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Refer consistently to issues, rewrap to 70 chars.
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Misc/NEWS
471
Misc/NEWS
@ -12,73 +12,78 @@ What's new in Python 3.0b1?
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Core and Builtins
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Core and Builtins
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-----------------
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-----------------
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- Issue #2963: fix merging oversight that disabled method cache for all types.
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- Issue #2963: fix merging oversight that disabled method cache for
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all types.
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- Issue #2964: fix a missing INCREF in instancemethod_descr_get.
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- Issue #2964: fix a missing INCREF in instancemethod_descr_get.
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- Issue 2895: Don't crash when given bytes objects as keyword names.
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- Issue #2895: Don't crash when given bytes objects as keyword names.
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- Issue 2798: When parsing arguments with PyArg_ParseTuple, the "s" code now
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- Issue #2798: When parsing arguments with PyArg_ParseTuple, the "s"
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allows any unicode string and returns a utf-8 encoded buffer, just like the
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code now allows any unicode string and returns a utf-8 encoded
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"s#" code already does. The "z" code was corrected as well.
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buffer, just like the "s#" code already does. The "z" code was
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corrected as well.
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- Issue 2801: fix bug in the float.is_integer method where a ValueError
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- Issue #2863: generators now have a ``gen.__name__`` attribute that
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equals ``gen.gi_code.co_name``, like ``func.__name___`` that equals
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- Issue #2863: generators now have a ``gen.__name__`` attribute that equals
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``func.func_code.co_name``. The repr() of a generator now also
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``gen.gi_code.co_name``, like ``func.__name___`` that equals
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contains this name.
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``func.func_code.co_name``. The repr() of a generator now also contains
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this name.
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- Issue #2831: enumerate() now has a ``start`` argument.
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- Issue #2831: enumerate() now has a ``start`` argument.
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- Issue #2801: fix bug in the float.is_integer method where a ValueError
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- Issue #2801: fix bug in the float.is_integer method where a
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was sometimes incorrectly raised.
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ValueError was sometimes incorrectly raised.
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- The --with-toolbox-glue option (and the associated pymactoolbox.h) have been
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- The ``--with-toolbox-glue`` option (and the associated
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removed.
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pymactoolbox.h) have been removed.
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- Issue #2196: hasattr now lets exceptions which do not inherit Exception
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- Issue #2196: hasattr() now lets exceptions which do not inherit
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(KeyboardInterrupt, and SystemExit) propagate instead of ignoring them
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Exception (KeyboardInterrupt, and SystemExit) propagate instead of
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ignoring them.
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Extension Modules
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Extension Modules
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-----------------
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-----------------
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- Renamed ``_winreg`` module to ``winreg``.
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- Renamed ``_winreg`` module to ``winreg``.
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- Support os.O_ASYNC and fcntl.FASYNC if the constants exist on the platform.
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- Support os.O_ASYNC and fcntl.FASYNC if the constants exist on the
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platform.
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- Support for Windows 9x has been removed from the winsound module.
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- Support for Windows 9x has been removed from the winsound module.
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- Fixed #2870: cmathmodule.c compile error.
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- Issue #2870: cmathmodule.c compile error.
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Library
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Library
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-------
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-------
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- The repr module has been renamed to reprlib.
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- The ``repr`` module has been renamed to ``reprlib``.
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- The statvfs module has been removed.
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- The ``statvfs`` module has been removed.
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- #1713041: fix pprint's handling of maximum depth.
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- Issue #1713041: fix pprint's handling of maximum depth.
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- #2250: Exceptions raised during evaluation of names in rlcompleter's
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- Issue #2250: Exceptions raised during evaluation of names in
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``Completer.complete()`` method are now caught and ignored.
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rlcompleter's ``Completer.complete()`` method are now caught and
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ignored.
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- #2659: Added ``break_on_hyphens`` option to textwrap TextWrapper class.
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- Patch #2659: Added ``break_on_hyphens`` option to textwrap's
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``TextWrapper`` class.
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- Issue #2487: change the semantics of math.ldexp(x, n) when n is too
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- Issue #2487: change the semantics of math.ldexp(x, n) when n is too
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large to fit in a C long. ldexp(x, n) now returns a zero (with
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large to fit in a C long. ldexp(x, n) now returns a zero (with
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suitable sign) if n is large and negative; previously, it raised
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suitable sign) if n is large and negative; previously, it raised
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OverflowError.
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OverflowError.
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- The ConfigParser module has been renamed to configparser.
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- The ``ConfigParser`` module has been renamed to ``configparser``.
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- Issue 2865: webbrowser.open() works again in a KDE environment.
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- Issue #2865: webbrowser.open() works again in a KDE environment.
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- The multifile module has been removed.
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- The ``multifile`` module has been removed.
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- The SocketServer module has been renamed to socketserver.
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- The ``SocketServer`` module has been renamed to ``socketserver``.
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- Fix the __all__ setting on 'collections' to include UserList and UserString.
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- Fixed the ``__all__`` setting on ``collections`` to include
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``UserList`` and ``UserString``.
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- The sre module has been removed.
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- The sre module has been removed.
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@ -106,11 +111,11 @@ Library
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- The imputil module has been removed.
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- The imputil module has been removed.
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- os.path.walk has been removed in favor of os.walk
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- os.path.walk has been removed in favor of os.walk.
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- pdb gained the "until" command.
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- pdb gained the "until" command.
