| Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 1 | +++++++++++ | 
|  | 2 | Python News | 
|  | 3 | +++++++++++ | 
|  | 4 |  | 
| Anthony Baxter | b0c6630 | 2004-11-04 05:23:17 +0000 | [diff] [blame] | 5 | (editors: check NEWS.help for information about editing NEWS using ReST.) | 
|  | 6 |  | 
| Antoine Pitrou | 6e1df8d | 2008-07-25 19:58:18 +0000 | [diff] [blame] | 7 | What's new in Python 3.0b3? | 
|  | 8 | =========================== | 
|  | 9 |  | 
|  | 10 | *Release date: XX-XXX-2008* | 
|  | 11 |  | 
| Antoine Pitrou | 9a2310d | 2008-07-25 22:39:39 +0000 | [diff] [blame^] | 12 | Core and Builtins | 
|  | 13 | ----------------- | 
|  | 14 |  | 
|  | 15 | - Issue #1819: function calls with several named parameters are now on | 
|  | 16 | average 35% faster (as measured by pybench). | 
|  | 17 |  | 
| Antoine Pitrou | 6e1df8d | 2008-07-25 19:58:18 +0000 | [diff] [blame] | 18 | Library | 
|  | 19 | ------- | 
|  | 20 |  | 
|  | 21 | - Issue #3394: zipfile.writestr sets external attributes when passed a | 
|  | 22 | file name rather than a ZipInfo instance, so files are extracted with | 
|  | 23 | mode 0600 rather than 000 under Unix. | 
|  | 24 |  | 
|  | 25 |  | 
| Amaury Forgeot d'Arc | 9196dc6 | 2008-06-19 20:54:32 +0000 | [diff] [blame] | 26 | What's new in Python 3.0b2? | 
|  | 27 | =========================== | 
|  | 28 |  | 
| Barry Warsaw | 4bd1cef | 2008-07-18 02:28:44 +0000 | [diff] [blame] | 29 | *Release date: 17-Jul-2008* | 
| Amaury Forgeot d'Arc | 9196dc6 | 2008-06-19 20:54:32 +0000 | [diff] [blame] | 30 |  | 
|  | 31 | Core and Builtins | 
|  | 32 | ----------------- | 
|  | 33 |  | 
| Mark Dickinson | 65fe25e | 2008-07-16 11:30:51 +0000 | [diff] [blame] | 34 | - Issue #3008: the float type has a new instance method 'float.hex' | 
|  | 35 | and a new class method 'float.fromhex' to convert floating-point | 
|  | 36 | numbers to and from hexadecimal strings, respectively. | 
|  | 37 |  | 
| Eric Smith | d68af8f | 2008-07-16 00:15:35 +0000 | [diff] [blame] | 38 | - Issue #3083: Add alternate (#) formatting for bin, oct, hex output | 
|  | 39 | for str.format().  This adds the prefix 0b, 0o, or 0x, respectively. | 
|  | 40 |  | 
| Amaury Forgeot d'Arc | a4db686 | 2008-07-04 21:26:43 +0000 | [diff] [blame] | 41 | - Issue #3280: like chr(), the "%c" format now accepts unicode code points | 
|  | 42 | beyond the Basic Multilingual Plane (above 0xffff) on all configurations. On | 
|  | 43 | "narrow Unicode" builds, the result is a string of 2 code units, forming a | 
|  | 44 | UTF-16 surrogate pair. | 
|  | 45 |  | 
| Georg Brandl | d52429f | 2008-07-04 15:55:02 +0000 | [diff] [blame] | 46 | - Issue #3282: str.isprintable() should return False for undefined | 
|  | 47 | Unicode characters. | 
|  | 48 |  | 
| Martin v. Löwis | 029656f | 2008-06-30 04:06:08 +0000 | [diff] [blame] | 49 | - Issue #3236: Return small longs from PyLong_FromString. | 
|  | 50 |  | 
| Benjamin Peterson | e652821 | 2008-07-15 15:32:09 +0000 | [diff] [blame] | 51 | - Exception tracebacks now support exception chaining. | 
|  | 52 |  | 
| Amaury Forgeot d'Arc | 9196dc6 | 2008-06-19 20:54:32 +0000 | [diff] [blame] | 53 | Library | 
|  | 54 | ------- | 
|  | 55 |  | 
| Brett Cannon | c2542e9 | 2008-07-25 18:19:20 +0000 | [diff] [blame] | 56 | - Removed the sunaudio module. Use sunau instead. | 
|  | 57 |  | 
| Georg Brandl | 30704ea | 2008-07-23 15:07:12 +0000 | [diff] [blame] | 58 | - Removed "ast" function aliases from the parser module. | 
|  | 59 |  | 
| Thomas Heller | 15383a0 | 2008-07-15 19:46:52 +0000 | [diff] [blame] | 60 | - Issue #3313: Fixed a crash when a failed dlopen() call does not set | 
|  | 61 | a valid dlerror() message. | 
|  | 62 |  | 
| Thomas Heller | 0261e1e | 2008-07-15 17:25:07 +0000 | [diff] [blame] | 63 | - Issue #3258: Fixed a crash when a ctypes POINTER type to an | 
|  | 64 | incomplete structure was created. | 
|  | 65 |  | 
| Georg Brandl | 1abcbf8 | 2008-07-01 19:28:43 +0000 | [diff] [blame] | 66 | - Issue #2683: Fix inconsistency in subprocess.Popen.communicate(): the | 
|  | 67 | argument now must be a bytes object in any case. | 
|  | 68 |  | 
| Amaury Forgeot d'Arc | 9196dc6 | 2008-06-19 20:54:32 +0000 | [diff] [blame] | 69 | - Issue #3145: help("modules whatever") failed when trying to load the source | 
|  | 70 | code of every single module of the standard library, including invalid files | 
|  | 71 | used in the test suite. | 
|  | 72 |  | 
| Georg Brandl | bded4d3 | 2008-07-17 18:15:35 +0000 | [diff] [blame] | 73 | - The gettext library now consistently uses Unicode strings for message ids | 
|  | 74 | and message strings, and ``ugettext()`` and the like don't exist anymore. | 
| Benjamin Peterson | 801844d | 2008-07-14 14:32:15 +0000 | [diff] [blame] | 75 |  | 
| Benjamin Peterson | e652821 | 2008-07-15 15:32:09 +0000 | [diff] [blame] | 76 | - The traceback module has been expanded to handle chained exceptions. | 
|  | 77 |  | 
| Amaury Forgeot d'Arc | 612f61f | 2008-07-02 23:02:21 +0000 | [diff] [blame] | 78 | C API | 
|  | 79 | ----- | 
|  | 80 |  | 
|  | 81 | - Issue #3247: the function Py_FindMethod was removed. Modern types should | 
|  | 82 | use the tp_methods slot instead. | 
|  | 83 |  | 
| Benjamin Peterson | de9c869 | 2008-07-01 18:23:09 +0000 | [diff] [blame] | 84 | Tools/Demos | 
|  | 85 | ----------- | 
|  | 86 |  | 
| Georg Brandl | 336341f | 2008-07-01 20:21:28 +0000 | [diff] [blame] | 87 | - The Mac/Demos directory has been removed. | 
| Benjamin Peterson | de9c869 | 2008-07-01 18:23:09 +0000 | [diff] [blame] | 88 |  | 
| Georg Brandl | 336341f | 2008-07-01 20:21:28 +0000 | [diff] [blame] | 89 | - All of the Mac scripts have been removed (including BuildApplet.py). | 
| Benjamin Peterson | de9c869 | 2008-07-01 18:23:09 +0000 | [diff] [blame] | 90 |  | 
|  | 91 |  | 
| Brett Cannon | 0d71ee7 | 2008-05-08 18:13:40 +0000 | [diff] [blame] | 92 | What's new in Python 3.0b1? | 
|  | 93 | =========================== | 
|  | 94 |  | 
| Barry Warsaw | c1e689e | 2008-06-19 00:35:43 +0000 | [diff] [blame] | 95 | *Release date: 18-Jun-2008* | 
| Brett Cannon | 0d71ee7 | 2008-05-08 18:13:40 +0000 | [diff] [blame] | 96 |  | 
|  | 97 | Core and Builtins | 
|  | 98 | ----------------- | 
|  | 99 |  | 
| Brett Cannon | db73491 | 2008-06-27 00:52:15 +0000 | [diff] [blame] | 100 | - Issue #3211: warnings.warn_explicit() did not guard against its 'registry' | 
