ``urllib`` package was created. It consists of code from - ``urllib``, ``urllib2``, ``urlparse``, and ``robotparser``. The old - modules have all been removed. The new package has five submodules: - ``urllib.parse``, ``urllib.request``, ``urllib.response``, - ``urllib.error``, and ``urllib.robotparser``. The - ``urllib.request.urlopen()`` function uses the url opener from - ``urllib2``. (Note that the unittests have not been renamed for the - beta, but they will be renamed in the future.) - -- rfc822 has been removed in favor of the email package. - -- mimetools has been removed in favor of the email package. - -- Patch #2849: Remove use of rfc822 module from standard library. - -- Added C optimized implementation of io.StringIO. - -- The ``pickle`` module is now automatically use an optimized C - implementation of Pickler and Unpickler when available. The - ``cPickle`` module is no longer needed. - -- Removed the ``htmllib`` and ``sgmllib`` modules. - -- The deprecated ``SmartCookie`` and ``SimpleCookie`` classes have - been removed from ``http.cookies``. - -- The ``commands`` module has been removed. Its getoutput() and - getstatusoutput() functions have been moved to the ``subprocess`` module. - -- The ``http`` package was created; it contains the old ``httplib`` - as ``http.client``, ``Cookie`` as ``http.cookies``, ``cookielib`` - as ``http.cookiejar``, and the content of the three ``HTTPServer`` - modules as ``http.server``. - -- The ``xmlrpc`` package was created; it contains the old - ``xmlrpclib`` module as ``xmlrpc.client`` and the content of - the old ``SimpleXMLRPCServer`` and ``DocXMLRPCServer`` modules - as ``xmlrpc.server``. - -- The ``dbm`` package was created, containing the old modules - ``anydbm`` and ``whichdb`` in its ``__init__.py``, and having - ``dbm.gnu`` (was ``gdbm``), ``dbm.bsd`` (was ``dbhash``), - ``dbm.ndbm`` (was ``dbm``) and ``dbm.dumb`` (was ``dumbdbm``) - as submodules. - -- The ``repr`` module has been renamed to ``reprlib``. - -- The ``statvfs`` module has been removed. - -- Issue #1713041: fix pprint's handling of maximum depth. - -- Issue #2250: Exceptions raised during evaluation of names in - rlcompleter's ``Completer.complete()`` method are now caught and - ignored. - -- Patch #2659: Added ``break_on_hyphens`` option to textwrap's - ``TextWrapper`` class. - -- Issue #2487: change the semantics of math.ldexp(x, n) when n is too - large to fit in a C long. ldexp(x, n) now returns a zero (with - suitable sign) if n is large and negative; previously, it raised - OverflowError. - -- The ``ConfigParser`` module has been renamed to ``configparser``. - -- Issue #2865: webbrowser.open() works again in a KDE environment. - -- The ``multifile`` module has been removed. - -- The ``SocketServer`` module has been renamed to ``socketserver``. - -- Fixed the ``__all__`` setting on ``collections`` to include - ``UserList`` and ``UserString``. - -- The sre module has been removed. - -- The Queue module has been renamed to queue. - -- The copy_reg module has been renamed to copyreg. - -- The mhlib module has been removed. - -- The ihooks module has been removed. - -- The fpformat module has been removed. - -- The dircache module has been removed. - -- The Canvas module has been removed. - -- The Decimal module gained the magic methods __round__, __ceil__, - __floor__ and __trunc__, to give support for round, math.ceil, - math.floor and math.trunc. - -- The user module has been removed. - -- The mutex module has been removed. - -- The imputil module has been removed. - -- os.path.walk has been removed in favor of os.walk. - -- pdb gained the "until" command. - -- The test.test_support module has been renamed to test.support. - -- The threading module API was renamed to be PEP 8 compliant. The - old names are still present, but will be removed in the near future. - -Tools/Demos ------------ - -- The bgen tool has been removed. - -Build ------ - - -What's New in Python 3.0a5? -=========================== - -*Release date: 08-May-2008* - -Core and Builtins ------------------ - -- Fixed misbehaviour of PyLong_FromSsize_t on systems where - sizeof(size_t) > sizeof(long). - -- Issue #2221: Corrected a