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- test.test_support has been renamed test.support
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- The test.test_support module has been renamed to test.support.
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Build
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Build
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-----
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-----
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@ -124,22 +129,22 @@ What's New in Python 3.0a5?
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Core and Builtins
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Core and Builtins
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-----------------
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-----------------
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- Fix misbehaviour of PyLong_FromSsize_t on systems where sizeof(size_t) >
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- Fixed misbehaviour of PyLong_FromSsize_t on systems where
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sizeof(long).
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sizeof(size_t) > sizeof(long).
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- Issue #2221: Corrected a SystemError "error return without exception set",
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- Issue #2221: Corrected a SystemError "error return without exception
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when the code executed by exec() raises an exception, and sys.stdout.flush()
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set", when the code executed by exec() raises an exception, and
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also raises an error.
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sys.stdout.flush() also raises an error.
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- Bug #2565: The repr() of type objects now calls them 'class',
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- Bug #2565: The repr() of type objects now calls them 'class', not
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not 'type' - whether they are builtin types or not.
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'type' - whether they are builtin types or not.
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- The command line processing was converted to pass Unicode strings
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- The command line processing was converted to pass Unicode strings
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through as unmodified as possible; as a consequence, the C API
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through as unmodified as possible; as a consequence, the C API
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related to command line arguments was changed to use wchar_t.
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related to command line arguments was changed to use wchar_t.
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- All backslashes in raw strings are interpreted literally. This means that
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- All backslashes in raw strings are interpreted literally. This
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'\u' and '\U' escapes are not treated specially.
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means that '\u' and '\U' escapes are not treated specially.
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Extension Modules
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Extension Modules
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-----------------
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-----------------
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@ -147,13 +152,13 @@ Extension Modules
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Library
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Library
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-------
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-------
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- ctypes objects now support the PEP3118 buffer interface
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- ctypes objects now support the PEP3118 buffer interface.
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- Issue #2682: ctypes callback functions now longer contain a cyclic
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- Issue #2682: ctypes callback functions now longer contain a cyclic
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reference to themselves.
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reference to themselves.
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- Issue #2058: Remove the buf attribute and add __slots__ to the TarInfo
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- Issue #2058: Remove the buf attribute and add __slots__ to the
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class in order to reduce tarfile's memory usage.
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TarInfo class in order to reduce tarfile's memory usage.
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- Bug #2606: Avoid calling .sort() on a dict_keys object.
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- Bug #2606: Avoid calling .sort() on a dict_keys object.
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@ -167,13 +172,13 @@ Build
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- Issue #1496032: On alpha, use -mieee when gcc is the compiler.
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- Issue #1496032: On alpha, use -mieee when gcc is the compiler.
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- "make install" is now an alias for "make altinstall", to prevent
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- "make install" is now an alias for "make altinstall", to prevent
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accidentally overwriting a Python 2.x installation.
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accidentally overwriting a Python 2.x installation. Use "make
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Use "make fullinstall" to force Python 3.0 to be installed as
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fullinstall" to force Python 3.0 to be installed as "python".
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"python".
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- Issue #2544: On HP-UX systems, use 'gcc -shared' for linking when
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- Issue #2544: On HP-UX systems, use 'gcc -shared' for linking when
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gcc is used as compiler.
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gcc is used as compiler.
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What's New in Python 3.0a4?
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What's New in Python 3.0a4?
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===========================
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===========================
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@ -195,9 +200,9 @@ Extension Modules
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Library
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Library
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-------
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-------
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|
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- The class distutils.commands.build_py.build_py_2to3 can be used
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- The class distutils.commands.build_py.build_py_2to3 can be used as a
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as a build_py replacement to automatically run 2to3 on modules
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build_py replacement to automatically run 2to3 on modules that are
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that are going to be installed.
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going to be installed.
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- A new pickle protocol (protocol 3) is added with explicit support
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- A new pickle protocol (protocol 3) is added with explicit support
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for bytes. This is the default protocol. It intentionally cannot
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for bytes. This is the default protocol. It intentionally cannot
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@ -212,17 +217,20 @@ Library
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more common than binary data anyway.
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more common than binary data anyway.
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- Default to ASCII as the locale.getpreferredencoding, if the POSIX
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- Default to ASCII as the locale.getpreferredencoding, if the POSIX
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system doesn't support CODESET and LANG isn't set or doesn't
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system doesn't support CODESET and LANG isn't set or doesn't allow
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allow deduction of an encoding.
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deduction of an encoding.
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- Issue #1202: zlib.crc32 and zlib.adler32 now return an unsigned value.
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- Issue #1202: zlib.crc32 and zlib.adler32 now return an unsigned
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value.
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- Issue #719888: Updated tokenize to use a bytes API. generate_tokens
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has been renamed tokenize and now works with bytes rather than
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strings. A new detect_encoding function has been added for
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determining source file encoding according to PEP-0263. Token
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sequences returned by tokenize always start with an ENCODING token
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which specifies the encoding used to decode the file. This token is
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used to encode the output of untokenize back to bytes.
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- Issue #719888: Updated tokenize to use a bytes API. generate_tokens has been
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renamed tokenize and now works with bytes rather than strings. A new
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detect_encoding function has been added for determining source file encoding
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according to PEP-0263. Token sequences returned by tokenize always start
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with an ENCODING token which specifies the encoding used to decode the file.
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This token is used to encode the output of untokenize back to bytes.
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What's New in Python 3.0a3?
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What's New in Python 3.0a3?