|  | 101 | argument being anything other than a dict or None. Also fixed a bug in error | 
|  | 102 | handling when 'message' and 'category' were both set to None, triggering a | 
|  | 103 | bus error. | 
|  | 104 |  | 
| Amaury Forgeot d'Arc | c856c7a | 2008-06-16 19:50:09 +0000 | [diff] [blame] | 105 | - Issue #3100: Corrected a crash on deallocation of a subclassed weakref which | 
|  | 106 | holds the last (strong) reference to its referent. | 
|  | 107 |  | 
| Georg Brandl | 559e5d7 | 2008-06-11 18:37:52 +0000 | [diff] [blame] | 108 | - Issue #2630: implement PEP 3138. repr() now returns printable | 
|  | 109 | Unicode characters unescaped, to get an ASCII-only representation | 
|  | 110 | of an object use ascii(). | 
|  | 111 |  | 
| Amaury Forgeot d'Arc | f1ca0b1 | 2008-06-11 17:40:47 +0000 | [diff] [blame] | 112 | - Issue #1342: On windows, Python could not start when installed in a | 
|  | 113 | directory with non-ascii characters. | 
|  | 114 |  | 
| Martin v. Löwis | 1a21451 | 2008-06-11 05:26:20 +0000 | [diff] [blame] | 115 | - Implement PEP 3121: new module initialization and finalization API. | 
|  | 116 |  | 
| Georg Brandl | e1b5ac6 | 2008-06-04 13:06:58 +0000 | [diff] [blame] | 117 | - Removed the already-defunct ``-t`` option. | 
|  | 118 |  | 
| Amaury Forgeot d'Arc | 74c71f5 | 2008-05-26 21:41:42 +0000 | [diff] [blame] | 119 | - Issue #2957: Corrected a ValueError "recursion limit exceeded", when | 
|  | 120 | unmarshalling many code objects, which happens when importing a | 
|  | 121 | large .pyc file (~1000 functions). | 
|  | 122 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 123 | - Issue #2963: fix merging oversight that disabled method cache for | 
|  | 124 | all types. | 
| Georg Brandl | 1bcf35a | 2008-05-25 09:32:09 +0000 | [diff] [blame] | 125 |  | 
| Georg Brandl | c9b0953 | 2008-05-25 09:24:38 +0000 | [diff] [blame] | 126 | - Issue #2964: fix a missing INCREF in instancemethod_descr_get. | 
|  | 127 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 128 | - Issue #2895: Don't crash when given bytes objects as keyword names. | 
| Georg Brandl | d8b690f | 2008-05-16 17:28:50 +0000 | [diff] [blame] | 129 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 130 | - Issue #2798: When parsing arguments with PyArg_ParseTuple, the "s" | 
|  | 131 | code now allows any unicode string and returns a utf-8 encoded | 
|  | 132 | buffer, just like the "s#" code already does.  The "z" code was | 
|  | 133 | corrected as well. | 
| Amaury Forgeot d'Arc | 0740459 | 2008-05-12 13:19:07 +0000 | [diff] [blame] | 134 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 135 | - Issue #2863: generators now have a ``gen.__name__`` attribute that | 
|  | 136 | equals ``gen.gi_code.co_name``, like ``func.__name___`` that equals | 
|  | 137 | ``func.func_code.co_name``.  The repr() of a generator now also | 
|  | 138 | contains this name. | 
| Alexandre Vassalotti | e9f305f | 2008-05-16 04:39:54 +0000 | [diff] [blame] | 139 |  | 
|  | 140 | - Issue #2831: enumerate() now has a ``start`` argument. | 
|  | 141 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 142 | - Issue #2801: fix bug in the float.is_integer method where a | 
|  | 143 | ValueError was sometimes incorrectly raised. | 
| Mark Dickinson | c4352b0 | 2008-05-09 13:55:01 +0000 | [diff] [blame] | 144 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 145 | - The ``--with-toolbox-glue`` option (and the associated | 
|  | 146 | pymactoolbox.h) have been removed. | 
| Benjamin Peterson | 79629ab | 2008-05-14 21:07:12 +0000 | [diff] [blame] | 147 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 148 | - Issue #2196: hasattr() now lets exceptions which do not inherit | 
|  | 149 | Exception (KeyboardInterrupt, and SystemExit) propagate instead of | 
|  | 150 | ignoring them. | 
| Alexandre Vassalotti | eca20b6 | 2008-05-16 02:54:33 +0000 | [diff] [blame] | 151 |  | 
| Benjamin Peterson | eec3d71 | 2008-06-11 15:59:43 +0000 | [diff] [blame] | 152 | - #3021 Exception reraising sematics have been significantly improved.  However, | 
|  | 153 | f_exc_type, f_exc_value, and f_exc_traceback cannot be accessed from Python | 
|  | 154 | code anymore. | 
|  | 155 |  | 
| Benjamin Peterson | 4f92ca4 | 2008-06-11 20:21:57 +0000 | [diff] [blame] | 156 | - Three of PyNumberMethods' members, nb_coerce, nb_hex, and nb_oct, have been | 
|  | 157 | removed. | 
|  | 158 |  | 
| Brett Cannon | 0d71ee7 | 2008-05-08 18:13:40 +0000 | [diff] [blame] | 159 | Extension Modules | 
|  | 160 | ----------------- | 
|  | 161 |  | 
| Georg Brandl | 38feaf0 | 2008-05-25 07:45:51 +0000 | [diff] [blame] | 162 | - Renamed ``_winreg`` module to ``winreg``. | 
|  | 163 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 164 | - Support os.O_ASYNC and fcntl.FASYNC if the constants exist on the | 
|  | 165 | platform. | 
| Alexandre Vassalotti | bee3253 | 2008-05-16 18:15:12 +0000 | [diff] [blame] | 166 |  | 
|  | 167 | - Support for Windows 9x has been removed from the winsound module. | 
|  | 168 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 169 | - Issue #2870: cmathmodule.c compile error. | 
| Alexandre Vassalotti | eca20b6 | 2008-05-16 02:54:33 +0000 | [diff] [blame] | 170 |  | 
| Brett Cannon | 0d71ee7 | 2008-05-08 18:13:40 +0000 | [diff] [blame] | 171 | Library | 
|  | 172 | ------- | 
|  | 173 |  | 
| Amaury Forgeot d'Arc | cb0d2d7 | 2008-06-18 22:19:22 +0000 | [diff] [blame] | 174 | - Patch #3133: http.server.CGIHTTPRequestHandler did not work on windows. | 
|  | 175 |  | 
| Jeremy Hylton | 1afc169 | 2008-06-18 20:49:58 +0000 | [diff] [blame] | 176 | - a new ``urllib`` package was created.  It consists of code from | 
|  | 177 | ``urllib``, ``urllib2``, ``urlparse``, and ``robotparser``.  The old | 
|  | 178 | modules have all been removed.  The new package has five submodules: | 
|  | 179 | ``urllib.parse``, ``urllib.request``, ``urllib.response``, | 
|  | 180 | ``urllib.error``, and ``urllib.robotparser``.  The | 
|  | 181 | ``urllib.request.urlopen()`` function uses the url opener from | 
|  | 182 | ``urllib2``.  (Note that the unittests have not been renamed for the | 
|  | 183 | beta, but they will be renamed in the future.) | 
|  | 184 |  | 
| Benjamin Peterson | a0c0a4a | 2008-06-12 22:15:50 +0000 | [diff] [blame] | 185 | - rfc822 has been removed in favor of the email package. | 