SystemError "error return without exception - set", when the code executed by exec() raises an exception, and - sys.stdout.flush() also raises an error. - -- Bug #2565: The repr() of type objects now calls them 'class', not - 'type' - whether they are builtin types or not. - -- The command line processing was converted to pass Unicode strings - through as unmodified as possible; as a consequence, the C API - related to command line arguments was changed to use wchar_t. - -- All backslashes in raw strings are interpreted literally. This - means that '\u' and '\U' escapes are not treated specially. - -Extension Modules ------------------ - -Library -------- - -- ctypes objects now support the PEP3118 buffer interface. - -- Issue #2682: ctypes callback functions now longer contain a cyclic - reference to themselves. - -- Issue #2058: Remove the buf attribute and add __slots__ to the - TarInfo class in order to reduce tarfile's memory usage. - -- Bug #2606: Avoid calling .sort() on a dict_keys object. - -- The bundled libffi copy is now in sync with the recently released - libffi3.0.5 version, apart from some small changes to - Modules/_ctypes/libffi/configure.ac. - -Build ------ - -- Issue #1496032: On alpha, use -mieee when gcc is the compiler. - -- "make install" is now an alias for "make altinstall", to prevent - accidentally overwriting a Python 2.x installation. Use "make - fullinstall" to force Python 3.0 to be installed as "python". - -- Issue #2544: On HP-UX systems, use 'gcc -shared' for linking when - gcc is used as compiler. - - -What's New in Python 3.0a4? -=========================== - -*Release date: 02-Apr-2008* - -Core and Builtins ------------------ - -- Bug #2301: Don't try decoding the source code into the original - encoding for syntax errors. - -Extension Modules ------------------ - -- The dl module was removed, use the ctypes module instead. - -- Use wchar_t functions in _locale module. - -Library -------- - -- The class distutils.commands.build_py.build_py_2to3 can be used as a - build_py replacement to automatically run 2to3 on modules that are - going to be installed. - -- A new pickle protocol (protocol 3) is added with explicit support - for bytes. This is the default protocol. It intentionally cannot - be unpickled by Python 2.x. - -- When a pickle written by Python 2.x contains an (8-bit) str - instance, this is now decoded to a (Unicode) str instance. The - encoding used to do this defaults to ASCII, but can be overridden - via two new keyword arguments to the Unpickler class. Previously - this would create bytes instances, which is usually wrong: str - instances are often used to pickle attribute names etc., and text is - more common than binary data anyway. - -- Default to ASCII as the locale.getpreferredencoding, if the POSIX - system doesn't support CODESET and LANG isn't set or doesn't allow - deduction of an encoding. - -- Issue #1202: zlib.crc32 and zlib.adler32 now return an unsigned - value. - -- Issue #719888: Updated tokenize to use a bytes API. generate_tokens - has been renamed tokenize and now works with bytes rather than - strings. A new detect_encoding function has been added for - determining source file encoding according to PEP-0263. Token - sequences returned by tokenize always start with an ENCODING token - which specifies the encoding used to decode the file. This token is - used to encode the output of untokenize back to bytes. - - -What's New in Python 3.0a3? -=========================== - -*Release date: 29-Feb-2008* - -Core and Builtins ------------------ - -- Issue #2282: io.TextIOWrapper was not overriding seekable() from - io.IOBase. - -- Issue #2115: Important speedup in setting __slot__ attributes. Also - prevent a possible crash: an Abstract Base Class would try to access - a slot on a registered virtual subclass. - -- Fixed repr() and str() of complex numbers with infinity or nan as - real or imaginary part. - -- Clear all free list during a gc.collect() of the highest generation - in order to allow pymalloc to free more arenas. Python may give back - memory to the OS earlier. - -- Issue #2045: Fix an infinite recursion triggered when printing a - subclass of