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===========================
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===========================
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@ -232,84 +240,90 @@ What's New in Python 3.0a3?
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Core and Builtins
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Core and Builtins
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-----------------
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-----------------
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- Issue #2282: io.TextIOWrapper was not overriding seekable() from io.IOBase.
|
- Issue #2282: io.TextIOWrapper was not overriding seekable() from
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|
io.IOBase.
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- Issue #2115: Important speedup in setting __slot__ attributes. Also
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- Issue #2115: Important speedup in setting __slot__ attributes. Also
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prevent a possible crash: an Abstract Base Class would try to access a slot
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prevent a possible crash: an Abstract Base Class would try to access
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on a registered virtual subclass.
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a slot on a registered virtual subclass.
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- Fixed repr() and str() of complex numbers with infinity or nan as real or
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- Fixed repr() and str() of complex numbers with infinity or nan as
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imaginary part.
|
real or imaginary part.
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|
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- Clear all free list during a gc.collect() of the highest generation in order
|
- Clear all free list during a gc.collect() of the highest generation
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to allow pymalloc to free more arenas. Python may give back memory to the
|
in order to allow pymalloc to free more arenas. Python may give back
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OS earlier.
|
memory to the OS earlier.
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|
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- Issue #2045: Fix an infinite recursion triggered when printing a subclass of
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- Issue #2045: Fix an infinite recursion triggered when printing a
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collections.defaultdict, if its default_factory is set to a bound method.
|
subclass of collections.defaultdict, if its default_factory is set
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to a bound method.
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- Fixed a minor memory leak in dictobject.c. The content of the free
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- Fixed a minor memory leak in dictobject.c. The content of the free
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list was not freed on interpreter shutdown.
|
list was not freed on interpreter shutdown.
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- Limit free list of method and builtin function objects to 256 entries
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- Limit free list of method and builtin function objects to 256
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each.
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entries each.
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- Patch #1953: Added ``sys._compact_freelists()`` and the C API functions
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- Patch #1953: Added ``sys._compact_freelists()`` and the C API
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``PyInt_CompactFreeList`` and ``PyFloat_CompactFreeList``
|
functions ``PyInt_CompactFreeList`` and ``PyFloat_CompactFreeList``
|
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to compact the internal free lists of pre-allocted ints and floats.
|
to compact the internal free lists of pre-allocted ints and floats.
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|
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- Bug #1983: Fixed return type of fork(), fork1() and forkpty() calls.
|
- Bug #1983: Fixed return type of fork(), fork1() and forkpty() calls.
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Python expected the return type int but the fork familie returns pi_t.
|
Python expected the return type int but the fork familie returns
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|
pi_t.
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- Issue #1678380: Fix a bug that identifies 0j and -0j when they appear
|
- Issue #1678380: Fix a bug that identifies 0j and -0j when they
|
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in the same code unit.
|
appear in the same code unit.
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|
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- Issue #2025 : Add tuple.count() and tuple.index() methods to comply with
|
- Issue #2025: Added tuple.count() and tuple.index() methods to comply
|
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the collections.Sequence API.
|
with the collections.Sequence API.
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|
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- Fixed multiple reinitialization of the Python interpreter. The small int
|
- Fixed multiple reinitialization of the Python interpreter. The small
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list in longobject.c has caused a seg fault during the third finalization.
|
int list in longobject.c has caused a seg fault during the third
|
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|
finalization.
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|
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- Issue #1973: bytes.fromhex('') raises SystemError
|
- Issue #1973: bytes.fromhex('') raised SystemError.
|
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|
|
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- Issue #1771: remove cmp parameter from sorted() and list.sort()
|
- Issue #1771: remove cmp parameter from sorted() and list.sort().
|
||||||
|
|
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- Issue #1969: split and rsplit in bytearray are inconsistent
|
- Issue #1969: split and rsplit in bytearray are inconsistent.
|
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|
|
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- map() and no longer accepts None for the first argument.
|
- map() no longer accepts None for the first argument. Use zip()
|
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Use zip() instead.
|
instead.
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|
|
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- Issue #1769: Now int("- 1") is not allowed any more.
|
- Issue #1769: Now int("- 1") is not allowed any more.
|
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|
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- Object/longobject.c: long(float('nan')) raises an OverflowError instead
|
- Object/longobject.c: long(float('nan')) raises an OverflowError
|
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of returning 0.
|
instead of returning 0.
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|
|
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- Issue #1762972: __file__ points to the source file instead of the pyc/pyo
|
- Issue #1762972: __file__ points to the source file instead of the
|
||||||
file if the py file exists.
|
pyc/pyo file if the py file exists.
|
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|
|
||||||
- Issue #1393: object_richcompare() returns NotImplemented instead of
|
- Issue #1393: object_richcompare() returns NotImplemented instead of
|
||||||
False if the objects aren't equal, to give the other side a chance.
|
False if the objects aren't equal, to give the other side a chance.
|
||||||
|
|
||||||
- Issue #1692: Interpreter was not displaying location of SyntaxError.
|
- Issue #1692: Interpreter was not displaying location of SyntaxError.
|
||||||
|
|
||||||
- Improve some exception messages when Windows fails to load an extension
|
- Improve some exception messages when Windows fails to load an
|
||||||
module. Now we get for example '%1 is not a valid Win32 application' instead
|
extension module. Now we get for example '%1 is not a valid Win32
|
||||||
of 'error code 193'. Also use Unicode strings to deal with non-English
|
application' instead of 'error code 193'. Also use Unicode strings
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locales.
|
to deal with non-English locales.
|
||||||
|
|
||||||
- Issue #1587: Added instancemethod wrapper for PyCFunctions. The Python C API
|
- Issue #1587: Added instancemethod wrapper for PyCFunctions. The
|
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has gained a new type *PyInstanceMethod_Type* and the functions
|
Python C API has gained a new type *PyInstanceMethod_Type* and the
|
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*PyInstanceMethod_Check(o)*, *PyInstanceMethod_New(func)* and
|
functions *PyInstanceMethod_Check(o)*, *PyInstanceMethod_New(func)*
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*PyInstanceMethod_Function(im)*.
|
and *PyInstanceMethod_Function(im)*.