|  | 186 |  | 
| Benjamin Peterson | 425ea7f | 2008-06-12 14:11:35 +0000 | [diff] [blame] | 187 | - mimetools has been removed in favor of the email package. | 
| Benjamin Peterson | 23c51a2 | 2008-06-12 14:06:57 +0000 | [diff] [blame] | 188 |  | 
| Barry Warsaw | f501942 | 2008-06-12 02:42:00 +0000 | [diff] [blame] | 189 | - Patch #2849: Remove use of rfc822 module from standard library. | 
|  | 190 |  | 
| Alexandre Vassalotti | 794652d | 2008-06-11 22:58:36 +0000 | [diff] [blame] | 191 | - Added C optimized implementation of io.StringIO. | 
|  | 192 |  | 
| Alexandre Vassalotti | ca2d610 | 2008-06-12 18:26:05 +0000 | [diff] [blame] | 193 | - The ``pickle`` module is now automatically use an optimized C | 
|  | 194 | implementation of Pickler and Unpickler when available. The | 
|  | 195 | ``cPickle`` module is no longer needed. | 
|  | 196 |  | 
| Georg Brandl | 877b10a | 2008-06-01 21:25:55 +0000 | [diff] [blame] | 197 | - Removed the ``htmllib`` and ``sgmllib`` modules. | 
|  | 198 |  | 
| Georg Brandl | 6101395 | 2008-05-28 15:56:30 +0000 | [diff] [blame] | 199 | - The deprecated ``SmartCookie`` and ``SimpleCookie`` classes have | 
|  | 200 | been removed from ``http.cookies``. | 
|  | 201 |  | 
| Brett Cannon | a23810f | 2008-05-26 19:04:21 +0000 | [diff] [blame] | 202 | - The ``commands`` module has been removed. Its getoutput() and | 
|  | 203 | getstatusoutput() functions have been moved to the ``subprocess`` module. | 
|  | 204 |  | 
| Georg Brandl | 3d5c425 | 2008-05-26 18:03:26 +0000 | [diff] [blame] | 205 | - The ``http`` package was created; it contains the old ``httplib`` | 
|  | 206 | as ``http.client``, ``Cookie`` as ``http.cookies``, ``cookielib`` | 
|  | 207 | as ``http.cookiejar``, and the content of the three ``HTTPServer`` | 
|  | 208 | modules as ``http.server``. | 
|  | 209 |  | 
| Georg Brandl | 38eceaa | 2008-05-26 11:14:17 +0000 | [diff] [blame] | 210 | - The ``xmlrpc`` package was created; it contains the old | 
|  | 211 | ``xmlrpclib`` module as ``xmlrpc.client`` and the content of | 
|  | 212 | the old ``SimpleXMLRPCServer`` and ``DocXMLRPCServer`` modules | 
| Antoine Pitrou | 6e1df8d | 2008-07-25 19:58:18 +0000 | [diff] [blame] | 213 | as ``xmlrpc.server``. | 
| Georg Brandl | 38eceaa | 2008-05-26 11:14:17 +0000 | [diff] [blame] | 214 |  | 
|  | 215 | - The ``dbm`` package was created, containing the old modules | 
|  | 216 | ``anydbm`` and ``whichdb`` in its ``__init__.py``, and having | 
|  | 217 | ``dbm.gnu`` (was ``gdbm``), ``dbm.bsd`` (was ``dbhash``), | 
|  | 218 | ``dbm.ndbm`` (was ``dbm``) and ``dbm.dumb`` (was ``dumbdbm``) | 
|  | 219 | as submodules. | 
|  | 220 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 221 | - The ``repr`` module has been renamed to ``reprlib``. | 
| Alexandre Vassalotti | 1f2ba4b | 2008-05-16 07:12:44 +0000 | [diff] [blame] | 222 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 223 | - The ``statvfs`` module has been removed. | 
| Brett Cannon | acbb786 | 2008-05-16 00:42:57 +0000 | [diff] [blame] | 224 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 225 | - Issue #1713041: fix pprint's handling of maximum depth. | 
| Alexandre Vassalotti | eca20b6 | 2008-05-16 02:54:33 +0000 | [diff] [blame] | 226 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 227 | - Issue #2250: Exceptions raised during evaluation of names in | 
|  | 228 | rlcompleter's ``Completer.complete()`` method are now caught and | 
|  | 229 | ignored. | 
| Alexandre Vassalotti | 8ae3e05 | 2008-05-16 00:41:41 +0000 | [diff] [blame] | 230 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 231 | - Patch #2659: Added ``break_on_hyphens`` option to textwrap's | 
|  | 232 | ``TextWrapper`` class. | 
| Alexandre Vassalotti | 1d1eaa4 | 2008-05-14 22:59:42 +0000 | [diff] [blame] | 233 |  | 
| Alexandre Vassalotti | 6461e10 | 2008-05-15 22:09:29 +0000 | [diff] [blame] | 234 | - Issue #2487: change the semantics of math.ldexp(x, n) when n is too | 
|  | 235 | large to fit in a C long.  ldexp(x, n) now returns a zero (with | 
|  | 236 | suitable sign) if n is large and negative; previously, it raised | 
|  | 237 | OverflowError. | 
|  | 238 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 239 | - The ``ConfigParser`` module has been renamed to ``configparser``. | 
| Alexandre Vassalotti | 5f8ced2 | 2008-05-16 00:03:33 +0000 | [diff] [blame] | 240 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 241 | - Issue #2865: webbrowser.open() works again in a KDE environment. | 
| Amaury Forgeot d'Arc | 2b2b44d | 2008-05-12 14:41:00 +0000 | [diff] [blame] | 242 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 243 | - The ``multifile`` module has been removed. | 
| Brett Cannon | d3343cb | 2008-05-12 03:18:21 +0000 | [diff] [blame] | 244 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 245 | - The ``SocketServer`` module has been renamed to ``socketserver``. | 
| Alexandre Vassalotti | ce26195 | 2008-05-12 02:31:37 +0000 | [diff] [blame] | 246 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 247 | - Fixed the ``__all__`` setting on ``collections`` to include | 
|  | 248 | ``UserList`` and ``UserString``. | 
| Brett Cannon | 23a4a7b | 2008-05-12 00:56:28 +0000 | [diff] [blame] | 249 |  | 
| Brett Cannon | cf3520c | 2008-05-11 22:47:58 +0000 | [diff] [blame] | 250 | - The sre module has been removed. | 
|  | 251 |  | 
| Alexandre Vassalotti | f260e44 | 2008-05-11 19:59:59 +0000 | [diff] [blame] | 252 | - The Queue module has been renamed to queue. | 
|  | 253 |  | 
| Alexandre Vassalotti | f7fa63d | 2008-05-11 08:55:36 +0000 | [diff] [blame] | 254 | - The copy_reg module has been renamed to copyreg. | 
|  | 255 |  | 
| Brett Cannon | d8b61ee | 2008-05-11 03:00:26 +0000 | [diff] [blame] | 256 | - The mhlib module has been removed. | 
|  | 257 |  | 
| Brett Cannon | bd47442 | 2008-05-10 22:42:14 +0000 | [diff] [blame] | 258 | - The ihooks module has been removed. | 
|  | 259 |  | 
| Brett Cannon | b59a2bd | 2008-05-10 22:03:16 +0000 | [diff] [blame] | 260 | - The fpformat module has been removed. | 
|  | 261 |  | 
| Brett Cannon | f4fd993 | 2008-05-10 21:11:46 +0000 | [diff] [blame] | 262 | - The dircache module has been removed. | 
|  | 263 |  | 
| Brett Cannon | d175b4c | 2008-05-10 03:19:54 +0000 | [diff] [blame] | 264 | - The Canvas module has been removed. | 