collections.defaultdict, if its default_factory is set - to a bound method. - -- Fixed a minor memory leak in dictobject.c. The content of the free - list was not freed on interpreter shutdown. - -- Limit free list of method and builtin function objects to 256 - entries each. - -- Patch #1953: Added ``sys._compact_freelists()`` and the C API - functions ``PyInt_CompactFreeList`` and ``PyFloat_CompactFreeList`` - to compact the internal free lists of pre-allocted ints and floats. - -- Bug #1983: Fixed return type of fork(), fork1() and forkpty() calls. - Python expected the return type int but the fork familie returns - pi_t. - -- Issue #1678380: Fix a bug that identifies 0j and -0j when they - appear in the same code unit. - -- Issue #2025: Added tuple.count() and tuple.index() methods to comply - with the collections.Sequence API. - -- Fixed multiple reinitialization of the Python interpreter. The small - int list in longobject.c has caused a seg fault during the third - finalization. - -- Issue #1973: bytes.fromhex('') raised SystemError. - -- Issue #1771: remove cmp parameter from sorted() and list.sort(). - -- Issue #1969: split and rsplit in bytearray are inconsistent. - -- map() no longer accepts None for the first argument. Use zip() - instead. - -- Issue #1769: Now int("- 1") is not allowed any more. - -- Object/longobject.c: long(float('nan')) raises an OverflowError - instead of returning 0. - -- Issue #1762972: __file__ points to the source file instead of the - pyc/pyo file if the py file exists. - -- Issue #1393: object_richcompare() returns NotImplemented instead of - False if the objects aren't equal, to give the other side a chance. - -- Issue #1692: Interpreter was not displaying location of SyntaxError. - -- Improve some exception messages when Windows fails to load an - extension module. Now we get for example '%1 is not a valid Win32 - application' instead of 'error code 193'. Also use Unicode strings - to deal with non-English locales. - -- Issue #1587: Added instancemethod wrapper for PyCFunctions. The - Python C API has gained a new type *PyInstanceMethod_Type* and the - functions *PyInstanceMethod_Check(o)*, *PyInstanceMethod_New(func)* - and *PyInstanceMethod_Function(im)*. - -- Constants gc.DEBUG_OBJECT and gc.DEBUG_INSTANCE have been removed - from the gc module; gc.DEBUG_COLLECTABLE or gc.DEBUG_UNCOLLECTABLE - are now enough to print the corresponding list of objects considered - by the garbage collector. - -- Issue #1573: Improper use of the keyword-only syntax makes the - parser crash. - -- Issue #1564: The set implementation should special-case PyUnicode - instead of PyString. - -- Patch #1031213: Decode source line in SyntaxErrors back to its - original source encoding. - -- inspect.getsource() includes the decorators again. - -- Bug #1713: posixpath.ismount() claims symlink to a mountpoint is a - mountpoint. - -- Fix utf-8-sig incremental decoder, which didn't recognise a BOM when - the first chunk fed to the decoder started with a BOM, but was - longer than 3 bytes. - -Extension Modules ------------------ - -- Code for itertools ifilter(), imap(), and izip() moved to bultins - and renamed to filter(), map(), and zip(). Also, renamed - izip_longest() to zip_longest() and ifilterfalse() to filterfalse(). - -- Issue #1762972: Readded the reload() function as imp.reload(). - -- Bug #2111: mmap segfaults when trying to write a block opened with - PROT_READ. - -- Issue #2063: correct order of utime and stime in os.times() result - on Windows. - -Library -------- - -- Weakref dictionaries now inherit from MutableMapping. - -- Created new UserDict class in collections module. This one inherits - from and complies with the MutableMapping ABC. Also, moved - UserString and UserList to the collections module. The - MutableUserString class was removed. - -- Removed UserDict.DictMixin. Replaced all its uses with - collections.MutableMapping. - -- Issue #1703: getpass() should flush after writing prompt. - -- Issue #1585: IDLE uses non-existent xrange() function. - -- Issue #1578: Problems in win_getpass. - -Build ------ - -- Renamed --enable-unicode configure flag to --with-wide-unicode, - since Unicode strings can't be disabled anymore. - -C API ------ - -- Issue #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, - Py_TYPE and Py_REFCNT. - -- New API PyImport_ImportModuleNoBlock(), works like - PyImport_ImportModule() but won't block on the import lock - (returning an error instead). - - -What's New in Python 3.0a2? -=========================== - -*Release date: 07-Dec-2007* - -(Note: this list is incomplete.) - -Core and Builtins ------------------ - -- str8 now has the same construction signature as bytes. - -- Comparisons between str and str8 now return False/True for ==/!