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|
|
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- Constants gc.DEBUG_OBJECT and gc.DEBUG_INSTANCE have been removed from the
|
- Constants gc.DEBUG_OBJECT and gc.DEBUG_INSTANCE have been removed
|
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gc module; gc.DEBUG_COLLECTABLE or gc.DEBUG_UNCOLLECTABLE are now enough to
|
from the gc module; gc.DEBUG_COLLECTABLE or gc.DEBUG_UNCOLLECTABLE
|
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print the corresponding list of objects considered by the garbage collector.
|
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 #1573: Improper use of the keyword-only syntax makes the
|
||||||
|
parser crash.
|
||||||
|
|
||||||
- Issue #1564: The set implementation should special-case PyUnicode instead
|
- Issue #1564: The set implementation should special-case PyUnicode
|
||||||
of PyString.
|
instead of PyString.
|
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|
|
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- Patch #1031213: Decode source line in SyntaxErrors back to its
|
- Patch #1031213: Decode source line in SyntaxErrors back to its
|
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original source encoding.
|
original source encoding.
|
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@ -319,34 +333,34 @@ Core and Builtins
|
|||||||
- Bug #1713: posixpath.ismount() claims symlink to a mountpoint is a
|
- Bug #1713: posixpath.ismount() claims symlink to a mountpoint is a
|
||||||
mountpoint.
|
mountpoint.
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|
|
||||||
- Fix utf-8-sig incremental decoder, which didn't recognise a BOM when the
|
- Fix utf-8-sig incremental decoder, which didn't recognise a BOM when
|
||||||
first chunk fed to the decoder started with a BOM, but was longer than 3
|
the first chunk fed to the decoder started with a BOM, but was
|
||||||
bytes.
|
longer than 3 bytes.
|
||||||
|
|
||||||
|
|
||||||
Extension Modules
|
Extension Modules
|
||||||
-----------------
|
-----------------
|
||||||
|
|
||||||
- Code for itertools ifilter(), imap(), and izip() moved to bultins and
|
- Code for itertools ifilter(), imap(), and izip() moved to bultins
|
||||||
renamed to filter(), map(), and zip(). Also, renamed izip_longest()
|
and renamed to filter(), map(), and zip(). Also, renamed
|
||||||
to zip_longest() and ifilterfalse() to filterfalse().
|
izip_longest() to zip_longest() and ifilterfalse() to filterfalse().
|
||||||
|
|
||||||
- Issue #1762972: Readded the reload() function as imp.reload()
|
- Issue #1762972: Readded the reload() function as imp.reload().
|
||||||
|
|
||||||
- Bug #2111: mmap segfaults when trying to write a block opened with PROT_READ
|
- Bug #2111: mmap segfaults when trying to write a block opened with
|
||||||
|
PROT_READ.
|
||||||
- #2063: correct order of utime and stime in os.times() result on Windows.
|
|
||||||
|
|
||||||
|
- Issue #2063: correct order of utime and stime in os.times() result
|
||||||
|
on Windows.
|
||||||
|
|
||||||
Library
|
Library
|
||||||
-------
|
-------
|
||||||
|
|
||||||
- Weakref dictionaries now inherit from MutableMapping.
|
- Weakref dictionaries now inherit from MutableMapping.
|
||||||
XXX their API still needs to be modernized (i.e. eliminate the iter methods).
|
|
||||||
|
|
||||||
- Created new UserDict class in collections module. This one inherits from and
|
- Created new UserDict class in collections module. This one inherits
|
||||||
complies with the MutableMapping ABC. Also, moved UserString and UserList
|
from and complies with the MutableMapping ABC. Also, moved
|
||||||
to the collections module. The MutableUserString class was removed.
|
UserString and UserList to the collections module. The
|
||||||
|
MutableUserString class was removed.
|
||||||
|
|
||||||
- Removed UserDict.DictMixin. Replaced all its uses with
|
- Removed UserDict.DictMixin. Replaced all its uses with
|
||||||
collections.MutableMapping.
|
collections.MutableMapping.
|
||||||
@ -360,9 +374,8 @@ Library
|
|||||||
Build
|
Build
|
||||||
-----
|
-----
|
||||||
|
|
||||||
- Renamed --enable-unicode configure flag to --with-wide-unicode, since
|
- Renamed --enable-unicode configure flag to --with-wide-unicode,
|
||||||
Unicode strings can't be disabled anymore.
|
since Unicode strings can't be disabled anymore.
|
||||||
|
|
||||||
|
|
||||||
C API
|
C API
|
||||||
-----
|
-----
|
||||||
@ -370,8 +383,9 @@ C API
|
|||||||
- Issue #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE,
|
- Issue #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE,
|
||||||
Py_TYPE and Py_REFCNT.