|  | 265 |  | 
| Mark Dickinson | b27406c | 2008-05-09 13:42:33 +0000 | [diff] [blame] | 266 | - The Decimal module gained the magic methods __round__, __ceil__, | 
|  | 267 | __floor__ and __trunc__, to give support for round, math.ceil, | 
|  | 268 | math.floor and math.trunc. | 
|  | 269 |  | 
| Brett Cannon | 900ee3a | 2008-05-08 20:31:11 +0000 | [diff] [blame] | 270 | - The user module has been removed. | 
|  | 271 |  | 
| Brett Cannon | 34afe87 | 2008-05-08 20:31:44 +0000 | [diff] [blame] | 272 | - The mutex module has been removed. | 
|  | 273 |  | 
| Brett Cannon | 0d71ee7 | 2008-05-08 18:13:40 +0000 | [diff] [blame] | 274 | - The imputil module has been removed. | 
|  | 275 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 276 | - os.path.walk has been removed in favor of os.walk. | 
| Benjamin Peterson | d71ca41 | 2008-05-08 23:44:58 +0000 | [diff] [blame] | 277 |  | 
| Alexandre Vassalotti | 5f8ced2 | 2008-05-16 00:03:33 +0000 | [diff] [blame] | 278 | - pdb gained the "until" command. | 
|  | 279 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 280 | - The test.test_support module has been renamed to test.support. | 
| Benjamin Peterson | ee8712c | 2008-05-20 21:35:26 +0000 | [diff] [blame] | 281 |  | 
| Georg Brandl | f992640 | 2008-06-13 06:32:25 +0000 | [diff] [blame] | 282 | - The threading module API was renamed to be PEP 8 complaint. | 
| Benjamin Peterson | 672b803 | 2008-06-11 19:14:14 +0000 | [diff] [blame] | 283 |  | 
| Georg Brandl | 294d5a9 | 2008-06-01 19:25:32 +0000 | [diff] [blame] | 284 | Tools/Demos | 
|  | 285 | ----------- | 
|  | 286 |  | 
|  | 287 | - The bgen tool has been removed. | 
| Benjamin Peterson | 630c829 | 2008-06-01 18:50:38 +0000 | [diff] [blame] | 288 |  | 
| Brett Cannon | 0d71ee7 | 2008-05-08 18:13:40 +0000 | [diff] [blame] | 289 | Build | 
|  | 290 | ----- | 
|  | 291 |  | 
|  | 292 |  | 
| Barry Warsaw | 66079cd | 2008-04-04 01:36:36 +0000 | [diff] [blame] | 293 | What's New in Python 3.0a5? | 
|  | 294 | =========================== | 
|  | 295 |  | 
| Barry Warsaw | 9eab8b0 | 2008-05-08 13:05:38 +0000 | [diff] [blame] | 296 | *Release date: 08-May-2008* | 
| Barry Warsaw | 66079cd | 2008-04-04 01:36:36 +0000 | [diff] [blame] | 297 |  | 
|  | 298 | Core and Builtins | 
|  | 299 | ----------------- | 
|  | 300 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 301 | - Fixed misbehaviour of PyLong_FromSsize_t on systems where | 
|  | 302 | sizeof(size_t) > sizeof(long). | 
| Mark Dickinson | 7ab6be2 | 2008-04-15 21:42:42 +0000 | [diff] [blame] | 303 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 304 | - Issue #2221: Corrected a SystemError "error return without exception | 
|  | 305 | set", when the code executed by exec() raises an exception, and | 
|  | 306 | sys.stdout.flush() also raises an error. | 
| Amaury Forgeot d'Arc | 7fedbe5 | 2008-04-10 21:03:09 +0000 | [diff] [blame] | 307 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 308 | - Bug #2565: The repr() of type objects now calls them 'class', not | 
|  | 309 | 'type' - whether they are builtin types or not. | 
| Martin v. Löwis | 250ad61 | 2008-04-07 05:43:42 +0000 | [diff] [blame] | 310 |  | 
| Martin v. Löwis | 790465f | 2008-04-05 20:41:37 +0000 | [diff] [blame] | 311 | - The command line processing was converted to pass Unicode strings | 
|  | 312 | through as unmodified as possible; as a consequence, the C API | 
|  | 313 | related to command line arguments was changed to use wchar_t. | 
|  | 314 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 315 | - All backslashes in raw strings are interpreted literally.  This | 
|  | 316 | means that '\u' and '\U' escapes are not treated specially. | 
| Benjamin Peterson | a2f837f | 2008-04-28 21:05:10 +0000 | [diff] [blame] | 317 |  | 
| Barry Warsaw | 66079cd | 2008-04-04 01:36:36 +0000 | [diff] [blame] | 318 | Extension Modules | 
|  | 319 | ----------------- | 
|  | 320 |  | 
|  | 321 | Library | 
|  | 322 | ------- | 
|  | 323 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 324 | - ctypes objects now support the PEP3118 buffer interface. | 
| Thomas Heller | b041fda | 2008-04-30 17:11:46 +0000 | [diff] [blame] | 325 |  | 
| Thomas Heller | e106dc3 | 2008-04-24 18:39:36 +0000 | [diff] [blame] | 326 | - Issue #2682: ctypes callback functions now longer contain a cyclic | 
|  | 327 | reference to themselves. | 
|  | 328 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 329 | - Issue #2058: Remove the buf attribute and add __slots__ to the | 
|  | 330 | TarInfo class in order to reduce tarfile's memory usage. | 
| Lars Gustäbel | c2ea8c6 | 2008-04-14 10:05:48 +0000 | [diff] [blame] | 331 |  | 
| Martin v. Löwis | 8efc62c | 2008-04-10 19:02:25 +0000 | [diff] [blame] | 332 | - Bug #2606: Avoid calling .sort() on a dict_keys object. | 
|  | 333 |  | 
| Thomas Heller | bff533b | 2008-04-04 19:53:14 +0000 | [diff] [blame] | 334 | - The bundled libffi copy is now in sync with the recently released | 
|  | 335 | libffi3.0.5 version, apart from some small changes to | 
|  | 336 | Modules/_ctypes/libffi/configure.ac. | 
|  | 337 |  | 
| Thomas Heller | f44b9a1 | 2008-04-04 10:18:23 +0000 | [diff] [blame] | 338 | Build | 
|  | 339 | ----- | 
|  | 340 |  | 
| Mark Dickinson | b0e2b4c | 2008-04-26 20:48:56 +0000 | [diff] [blame] | 341 | - Issue #1496032: On alpha, use -mieee when gcc is the compiler. | 
|  | 342 |  | 
| Guido van Rossum | dc21db3 | 2008-04-07 18:37:41 +0000 | [diff] [blame] | 343 | - "make install" is now an alias for "make altinstall", to prevent | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 344 | accidentally overwriting a Python 2.x installation.  Use "make | 
|  | 345 | fullinstall" to force Python 3.0 to be installed as "python". | 
| Guido van Rossum | dc21db3 | 2008-04-07 18:37:41 +0000 | [diff] [blame] | 346 |  | 
| Thomas Heller | f44b9a1 | 2008-04-04 10:18:23 +0000 | [diff] [blame] | 347 | - Issue #2544: On HP-UX systems, use 'gcc -shared' for linking when | 
|  | 348 | gcc is used as compiler. | 
| Barry Warsaw | 66079cd | 2008-04-04 01:36:36 +0000 | [diff] [blame] | 349 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 350 |  | 
| Barry Warsaw | a9d499d | 2008-03-01 18:38:07 +0000 | [diff] [blame] | 351 | What's New in Python 3.0a4? | 
|  | 352 | =========================== | 