=. - sqlite3 returns str8 when recreating on object from it's __conform__ - value. The struct module returns str8 for all string-related - formats. This was true before this change, but becomes more - apparent thanks to string comparisons always being False. - -- Replaced `PyFile_FromFile()` with `PyFile_FromFd(fd, name. mode, - buffer, encoding, newline)`. - -- Fixed `imp.find_module()` to obey the -*- coding: -*- header. - -- Changed `__file__` and `co_filename` to unicode. The path names are decoded - with `Py_FileSystemDefaultEncoding` and a new API method - `PyUnicode_DecodeFSDefault(char*)` was added. - -- io.open() and _fileio.FileIO have grown a new argument closefd. A - false value disables the closing of the file descriptor. - -- Added a new option -b to issues warnings (-bb for errors) about - certain operations between bytes/buffer and str like str(b'') and - comparison. - -- The standards streams sys.stdin, stdout and stderr may be None when - the when the C runtime library returns an invalid file descriptor - for the streams (fileno(stdin) < 0). For now this happens only for - Windows GUI apps and scripts started with `pythonw.exe`. - -- Added PCbuild9 directory for VS 2008. - -- Renamed structmember.h WRITE_RESTRICTED to PY_WRITE_RESTRICTED to - work around a name clash with VS 2008 on Windows. - -- Unbound methods are gone for good. ClassObject.method returns an - ordinary function object, instance.method still returns a bound - method object. The API of bound methods is cleaned up, too. The - im_class attribute is removed and im_func + im_self are renamed to - __func__ and __self__. The factory PyMethod_New takes only func and - instance as argument. - -- intobject.h is no longer included by Python.h. The remains were - moved to longobject.h. It still exists to define several aliases - from PyInt to PyLong functions. - -- Removed sys.maxint, use sys.maxsize instead. - -Extension Modules ------------------ - -- The `hotshot` profiler has been removed; use `cProfile` instead. - -Library -------- - -- When loading an external file using testfile(), the passed-in - encoding argument was being ignored if __loader__ is defined and - forcing the source to be UTF-8. - -- The methods `os.tmpnam()`, `os.tempnam()` and `os.tmpfile()` have - been removed in favor of the tempfile module. - -- Removed the 'new' module. - -- Removed all types from the 'types' module that are easily accessable - through builtins. - - -What's New in Python 3.0a1? -=========================== - -*Release date: 31-Aug-2007* - -Core and Builtins ------------------ - -- PEP 3131: Support non-ASCII identifiers. - -- PEP 3120: Change default encoding to UTF-8. - -- PEP 3123: Use proper C inheritance for PyObject. - -- Removed the __oct__ and __hex__ special methods and added a bin() - builtin function. - -- PEP 3127: octal literals now start with "0o". Old-style octal - literals are invalid. There are binary literals with a prefix of - "0b". This also affects int(x, 0). - -- None, True, False are now keywords. - -- PEP 3119: isinstance() and issubclass() can be overridden. - -- Remove BaseException.message. - -- Remove tuple parameter unpacking (PEP 3113). - -- Remove the f_restricted attribute from frames. This naturally leads - to the removal of PyEval_GetRestricted() and PyFrame_IsRestricted(). - -- PEP 3132 was accepted. That means that you can do ``a, *b = - range(5)`` to assign 0 to a and [1, 2, 3, 4] to b. - -- range() now returns an iterator rather than a list. Floats are not - allowed. xrange() is no longer defined. - -- Patch #1660500: hide iteration variable in