|
Py_TYPE and Py_REFCNT.
|
||||||
|
|
||||||
- New API PyImport_ImportModuleNoBlock(), works like PyImport_ImportModule()
|
- New API PyImport_ImportModuleNoBlock(), works like
|
||||||
but won't block on the import lock (returning an error instead).
|
PyImport_ImportModule() but won't block on the import lock
|
||||||
|
(returning an error instead).
|
||||||
|
|
||||||
|
|
||||||
What's New in Python 3.0a2?
|
What's New in Python 3.0a2?
|
||||||
@ -386,14 +400,14 @@ Core and Builtins
|
|||||||
|
|
||||||
- str8 now has the same construction signature as bytes.
|
- str8 now has the same construction signature as bytes.
|
||||||
|
|
||||||
- Comparisons between str and str8 now return False/True for ==/!=. sqlite3
|
- Comparisons between str and str8 now return False/True for ==/!=.
|
||||||
returns str8 when recreating on object from it's __conform__ value. The
|
sqlite3 returns str8 when recreating on object from it's __conform__
|
||||||
struct module returns str8 for all string-related formats. This was true
|
value. The struct module returns str8 for all string-related
|
||||||
before this change, but becomes more apparent thanks to string comparisons
|
formats. This was true before this change, but becomes more
|
||||||
always being False.
|
apparent thanks to string comparisons always being False.
|
||||||
|
|
||||||
- Replaced `PyFile_FromFile()` with `PyFile_FromFd(fd, name. mode, buffer,
|
- Replaced `PyFile_FromFile()` with `PyFile_FromFd(fd, name. mode,
|
||||||
encoding, newline)`
|
buffer, encoding, newline)`.
|
||||||
|
|
||||||
- Fixed `imp.find_module()` to obey the -*- coding: -*- header.
|
- Fixed `imp.find_module()` to obey the -*- coding: -*- header.
|
||||||
|
|
||||||
@ -401,55 +415,55 @@ Core and Builtins
|
|||||||
with `Py_FileSystemDefaultEncoding` and a new API method
|
with `Py_FileSystemDefaultEncoding` and a new API method
|
||||||
`PyUnicode_DecodeFSDefault(char*)` was added.
|
`PyUnicode_DecodeFSDefault(char*)` was added.
|
||||||
|
|
||||||
- io.open() and _fileio.FileIO have grown a new argument closefd. A false
|
- io.open() and _fileio.FileIO have grown a new argument closefd. A
|
||||||
value disables the closing of the file descriptor.
|
false value disables the closing of the file descriptor.
|
||||||
|
|
||||||
- Added a new option -b to issues warnings (-bb for errors) about certain
|
- Added a new option -b to issues warnings (-bb for errors) about
|
||||||
operations between bytes/buffer and str like str(b'') and comparsion.
|
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
|
- The standards streams sys.stdin, stdout and stderr may be None when
|
||||||
when the C runtime library returns an invalid file descriptor for the
|
the when the C runtime library returns an invalid file descriptor
|
||||||
streams (fileno(stdin) < 0). For now this happens only for Windows GUI
|
for the streams (fileno(stdin) < 0). For now this happens only for
|
||||||
apps and scripts started with `pythonw.exe`.
|
Windows GUI apps and scripts started with `pythonw.exe`.
|
||||||
|
|
||||||
- Added PCbuild9 directory for VS 2008.
|
- Added PCbuild9 directory for VS 2008.
|
||||||
|
|
||||||
- Renamed structmember.h WRITE_RESTRICTED to PY_WRITE_RESTRICTED to work
|
- Renamed structmember.h WRITE_RESTRICTED to PY_WRITE_RESTRICTED to
|
||||||
around a name clash with VS 2008 on Windows.
|
work around a name clash with VS 2008 on Windows.
|
||||||
|
|
||||||
- Unbound methods are gone for good. ClassObject.method returns an ordinary
|
- Unbound methods are gone for good. ClassObject.method returns an
|
||||||
function object, instance.method still returns a bound method object.
|
ordinary function object, instance.method still returns a bound
|
||||||
The API of bound methods is cleaned up, too. The im_class attribute is
|
method object. The API of bound methods is cleaned up, too. The
|
||||||
removed and im_func + im_self are renamed to __func__ and __self__. The
|
im_class attribute is removed and im_func + im_self are renamed to
|
||||||
factory PyMethod_New takes only func and instance as argument.
|
__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
|
- intobject.h is no longer included by Python.h. The remains were
|
||||||
to longobject.h. It still exists to define several aliases from PyInt_
|
moved to longobject.h. It still exists to define several aliases
|
||||||
to PyLong_ functions.
|
from PyInt_ to PyLong_ functions.
|
||||||
|
|
||||||
- Removed sys.maxint, use sys.maxsize instead.
|
- Removed sys.maxint, use sys.maxsize instead.
|
||||||
|
|
||||||
|
|
||||||
Extension Modules
|
Extension Modules
|
||||||
-----------------
|
-----------------
|
||||||
|
|
||||||
- The `hotshot` profiler has been removed; use `cProfile` instead.
|
- The `hotshot` profiler has been removed; use `cProfile` instead.