|  | 353 |  | 
| Barry Warsaw | bb5cd08 | 2008-04-02 23:33:27 +0000 | [diff] [blame] | 354 | *Release date: 02-Apr-2008* | 
| Barry Warsaw | a9d499d | 2008-03-01 18:38:07 +0000 | [diff] [blame] | 355 |  | 
| Martin v. Löwis | 2593146 | 2008-03-17 20:43:42 +0000 | [diff] [blame] | 356 | Core and Builtins | 
|  | 357 | ----------------- | 
|  | 358 |  | 
|  | 359 | - Bug #2301: Don't try decoding the source code into the original | 
|  | 360 | encoding for syntax errors. | 
|  | 361 |  | 
| Martin v. Löwis | 92fab75 | 2008-03-08 10:40:41 +0000 | [diff] [blame] | 362 | Extension Modules | 
|  | 363 | ----------------- | 
|  | 364 |  | 
| Neal Norwitz | 6cf49cf | 2008-03-24 06:22:57 +0000 | [diff] [blame] | 365 | - The dl module was removed, use the ctypes module instead. | 
|  | 366 |  | 
| Martin v. Löwis | 92fab75 | 2008-03-08 10:40:41 +0000 | [diff] [blame] | 367 | - Use wchar_t functions in _locale module. | 
| Barry Warsaw | a9d499d | 2008-03-01 18:38:07 +0000 | [diff] [blame] | 368 |  | 
| Martin v. Löwis | 071ef77 | 2008-03-08 11:24:24 +0000 | [diff] [blame] | 369 | Library | 
|  | 370 | ------- | 
|  | 371 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 372 | - The class distutils.commands.build_py.build_py_2to3 can be used as a | 
|  | 373 | build_py replacement to automatically run 2to3 on modules that are | 
|  | 374 | going to be installed. | 
| Martin v. Löwis | 73a22f0 | 2008-03-22 00:35:10 +0000 | [diff] [blame] | 375 |  | 
| Guido van Rossum | f416981 | 2008-03-17 22:56:06 +0000 | [diff] [blame] | 376 | - A new pickle protocol (protocol 3) is added with explicit support | 
|  | 377 | for bytes.  This is the default protocol.  It intentionally cannot | 
|  | 378 | be unpickled by Python 2.x. | 
|  | 379 |  | 
|  | 380 | - When a pickle written by Python 2.x contains an (8-bit) str | 
|  | 381 | instance, this is now decoded to a (Unicode) str instance.  The | 
|  | 382 | encoding used to do this defaults to ASCII, but can be overridden | 
|  | 383 | via two new keyword arguments to the Unpickler class.  Previously | 
|  | 384 | this would create bytes instances, which is usually wrong: str | 
|  | 385 | instances are often used to pickle attribute names etc., and text is | 
|  | 386 | more common than binary data anyway. | 
|  | 387 |  | 
| Martin v. Löwis | 071ef77 | 2008-03-08 11:24:24 +0000 | [diff] [blame] | 388 | - Default to ASCII as the locale.getpreferredencoding, if the POSIX | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 389 | system doesn't support CODESET and LANG isn't set or doesn't allow | 
|  | 390 | deduction of an encoding. | 
| Martin v. Löwis | 071ef77 | 2008-03-08 11:24:24 +0000 | [diff] [blame] | 391 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 392 | - Issue #1202: zlib.crc32 and zlib.adler32 now return an unsigned | 
|  | 393 | value. | 
| Gregory P. Smith | 425136b | 2008-03-17 20:45:21 +0000 | [diff] [blame] | 394 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 395 | - Issue #719888: Updated tokenize to use a bytes API.  generate_tokens | 
|  | 396 | has been renamed tokenize and now works with bytes rather than | 
|  | 397 | strings.  A new detect_encoding function has been added for | 
|  | 398 | determining source file encoding according to PEP-0263.  Token | 
|  | 399 | sequences returned by tokenize always start with an ENCODING token | 
|  | 400 | which specifies the encoding used to decode the file.  This token is | 
|  | 401 | used to encode the output of untokenize back to bytes. | 
|  | 402 |  | 
| Barry Warsaw | a9d499d | 2008-03-01 18:38:07 +0000 | [diff] [blame] | 403 |  | 
| Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 404 | What's New in Python 3.0a3? | 
|  | 405 | =========================== | 
|  | 406 |  | 
| Barry Warsaw | 659fc42 | 2008-03-01 17:45:23 +0000 | [diff] [blame] | 407 | *Release date: 29-Feb-2008* | 
| Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 408 |  | 
|  | 409 | Core and Builtins | 
|  | 410 | ----------------- | 
|  | 411 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 412 | - Issue #2282: io.TextIOWrapper was not overriding seekable() from | 
|  | 413 | io.IOBase. | 
| Ka-Ping Yee | ddaa706 | 2008-03-17 20:35:15 +0000 | [diff] [blame] | 414 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 415 | - Issue #2115: Important speedup in setting __slot__ attributes.  Also | 
|  | 416 | prevent a possible crash: an Abstract Base Class would try to access | 
|  | 417 | a slot on a registered virtual subclass. | 
| Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 418 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 419 | - Fixed repr() and str() of complex numbers with infinity or nan as | 
|  | 420 | real or imaginary part. | 
| Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 421 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 422 | - Clear all free list during a gc.collect() of the highest generation | 
|  | 423 | in order to allow pymalloc to free more arenas. Python may give back | 
|  | 424 | memory to the OS earlier. | 
| Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 425 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 426 | - Issue #2045: Fix an infinite recursion triggered when printing a | 
|  | 427 | subclass of collections.defaultdict, if its default_factory is set | 
|  | 428 | to a bound method. | 
| Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 429 |  | 
|  | 430 | - Fixed a minor memory leak in dictobject.c. The content of the free | 
|  | 431 | list was not freed on interpreter shutdown. | 
|  | 432 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 433 | - Limit free list of method and builtin function objects to 256 | 
|  | 434 | entries each. | 
| Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 435 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 436 | - Patch #1953: Added ``sys._compact_freelists()`` and the C API | 
|  | 437 | functions ``PyInt_CompactFreeList`` and ``PyFloat_CompactFreeList`` | 
| Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 438 | to compact the internal free lists of pre-allocted ints and floats. | 
|  | 439 |  | 
|  | 440 | - Bug #1983: Fixed return type of fork(), fork1() and forkpty() calls. | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 441 | Python expected the return type int but the fork familie returns | 