list comps, add set comps - and use common code to handle compilation of iterative expressions. - -- By default, != returns the opposite of ==, unless the latter returns - NotImplemented. - -- Patch #1680961: sys.exitfunc has been removed and replaced with a - private C-level API. - -- PEP 3115: new metaclasses: the metaclass is now specified as a - keyword arg in the class statement, which can now use the full - syntax of a parameter list. Also, the metaclass can implement a - __prepare__ function which will be called to create the dictionary - for the new class namespace. - -- The long-deprecated argument "pend" of PyFloat_FromString() has been - removed. - -- The dir() function has been extended to call the __dir__() method on - its argument, if it exists. If not, it will work like before. This - allows customizing the output of dir() in the presence of a - __getattr__(). - -- Removed support for __members__ and __methods__. - -- Removed indexing/slicing on BaseException. - -- input() became raw_input(): the name input() now implements the - functionality formerly known as raw_input(); the name raw_input() is - no longer defined. - -- Classes listed in an 'except' clause must inherit from - BaseException. - -- PEP 3106: dict.iterkeys(), .iteritems(), .itervalues() are now gone; - and .keys(), .items(), .values() return dict views, which behave - like sets. - -- PEP 3105: print is now a function. Also (not in the PEP) the - 'softspace' attribute of files is now gone (since print() doesn't - use it). A side effect of this change is that you can get - incomplete output lines in interactive sessions: - - >>> print(42, end="") - 42>>> - - We may be able to fix this after the I/O library rewrite. - -- PEP 3102: keyword-only arguments. - -- Int/Long unification is complete. The 'long' built-in type and - literals with trailing 'L' or 'l' have been removed. Performance - may be sub-optimal (haven't really benchmarked). - -- 'except E, V' must now be spelled as 'except E as V' and deletes V - at the end of the except clause; V must be a simple name. - -- Added function annotations per PEP 3107. - -- Added nonlocal declaration from PEP 3104: - - >>> def f(x): - ... def inc(): - ... nonlocal x - ... x += 1 - ... return x - ... return inc - ... - >>> inc = f(0) - >>> inc() - 1 - >>> inc() - 2 - -- Moved intern() to sys.intern(). - -- exec is now a function. - -- Renamed nb_nonzero to nb_bool and __nonzero__ to __bool__. - -- Classic classes are a thing of the past. All classes are new style. - -- Exceptions *must* derive from BaseException. - -- Integer division always returns a float. The -Q option is no more. - All the following are gone: - - * PyNumber_Divide and PyNumber_InPlaceDivide - * __div__, __rdiv__, and __idiv__ - * nb_divide, nb_inplace_divide - * operator.div, operator.idiv, operator.__div__, operator.__idiv__ - (Only __truediv__ and __floordiv__ remain, not sure how to handle - them if we want to re-use __div__ and friends. If we do, it will - make it harder to write code for both 2.x and 3.x.) - -- 'as' and 'with' are keywords. - -- Absolute import is the default behavior for 'import foo' etc. - -- Removed support for syntax: backticks (ie, `x`), <>. - -- Removed these Python builtins: apply(), callable(), coerce(), - execfile(), file(), reduce(), reload(). - -- Removed these Python methods: {}.has_key. - -- Removed these opcodes: BINARY_DIVIDE, INPLACE_DIVIDE, UNARY_CONVERT. - -- Remove C API support for restricted execution. - -- zip(), map() and filter() now return iterators, behaving like their - itertools counterparts. This also affect map()'s behavior on - sequences of unequal length -- it now stops after the shortest one - is exhausted. - -- Additions: set literals, set comprehensions, ellipsis literal. - -- Added class decorators per PEP 3129. - - -Extension Modules ------------------ - -- Removed the imageop module. Obsolete long with its unit tests - becoming useless from the removal of rgbimg and imgfile. - -- Removed these attributes from the operator module: div, idiv, - __div__, __idiv__, isCallable, sequenceIncludes. - -- Removed these attributes from the sys module: exc_clear(), exc_type, - exc_value, exc_traceback. - - -Library -------- - -- Removed the compiler package. Use of the _ast module and (an - eventual) AST -> bytecode mechanism. - -- Removed these modules: audiodev, Bastion, bsddb185, exceptions, - linuxaudiodev, md5, MimeWriter, mimify, popen2, rexec, sets, sha, - stringold, strop, sunaudiodev, timing, xmllib. - -- Moved the toaiff module to Tools/Demos. - -- Removed obsolete IRIX modules: al/AL, cd/CD, cddb, cdplayer, cl/CL, - DEVICE, ERRNO, FILE, fl/FL, flp, fm, GET, gl/GL, GLWS, IN, imgfile, - IOCTL, jpeg, panel, panelparser, readcd, sgi, sv/SV, torgb, WAIT. - -- Removed obsolete functions: commands.getstatus(), os.popen*(). - -- Removed functions in the string module that are also string methods; - Remove string.{letters, lowercase, uppercase}. - -- Removed support for long obsolete platforms: plat-aix3, plat-irix5. - -- Removed xmlrpclib.SlowParser. It was based on xmllib. - -- Patch #1680961: atexit has been reimplemented in C. - -- Add new codecs for UTF-32, UTF-32-LE and UTF-32-BE. - -Build ------ - -C API ------ - -- Removed these Python slots: __coerce__, __div__, __idiv__, __rdiv__. - -- Removed these C APIs: PyNumber_Coerce(), PyNumber_CoerceEx(), - PyMember_Get, PyMember_Set. - -- Removed these C slots/fields: nb_divide, nb_inplace_divide. - -- Removed these macros: staticforward, statichere, PyArg_GetInt, - PyArg_NoArgs, _PyObject_Del. - -- Removed these typedefs: intargfunc, intintargfunc, intobjargproc, - intintobjargproc, getreadbufferproc, getwritebufferproc, - getsegcountproc, getcharbufferproc, memberlist. - -Tests ------ - -- Removed test.testall as test.regrtest replaces it. - -Documentation -------------- - -Mac ---- - -- The cfmfile module was removed. - -Platforms ---------- - -- Support for BeOS and AtheOS was removed (according to PEP 11). - -- Support for RiscOS, Irix, Tru64 was removed (alledgedly). - -Tools/Demos ------------ - **(For information about older versions, consult the HISTORY file.)** diff --git a/README b/README index cfc24b0..6acf145 100644 --- a/README +++ b/README @@ -1,17 +1,16 @@ -This is Python version 3.0 release candidate 3 -============================================== +This is Python version 3.1 alpha 0 +================================== For notes specific to this release, see RELNOTES in this directory. Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Python Software Foundation. All rights reserved. -Python 3000 (a.k.a. "Py3k", and released as Python 3.0) is a new -version of the language, which is incompatible with the 2.x line of -releases. The language is mostly the same, but many details, -especially how built-in objects like dictionaries and strings work, -have changed considerably, and a lot of deprecated features have -finally been removed. +Python 3.x is a new version of the language, which is incompatible with the +2.x line of releases. The language is mostly the same, but many details, +especially how built-in objects like dictionaries and strings work, have +changed considerably, and a lot of deprecated features have finally been +removed. This is an ongoing project; the cleanup isn't expected to be complete until some time in 2008. In particular there are plans to reorganize @@ -21,22 +20,15 @@ the standard library namespace. Release Schedule ---------------- -The release plan is to have a series of alpha releases in 2007 and 2008, -beta releases in 2008, and a final release in October 2008. The alpha -releases are primarily aimed at developers who want a sneak peek at the -new langauge, especially those folks who plan to port their code to -Python 3000. The hope is that by the time of the final release, many -3rd party packages will already be available in a 3.0-compatible form. - -See PEP 361 for release details: http://www.python.org/dev/peps/pep-0361/ +See PEP XXX for release details: http://www.python.org/dev/peps/pep-XXX/ Documentation ------------- -Documentation for Python 3000 is online, updated twice a day: +Documentation for Python 3.1 is online, updated twice a day: - http://docs.python.org/dev/3.0/ + http://docs.python.org/dev/3.1/ All documentation is also available online at the Python web site (http://docs.python.org/, see