|
||||||
|
|
||||||
|
|
||||||
Library
|
Library
|
||||||
-------
|
-------
|
||||||
|
|
||||||
- When loading an external file using testfile(), the passed-in encoding
|
- When loading an external file using testfile(), the passed-in
|
||||||
argument was being ignored if __loader__ is defined and forcing the source to
|
encoding argument was being ignored if __loader__ is defined and
|
||||||
be UTF-8.
|
forcing the source to be UTF-8.
|
||||||
|
|
||||||
- The methods `os.tmpnam()`, `os.tempnam()` and `os.tmpfile()` have been
|
- The methods `os.tmpnam()`, `os.tempnam()` and `os.tmpfile()` have
|
||||||
removed in favor of the tempfile module.
|
been removed in favor of the tempfile module.
|
||||||
|
|
||||||
- Removed the 'new' module.
|
- Removed the 'new' module.
|
||||||
|
|
||||||
- Removed all types from the 'types' module that are easily accessable through
|
- Removed all types from the 'types' module that are easily accessable
|
||||||
builtins.
|
through builtins.
|
||||||
|
|
||||||
|
|
||||||
What's New in Python 3.0a1?
|
What's New in Python 3.0a1?
|
||||||
@ -469,9 +483,9 @@ Core and Builtins
|
|||||||
- Removed the __oct__ and __hex__ special methods and added a bin()
|
- Removed the __oct__ and __hex__ special methods and added a bin()
|
||||||
builtin function.
|
builtin function.
|
||||||
|
|
||||||
- PEP 3127: octal literals now start with "0o". Old-style octal literals
|
- PEP 3127: octal literals now start with "0o". Old-style octal
|
||||||
are invalid. There are binary literals with a prefix of "0b".
|
literals are invalid. There are binary literals with a prefix of
|
||||||
This also affects int(x, 0).
|
"0b". This also affects int(x, 0).
|
||||||
|
|
||||||
- None, True, False are now keywords.
|
- None, True, False are now keywords.
|
||||||
|
|
||||||
@ -481,54 +495,57 @@ Core and Builtins
|
|||||||
|
|
||||||
- Remove tuple parameter unpacking (PEP 3113).
|
- Remove tuple parameter unpacking (PEP 3113).
|
||||||
|
|
||||||
- Remove the f_restricted attribute from frames. This naturally leads to the
|
- Remove the f_restricted attribute from frames. This naturally leads
|
||||||
removal of PyEval_GetRestricted() and PyFrame_IsRestricted().
|
to the removal of PyEval_GetRestricted() and PyFrame_IsRestricted().
|
||||||
|
|
||||||
- PEP 3132 was accepted. That means that you can do ``a, *b = range(5)``
|
- PEP 3132 was accepted. That means that you can do ``a, *b =
|
||||||
to assign 0 to a and [1, 2, 3, 4] to 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.
|
- range() now returns an iterator rather than a list. Floats are not
|
||||||
xrange() is no longer defined.
|
allowed. xrange() is no longer defined.
|
||||||
|
|
||||||
- Patch #1660500: hide iteration variable in list comps, add set comps
|
- Patch #1660500: hide iteration variable in list comps, add set comps
|
||||||
and use common code to handle compilation of iterative expressions
|
and use common code to handle compilation of iterative expressions.
|
||||||
|
|
||||||
- By default, != returns the opposite of ==, unless the latter returns
|
- By default, != returns the opposite of ==, unless the latter returns
|
||||||
NotImplemented.
|
NotImplemented.
|
||||||
|
|
||||||
- Patch #1680961: sys.exitfunc has been removed and replaced with a private
|
- Patch #1680961: sys.exitfunc has been removed and replaced with a
|
||||||
C-level API.
|
private C-level API.
|
||||||
|
|
||||||
- PEP 3115: new metaclasses: the metaclass is now specified as a
|
- 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
|
keyword arg in the class statement, which can now use the full
|
||||||
a parameter list. Also, the metaclass can implement a __prepare__ function
|
syntax of a parameter list. Also, the metaclass can implement a
|
||||||
which will be called to create the dictionary for the new class namespace.
|
__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
|
- The long-deprecated argument "pend" of PyFloat_FromString() has been
|
||||||
removed.
|
removed.
|
||||||
|
|
||||||
- The dir() function has been extended to call the __dir__() method on
|
- 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
|
its argument, if it exists. If not, it will work like before. This
|
||||||
customizing the output of dir() in the presence of a __getattr__().
|
allows customizing the output of dir() in the presence of a
|
||||||
|
__getattr__().
|
||||||
|
|
||||||
- Removed support for __members__ and __methods__.
|
- Removed support for __members__ and __methods__.
|
||||||
|
|
||||||
- Removed indexing/slicing on BaseException.
|
- Removed indexing/slicing on BaseException.
|
||||||
|
|
||||||
- input() became raw_input(): the name input() now implements the
|
- input() became raw_input(): the name input() now implements the
|
||||||
functionality formerly known as raw_input(); the name raw_input()
|
functionality formerly known as raw_input(); the name raw_input() is
|
||||||
is no longer defined.
|
no longer defined.
|
||||||
|
|
||||||
- Classes listed in an 'except' clause must inherit from BaseException.
|
- Classes listed in an 'except' clause must inherit from
|
||||||
|
BaseException.
|
||||||
|
|
||||||
- PEP 3106: dict.iterkeys(), .iteritems(), .itervalues() are now gone;
|
- PEP 3106: dict.iterkeys(), .iteritems(), .itervalues() are now gone;
|
||||||
and .keys(), .items(), .values() return dict views, which behave
|
and .keys(), .items(), .values() return dict views, which behave
|
||||||
like sets.