|  | 442 | pi_t. | 
| Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 443 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 444 | - Issue #1678380: Fix a bug that identifies 0j and -0j when they | 
|  | 445 | appear in the same code unit. | 
| Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 446 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 447 | - Issue #2025: Added tuple.count() and tuple.index() methods to comply | 
|  | 448 | with the collections.Sequence API. | 
| Raymond Hettinger | 65baa34 | 2008-02-07 00:41:02 +0000 | [diff] [blame] | 449 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 450 | - Fixed multiple reinitialization of the Python interpreter. The small | 
|  | 451 | int list in longobject.c has caused a seg fault during the third | 
|  | 452 | finalization. | 
| Christian Heimes | dfc12ed | 2008-01-31 15:16:38 +0000 | [diff] [blame] | 453 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 454 | - Issue #1973: bytes.fromhex('') raised SystemError. | 
| Christian Heimes | c04dac0 | 2008-01-30 11:27:57 +0000 | [diff] [blame] | 455 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 456 | - Issue #1771: remove cmp parameter from sorted() and list.sort(). | 
| Raymond Hettinger | 70b64fc | 2008-01-30 20:15:17 +0000 | [diff] [blame] | 457 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 458 | - Issue #1969: split and rsplit in bytearray are inconsistent. | 
| Christian Heimes | 7b87615 | 2008-01-30 09:51:48 +0000 | [diff] [blame] | 459 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 460 | - map() no longer accepts None for the first argument.  Use zip() | 
|  | 461 | instead. | 
| Raymond Hettinger | 1dfde1d | 2008-01-22 23:25:35 +0000 | [diff] [blame] | 462 |  | 
| Facundo Batista | 2336bdd | 2008-01-19 19:12:01 +0000 | [diff] [blame] | 463 | - Issue #1769: Now int("- 1") is not allowed any more. | 
|  | 464 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 465 | - Object/longobject.c: long(float('nan')) raises an OverflowError | 
|  | 466 | instead of returning 0. | 
| Christian Heimes | 386cd1e | 2008-01-15 02:01:20 +0000 | [diff] [blame] | 467 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 468 | - Issue #1762972: __file__ points to the source file instead of the | 
|  | 469 | pyc/pyo file if the py file exists. | 
| Christian Heimes | 3b06e53 | 2008-01-07 20:12:44 +0000 | [diff] [blame] | 470 |  | 
| Guido van Rossum | ab078dd | 2008-01-06 00:09:11 +0000 | [diff] [blame] | 471 | - Issue #1393: object_richcompare() returns NotImplemented instead of | 
|  | 472 | False if the objects aren't equal, to give the other side a chance. | 
|  | 473 |  | 
| Guido van Rossum | e239b00 | 2008-01-06 00:44:20 +0000 | [diff] [blame] | 474 | - Issue #1692: Interpreter was not displaying location of SyntaxError. | 
| Kurt B. Kaiser | 43b1509 | 2008-01-05 04:32:22 +0000 | [diff] [blame] | 475 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 476 | - Improve some exception messages when Windows fails to load an | 
|  | 477 | extension module.  Now we get for example '%1 is not a valid Win32 | 
|  | 478 | application' instead of 'error code 193'.  Also use Unicode strings | 
|  | 479 | to deal with non-English locales. | 
| Amaury Forgeot d'Arc | bccd63c | 2008-01-04 01:21:27 +0000 | [diff] [blame] | 480 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 481 | - Issue #1587: Added instancemethod wrapper for PyCFunctions. The | 
|  | 482 | Python C API has gained a new type *PyInstanceMethod_Type* and the | 
|  | 483 | functions *PyInstanceMethod_Check(o)*, *PyInstanceMethod_New(func)* | 
|  | 484 | and *PyInstanceMethod_Function(im)*. | 
| Christian Heimes | a3534a6 | 2007-12-11 19:56:40 +0000 | [diff] [blame] | 485 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 486 | - Constants gc.DEBUG_OBJECT and gc.DEBUG_INSTANCE have been removed | 
|  | 487 | from the gc module; gc.DEBUG_COLLECTABLE or gc.DEBUG_UNCOLLECTABLE | 
|  | 488 | are now enough to print the corresponding list of objects considered | 
|  | 489 | by the garbage collector. | 
| Amaury Forgeot d'Arc | ad8dcd5 | 2007-12-10 23:58:35 +0000 | [diff] [blame] | 490 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 491 | - Issue #1573: Improper use of the keyword-only syntax makes the | 
|  | 492 | parser crash. | 
| Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 493 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 494 | - Issue #1564: The set implementation should special-case PyUnicode | 
|  | 495 | instead of PyString. | 
| Christian Heimes | 0ded5b5 | 2007-12-10 15:50:56 +0000 | [diff] [blame] | 496 |  | 
| Guido van Rossum | ea6775b | 2008-02-21 20:16:31 +0000 | [diff] [blame] | 497 | - Patch #1031213: Decode source line in SyntaxErrors back to its | 
|  | 498 | original source encoding. | 
| Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 499 |  | 
| Christian Heimes | 09aaa88 | 2008-02-23 15:01:06 +0000 | [diff] [blame] | 500 | - inspect.getsource() includes the decorators again. | 
|  | 501 |  | 
| Guido van Rossum | ea6775b | 2008-02-21 20:16:31 +0000 | [diff] [blame] | 502 | - Bug #1713: posixpath.ismount() claims symlink to a mountpoint is a | 
|  | 503 | mountpoint. | 
| Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 504 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 505 | - Fix utf-8-sig incremental decoder, which didn't recognise a BOM when | 
|  | 506 | the first chunk fed to the decoder started with a BOM, but was | 
|  | 507 | longer than 3 bytes. | 
| Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 508 |  | 
| Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 509 | Extension Modules | 
|  | 510 | ----------------- | 
|  | 511 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 512 | - Code for itertools ifilter(), imap(), and izip() moved to bultins | 
|  | 513 | and renamed to filter(), map(), and zip().  Also, renamed | 
|  | 514 | izip_longest() to zip_longest() and ifilterfalse() to filterfalse(). | 
| Raymond Hettinger | 736c0ab | 2008-03-13 02:09:15 +0000 | [diff] [blame] | 515 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 516 | - Issue #1762972: Readded the reload() function as imp.reload(). | 
| Guido van Rossum | ea6775b | 2008-02-21 20:16:31 +0000 | [diff] [blame] | 517 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 518 | - Bug #2111: mmap segfaults when trying to write a block opened with | 