below). It is available online for @@ -48,9 +40,9 @@ translators, and people with special formatting requirements. This is a work in progress; please help improve it! -The design documents for Python 3000 are also online. While the -reference documentation is being updated, the PEPs are often the best -source of information about new features. Start by reading PEP 3000: +The design documents for Python 3 are also online. While the reference +documentation is being updated, the PEPs are often the best source of +information about new features. Start by reading PEP 3000: http://python.org/dev/peps/pep-3000/ @@ -58,15 +50,15 @@ source of information about new features. Start by reading PEP 3000: What's New ---------- -For an overview of what's new in Python 3000, see Guido van Rossum's -blog at artima.com: +For an overview of what's new in Python 3, see Guido van Rossum's blog at +artima.com: http://www.artima.com/weblogs/index.jsp?blogger=guido We try to eventually have a comprehensive overview of the changes in -the "What's New in Python 3.0" document, found at +the "What's New in Python 3.1" document, found at - http://docs.python.org/dev/3.0/whatsnew/3.0 + http://docs.python.org/dev/3.1/whatsnew/3.1 Please help write it! @@ -88,13 +80,12 @@ current PEPs, as well as guidelines for submitting a new PEP, are listed at http://www.python.org/dev/peps/. -Converting From Python 2.x to 3.0 +Converting From Python 2.x to 3.x --------------------------------- -Python 2.6 (to be released concurrent with Python 3.0) will contain features -to help locating code that needs to be changed, such as optional warnings when -deprecated features are used, and backported versions of certain key Python -3000 features. +Python starting with 2.6 will contain features to help locating code that +needs to be changed, such as optional warnings when deprecated features are +used, and backported versions of certain key Python 3.x features. Installing multiple versions diff --git a/RELNOTES b/RELNOTES index 15e4e42..48be1f1 100644 --- a/RELNOTES +++ b/RELNOTES @@ -1,29 +1,29 @@ -Python 3.0 Release Notes -======================== +Python 3 Release Notes +====================== -These release notes describe unfinished work, or important notes that Python -3.0 adopters need to be aware of. This is not a complete list of changes for -Python 3.0 -- for that, see Misc/NEWS. +These release notes describe unfinished work, or important notes that Python 3 +adopters need to be aware of. This is not a complete list of changes for +Python 3 -- for that, see Misc/NEWS. Please report bugs to http://bugs.python.org/ -The list of all known open issues for Python 3.0 can be found here: +The list of all known open issues for Python 3 can be found here: http://bugs.python.org/issue?%40search_text=&title=&%40columns=title&id=&%40columns=id&creation=&creator=&activity=&%40columns=activity&%40sort=activity&actor=&nosy=&type=&components=&versions=12&dependencies=&assignee=&keywords=&priority=&%40group=priority&status=1&%40columns=status&resolution=&%40pagesize=50&%40startwith=0&%40queryname=&%40old-queryname=&%40action=search -Additional notes for Python 3.0 final -------------------------------------- +Additional notes for Python 3 +----------------------------- * The bsddb3 package has been removed from the standard library. It is available as a separate distutils based package from the Python Cheeseshop. - If you need bsddb3 support in Python 3.0, you can find it here: + If you need bsddb3 support in Python 3, you can find it here: http://pypi.python.org/pypi/bsddb3 * The email package needs quite a bit of work to make it consistent with respect to bytes and strings. There have been discussions on - email-sig@python.org about where to go with the email package for 3.0, but - this was not resolved in time for 3.0 final. With enough care though, the - email package in Python 3.0 should be about as usable as it is with Python + email-sig@python.org about where to go with the email package for Python 3, + but this was not resolved in time for 3.0 final. With enough care though, + the email package in Python 3 should be about as usable as it is with Python 2. -- cgit v0.12