|
like sets.
|
||||||
|
|
||||||
- PEP 3105: print is now a function. Also (not in the PEP) the
|
- 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
|
'softspace' attribute of files is now gone (since print() doesn't
|
||||||
it). A side effect of this change is that you can get incomplete
|
use it). A side effect of this change is that you can get
|
||||||
output lines in interactive sessions:
|
incomplete output lines in interactive sessions:
|
||||||
|
|
||||||
>>> print(42, end="")
|
>>> print(42, end="")
|
||||||
42>>>
|
42>>>
|
||||||
@ -537,16 +554,16 @@ Core and Builtins
|
|||||||
|
|
||||||
- PEP 3102: keyword-only arguments.
|
- PEP 3102: keyword-only arguments.
|
||||||
|
|
||||||
- Int/Long unification is complete. The 'long' built-in type
|
- Int/Long unification is complete. The 'long' built-in type and
|
||||||
and literals with trailing 'L' or 'l' have been removed.
|
literals with trailing 'L' or 'l' have been removed. Performance
|
||||||
Performance may be sub-optimal (haven't really benchmarked).
|
may be sub-optimal (haven't really benchmarked).
|
||||||
|
|
||||||
- 'except E, V' must now be spelled as 'except E as V' and deletes V
|
- '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.
|
at the end of the except clause; V must be a simple name.
|
||||||
|
|
||||||
- Added function annotations per PEP 3107.
|
- Added function annotations per PEP 3107.
|
||||||
|
|
||||||
- Added nonlocal declaration from PEP 3104
|
- Added nonlocal declaration from PEP 3104:
|
||||||
|
|
||||||
>>> def f(x):
|
>>> def f(x):
|
||||||
... def inc():
|
... def inc():
|
||||||
@ -585,17 +602,14 @@ Core and Builtins
|
|||||||
|
|
||||||
- Absolute import is the default behavior for 'import foo' etc.
|
- Absolute import is the default behavior for 'import foo' etc.
|
||||||
|
|
||||||
- Removed support for syntax:
|
- Removed support for syntax: backticks (ie, `x`), <>.
|
||||||
backticks (ie, `x`), <>
|
|
||||||
|
|
||||||
- Removed these Python builtins:
|
- Removed these Python builtins: apply(), callable(), coerce(),
|
||||||
apply(), callable(), coerce(), execfile(), file(), reduce(), reload()
|
execfile(), file(), reduce(), reload().
|
||||||
|
|
||||||
- Removed these Python methods:
|
- Removed these Python methods: {}.has_key.
|
||||||
{}.has_key
|
|
||||||
|
|
||||||
- Removed these opcodes:
|
- Removed these opcodes: BINARY_DIVIDE, INPLACE_DIVIDE, UNARY_CONVERT.
|
||||||
BINARY_DIVIDE, INPLACE_DIVIDE, UNARY_CONVERT
|
|
||||||
|
|
||||||
- Remove C API support for restricted execution.
|
- Remove C API support for restricted execution.
|
||||||
|
|
||||||
@ -604,8 +618,7 @@ Core and Builtins
|
|||||||
sequences of unequal length -- it now stops after the shortest one
|
sequences of unequal length -- it now stops after the shortest one
|
||||||
is exhausted.
|
is exhausted.
|
||||||
|
|
||||||
- Additions:
|
- Additions: set literals, set comprehensions, ellipsis literal.
|
||||||
set literals, set comprehensions, ellipsis literal.
|
|
||||||
|
|
||||||
- Added class decorators per PEP 3129.
|
- Added class decorators per PEP 3129.
|
||||||
|
|
||||||
@ -613,85 +626,77 @@ Core and Builtins
|
|||||||
Extension Modules
|
Extension Modules
|
||||||
-----------------
|
-----------------
|
||||||
|
|
||||||
- Remove the imageop module. Obsolete long with its unit tests becoming
|
- Removed the imageop module. Obsolete long with its unit tests
|
||||||
useless from the removal of rgbimg and imgfile.
|
becoming useless from the removal of rgbimg and imgfile.
|
||||||
|
|
||||||
- Removed these attributes from Python modules:
|
- Removed these attributes from the operator module: div, idiv,
|
||||||
* operator module: div, idiv, __div__, __idiv__, isCallable, sequenceIncludes
|
__div__, __idiv__, isCallable, sequenceIncludes.
|
||||||
* sys module: exc_clear(), exc_type, exc_value, exc_traceback
|
|
||||||
|
- Removed these attributes from the sys module: exc_clear(), exc_type,
|
||||||
|
exc_value, exc_traceback.
|
||||||
|
|
||||||
|
|
||||||
Library
|
Library
|
||||||
-------
|
-------
|
||||||
|
|
||||||
- Remove the compiler package. Use of the _ast module and (an eventual)
|
- Removed the compiler package. Use of the _ast module and (an
|
||||||
AST -> bytecode mechanism.
|
eventual) AST -> bytecode mechanism.
|
||||||
|
|
||||||
- Removed these modules:
|
- Removed these modules: audiodev, Bastion, bsddb185, exceptions,
|
||||||
* audiodev, Bastion, bsddb185, exceptions, linuxaudiodev,
|
linuxaudiodev, md5, MimeWriter, mimify, popen2, rexec, sets, sha,
|
||||||
md5, MimeWriter, mimify, popen2,
|
stringold, strop, sunaudiodev, timing, xmllib.