|  | 519 | PROT_READ. | 
| Christian Heimes | a156e09 | 2008-02-16 07:38:31 +0000 | [diff] [blame] | 520 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 521 | - Issue #2063: correct order of utime and stime in os.times() result | 
|  | 522 | on Windows. | 
| Christian Heimes | 7131fd9 | 2008-02-19 14:21:46 +0000 | [diff] [blame] | 523 |  | 
| Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 524 | Library | 
|  | 525 | ------- | 
|  | 526 |  | 
| Raymond Hettinger | 48b8b66 | 2008-02-05 01:53:00 +0000 | [diff] [blame] | 527 | - Weakref dictionaries now inherit from MutableMapping. | 
| Raymond Hettinger | 48b8b66 | 2008-02-05 01:53:00 +0000 | [diff] [blame] | 528 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 529 | - Created new UserDict class in collections module.  This one inherits | 
|  | 530 | from and complies with the MutableMapping ABC.  Also, moved | 
|  | 531 | UserString and UserList to the collections module.  The | 
|  | 532 | MutableUserString class was removed. | 
| Raymond Hettinger | 48b8b66 | 2008-02-05 01:53:00 +0000 | [diff] [blame] | 533 |  | 
| Guido van Rossum | ea6775b | 2008-02-21 20:16:31 +0000 | [diff] [blame] | 534 | - Removed UserDict.DictMixin.  Replaced all its uses with | 
|  | 535 | collections.MutableMapping. | 
| Raymond Hettinger | edf3b73 | 2008-02-04 22:07:15 +0000 | [diff] [blame] | 536 |  | 
| Guido van Rossum | e239b00 | 2008-01-06 00:44:20 +0000 | [diff] [blame] | 537 | - Issue #1703: getpass() should flush after writing prompt. | 
| Christian Heimes | fc5aa9d | 2007-12-11 09:00:01 +0000 | [diff] [blame] | 538 |  | 
| Guido van Rossum | e239b00 | 2008-01-06 00:44:20 +0000 | [diff] [blame] | 539 | - Issue #1585: IDLE uses non-existent xrange() function. | 
|  | 540 |  | 
|  | 541 | - Issue #1578: Problems in win_getpass. | 
|  | 542 |  | 
| Georg Brandl | 52d168a | 2008-01-07 18:10:24 +0000 | [diff] [blame] | 543 | Build | 
|  | 544 | ----- | 
|  | 545 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 546 | - Renamed --enable-unicode configure flag to --with-wide-unicode, | 
|  | 547 | since Unicode strings can't be disabled anymore. | 
| Georg Brandl | 52d168a | 2008-01-07 18:10:24 +0000 | [diff] [blame] | 548 |  | 
| Guido van Rossum | e239b00 | 2008-01-06 00:44:20 +0000 | [diff] [blame] | 549 | C API | 
|  | 550 | ----- | 
|  | 551 |  | 
|  | 552 | - Issue #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, | 
|  | 553 | Py_TYPE and Py_REFCNT. | 
|  | 554 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 555 | - New API PyImport_ImportModuleNoBlock(), works like | 
|  | 556 | PyImport_ImportModule() but won't block on the import lock | 
|  | 557 | (returning an error instead). | 
| Christian Heimes | 0ec88b3 | 2007-12-10 17:02:00 +0000 | [diff] [blame] | 558 |  | 
| Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 559 |  | 
| Fred Drake | 0e474a8 | 2007-10-11 18:01:43 +0000 | [diff] [blame] | 560 | What's New in Python 3.0a2? | 
| Christian Heimes | bc87341 | 2007-12-08 22:11:32 +0000 | [diff] [blame] | 561 | =========================== | 
| Fred Drake | 0e474a8 | 2007-10-11 18:01:43 +0000 | [diff] [blame] | 562 |  | 
| Guido van Rossum | 99533a9 | 2007-12-06 05:07:41 +0000 | [diff] [blame] | 563 | *Release date: 07-Dec-2007* | 
|  | 564 |  | 
|  | 565 | (Note: this list is incomplete.) | 
| Fred Drake | 0e474a8 | 2007-10-11 18:01:43 +0000 | [diff] [blame] | 566 |  | 
| Guido van Rossum | 40d20bc | 2007-10-22 00:09:51 +0000 | [diff] [blame] | 567 | Core and Builtins | 
|  | 568 | ----------------- | 
|  | 569 |  | 
| Brett Cannon | 37f7e6e | 2007-10-26 05:42:09 +0000 | [diff] [blame] | 570 | - str8 now has the same construction signature as bytes. | 
|  | 571 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 572 | - Comparisons between str and str8 now return False/True for ==/!=. | 
|  | 573 | sqlite3 returns str8 when recreating on object from it's __conform__ | 
|  | 574 | value.  The struct module returns str8 for all string-related | 
|  | 575 | formats.  This was true before this change, but becomes more | 
|  | 576 | apparent thanks to string comparisons always being False. | 
| Brett Cannon | 4043001 | 2007-10-22 20:24:51 +0000 | [diff] [blame] | 577 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 578 | - Replaced `PyFile_FromFile()` with `PyFile_FromFd(fd, name. mode, | 
|  | 579 | buffer, encoding, newline)`. | 
| Guido van Rossum | 40d20bc | 2007-10-22 00:09:51 +0000 | [diff] [blame] | 580 |  | 
|  | 581 | - Fixed `imp.find_module()` to obey the -*- coding: -*- header. | 
|  | 582 |  | 
|  | 583 | - Changed `__file__` and `co_filename` to unicode. The path names are decoded | 
| Antoine Pitrou | 6e1df8d | 2008-07-25 19:58:18 +0000 | [diff] [blame] | 584 | with `Py_FileSystemDefaultEncoding` and a new API method | 
| Guido van Rossum | 40d20bc | 2007-10-22 00:09:51 +0000 | [diff] [blame] | 585 | `PyUnicode_DecodeFSDefault(char*)` was added. | 
|  | 586 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 587 | - io.open() and _fileio.FileIO have grown a new argument closefd. A | 
|  | 588 | false value disables the closing of the file descriptor. | 
| Guido van Rossum | 2dced8b | 2007-10-30 17:27:30 +0000 | [diff] [blame] | 589 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 590 | - Added a new option -b to issues warnings (-bb for errors) about | 
|  | 591 | certain operations between bytes/buffer and str like str(b'') and | 
|  | 592 | comparison. | 
| Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 593 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 594 | - The standards streams sys.stdin, stdout and stderr may be None when | 
|  | 595 | the when the C runtime library returns an invalid file descriptor | 
|  | 596 | for the streams (fileno(stdin) < 0). For now this happens only for | 
|  | 597 | Windows GUI apps and scripts started with `pythonw.exe`. | 
| Christian Heimes | 58cb1b8 | 2007-11-13 02:19:40 +0000 | [diff] [blame] | 598 |  | 
| Christian Heimes | bce52be | 2007-11-17 19:08:41 +0000 | [diff] [blame] | 599 | - Added PCbuild9 directory for VS 2008. | 
|  | 600 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 601 | - Renamed structmember.h WRITE_RESTRICTED to PY_WRITE_RESTRICTED to | 
|  | 602 | work around a name clash with VS 2008 on Windows. | 