|
||||||
rexec, sets, sha, stringold, strop, sunaudiodev, timing, xmllib.
|
|
||||||
|
|
||||||
- Moved these modules to Tools/Demos:
|
- Moved the toaiff module to Tools/Demos.
|
||||||
* toaiff
|
|
||||||
|
|
||||||
- Remove obsolete IRIX modules: al/AL, cd/CD, cddb, cdplayer, cl/CL, DEVICE,
|
- Removed obsolete IRIX modules: al/AL, cd/CD, cddb, cdplayer, cl/CL,
|
||||||
ERRNO, FILE, fl/FL, flp, fm, GET, gl/GL, GLWS, IN, imgfile, IOCTL, jpeg,
|
DEVICE, ERRNO, FILE, fl/FL, flp, fm, GET, gl/GL, GLWS, IN, imgfile,
|
||||||
panel, panelparser, readcd, sgi, sv/SV, torgb, WAIT.
|
IOCTL, jpeg, panel, panelparser, readcd, sgi, sv/SV, torgb, WAIT.
|
||||||
|
|
||||||
- Remove obsolete functions:
|
- Removed obsolete functions: commands.getstatus(), os.popen*().
|
||||||
* commands.getstatus(), os.popen*,
|
|
||||||
|
|
||||||
- Remove functions in the string module that are also string methods;
|
- Removed functions in the string module that are also string methods;
|
||||||
Remove string.{letters, lowercase, uppercase}.
|
Remove string.{letters, lowercase, uppercase}.
|
||||||
|
|
||||||
- Remove support for long obsolete platforms: plat-aix3, plat-irix5.
|
- Removed support for long obsolete platforms: plat-aix3, plat-irix5.
|
||||||
|
|
||||||
- Remove xmlrpclib.SlowParser. It was based on xmllib.
|
- Removed xmlrpclib.SlowParser. It was based on xmllib.
|
||||||
|
|
||||||
- Patch #1680961: atexit has been reimplemented in C.
|
- Patch #1680961: atexit has been reimplemented in C.
|
||||||
|
|
||||||
- Add new codecs for UTF-32, UTF-32-LE and UTF-32-BE.
|
- Add new codecs for UTF-32, UTF-32-LE and UTF-32-BE.
|
||||||
|
|
||||||
|
|
||||||
Build
|
Build
|
||||||
-----
|
-----
|
||||||
|
|
||||||
C API
|
C API
|
||||||
-----
|
-----
|
||||||
|
|
||||||
- Removed these Python slots:
|
- Removed these Python slots: __coerce__, __div__, __idiv__, __rdiv__.
|
||||||
__coerce__, __div__, __idiv__, __rdiv__
|
|
||||||
|
|
||||||
- Removed these C APIs:
|
- Removed these C APIs: PyNumber_Coerce(), PyNumber_CoerceEx(),
|
||||||
PyNumber_Coerce(), PyNumber_CoerceEx(), PyMember_Get, PyMember_Set
|
PyMember_Get, PyMember_Set.
|
||||||
|
|
||||||
- Removed these C slots/fields:
|
- Removed these C slots/fields: nb_divide, nb_inplace_divide.
|
||||||
nb_divide, nb_inplace_divide
|
|
||||||
|
|
||||||
- Removed these macros:
|
- Removed these macros: staticforward, statichere, PyArg_GetInt,
|
||||||
staticforward, statichere, PyArg_GetInt, PyArg_NoArgs, _PyObject_Del
|
PyArg_NoArgs, _PyObject_Del.
|
||||||
|
|
||||||
- Removed these typedefs:
|
|
||||||
intargfunc, intintargfunc, intobjargproc, intintobjargproc,
|
|
||||||
getreadbufferproc, getwritebufferproc, getsegcountproc, getcharbufferproc,
|
|
||||||
memberlist
|
|
||||||
|
|
||||||
|
- Removed these typedefs: intargfunc, intintargfunc, intobjargproc,
|
||||||
|
intintobjargproc, getreadbufferproc, getwritebufferproc,
|
||||||
|
getsegcountproc, getcharbufferproc, memberlist.
|
||||||
|
|
||||||
Tests
|
Tests
|
||||||
-----
|
-----
|
||||||
|
|
||||||
- Removed test.testall as test.regrtest replaces it.
|
- Removed test.testall as test.regrtest replaces it.
|
||||||
|
|
||||||
|
|
||||||
Documentation
|
Documentation
|
||||||
-------------
|
-------------
|
||||||
|
|
||||||
Mac
|
Mac
|
||||||
---
|
---
|
||||||
|
|
||||||
- The cfmfile was removed.
|
- The cfmfile module was removed.
|
||||||
|
|
||||||
|
|
||||||
Platforms
|
Platforms
|
||||||
---------
|
---------
|
||||||
@ -700,8 +705,8 @@ Platforms
|
|||||||
|
|
||||||
- Support for RiscOS, Irix, Tru64 was removed (alledgedly).
|
- Support for RiscOS, Irix, Tru64 was removed (alledgedly).
|
||||||
|
|
||||||
|
|
||||||
Tools/Demos
|
Tools/Demos
|
||||||
-----------
|
-----------
|
||||||
|
|
||||||
|
|
||||||
**(For information about older versions, consult the HISTORY file.)**
|
**(For information about older versions, consult the HISTORY file.)**
|
||||||
|
Loading…
Reference in New Issue
Block a user