| Christian Heimes | bce52be | 2007-11-17 19:08:41 +0000 | [diff] [blame] | 603 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 604 | - Unbound methods are gone for good. ClassObject.method returns an | 
|  | 605 | ordinary function object, instance.method still returns a bound | 
|  | 606 | method object.  The API of bound methods is cleaned up, too. The | 
|  | 607 | im_class attribute is removed and im_func + im_self are renamed to | 
|  | 608 | __func__ and __self__. The factory PyMethod_New takes only func and | 
|  | 609 | instance as argument. | 
| Christian Heimes | ff73795 | 2007-11-27 10:40:20 +0000 | [diff] [blame] | 610 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 611 | - intobject.h is no longer included by Python.h. The remains were | 
|  | 612 | moved to longobject.h. It still exists to define several aliases | 
|  | 613 | from PyInt_ to PyLong_ functions. | 
| Christian Heimes | f78b1c6 | 2007-12-02 16:52:32 +0000 | [diff] [blame] | 614 |  | 
| Christian Heimes | a37d4c6 | 2007-12-04 23:02:19 +0000 | [diff] [blame] | 615 | - Removed sys.maxint, use sys.maxsize instead. | 
|  | 616 |  | 
| Fred Drake | 0e474a8 | 2007-10-11 18:01:43 +0000 | [diff] [blame] | 617 | Extension Modules | 
|  | 618 | ----------------- | 
|  | 619 |  | 
|  | 620 | - The `hotshot` profiler has been removed; use `cProfile` instead. | 
|  | 621 |  | 
| Brett Cannon | e9fd231 | 2007-10-12 19:18:19 +0000 | [diff] [blame] | 622 | Library | 
|  | 623 | ------- | 
|  | 624 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 625 | - When loading an external file using testfile(), the passed-in | 
|  | 626 | encoding argument was being ignored if __loader__ is defined and | 
|  | 627 | forcing the source to be UTF-8. | 
| Brett Cannon | e9fd231 | 2007-10-12 19:18:19 +0000 | [diff] [blame] | 628 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 629 | - The methods `os.tmpnam()`, `os.tempnam()` and `os.tmpfile()` have | 
|  | 630 | been removed in favor of the tempfile module. | 
| Guido van Rossum | 687b9c0 | 2007-10-25 23:18:51 +0000 | [diff] [blame] | 631 |  | 
| Christian Heimes | c9543e4 | 2007-11-28 08:28:28 +0000 | [diff] [blame] | 632 | - Removed the 'new' module. | 
|  | 633 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 634 | - Removed all types from the 'types' module that are easily accessable | 
|  | 635 | through builtins. | 
| Brett Cannon | e9fd231 | 2007-10-12 19:18:19 +0000 | [diff] [blame] | 636 |  | 
| Georg Brandl | 52d168a | 2008-01-07 18:10:24 +0000 | [diff] [blame] | 637 |  | 
| Guido van Rossum | 4405cf3 | 2007-08-30 17:16:55 +0000 | [diff] [blame] | 638 | What's New in Python 3.0a1? | 
| Guido van Rossum | 45aecf4 | 2006-03-15 04:58:47 +0000 | [diff] [blame] | 639 | ========================== | 
| Thomas Wouters | 4d70c3d | 2006-06-08 14:42:34 +0000 | [diff] [blame] | 640 |  | 
| Guido van Rossum | 4405cf3 | 2007-08-30 17:16:55 +0000 | [diff] [blame] | 641 | *Release date: 31-Aug-2007* | 
| Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 642 |  | 
|  | 643 | Core and Builtins | 
|  | 644 | ----------------- | 
|  | 645 |  | 
| Martin v. Löwis | 4738340 | 2007-08-15 07:32:56 +0000 | [diff] [blame] | 646 | - PEP 3131: Support non-ASCII identifiers. | 
|  | 647 |  | 
| Martin v. Löwis | 447d33e | 2007-07-29 18:10:01 +0000 | [diff] [blame] | 648 | - PEP 3120: Change default encoding to UTF-8. | 
|  | 649 |  | 
| Martin v. Löwis | 9f2e346 | 2007-07-21 17:22:18 +0000 | [diff] [blame] | 650 | - PEP 3123: Use proper C inheritance for PyObject. | 
|  | 651 |  | 
| Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 652 | - Removed the __oct__ and __hex__ special methods and added a bin() | 
|  | 653 | builtin function. | 
|  | 654 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 655 | - PEP 3127: octal literals now start with "0o". Old-style octal | 
|  | 656 | literals are invalid. There are binary literals with a prefix of | 
|  | 657 | "0b".  This also affects int(x, 0). | 
| Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 658 |  | 
| Guido van Rossum | e7ba495 | 2007-06-06 23:52:48 +0000 | [diff] [blame] | 659 | - None, True, False are now keywords. | 
|  | 660 |  | 
| Guido van Rossum | 29478ef | 2007-05-29 00:39:44 +0000 | [diff] [blame] | 661 | - PEP 3119: isinstance() and issubclass() can be overridden. | 
|  | 662 |  | 
| Guido van Rossum | ebe3e16 | 2007-05-17 18:20:34 +0000 | [diff] [blame] | 663 | - Remove BaseException.message. | 
|  | 664 |  | 
| Guido van Rossum | 1bc535d | 2007-05-15 18:46:22 +0000 | [diff] [blame] | 665 | - Remove tuple parameter unpacking (PEP 3113). | 
|  | 666 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 667 | - Remove the f_restricted attribute from frames.  This naturally leads | 
|  | 668 | to the removal of PyEval_GetRestricted() and PyFrame_IsRestricted(). | 
| Guido van Rossum | a8add0e | 2007-05-14 22:03:55 +0000 | [diff] [blame] | 669 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 670 | - PEP 3132 was accepted. That means that you can do ``a, *b = | 
|  | 671 | range(5)`` to assign 0 to a and [1, 2, 3, 4] to b. | 
| Guido van Rossum | 0368b72 | 2007-05-11 16:50:42 +0000 | [diff] [blame] | 672 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 673 | - range() now returns an iterator rather than a list.  Floats are not | 
|  | 674 | allowed.  xrange() is no longer defined. | 
| Guido van Rossum | 805365e | 2007-05-07 22:24:25 +0000 | [diff] [blame] | 675 |  | 
| Nick Coghlan | 650f0d0 | 2007-04-15 12:05:43 +0000 | [diff] [blame] | 676 | - Patch #1660500: hide iteration variable in list comps, add set comps | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 677 | and use common code to handle compilation of iterative expressions. | 
| Nick Coghlan | 650f0d0 | 2007-04-15 12:05:43 +0000 | [diff] [blame] | 678 |  | 
| Guido van Rossum | e27dc72 | 2007-03-27 22:37:34 +0000 | [diff] [blame] | 679 | - By default, != returns the opposite of ==, unless the latter returns | 
|  | 680 | NotImplemented. | 
|  | 681 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 682 | - Patch #1680961: sys.exitfunc has been removed and replaced with a | 
|  | 683 | private C-level API. | 
| Collin Winter | 670e692 | 2007-03-21 02:57:17 +0000 | [diff] [blame] | 684 |  | 
| Georg Brandl | 801dd73 | 2007-03-18 20:18:31 +0000 | [diff] [blame] | 685 | - PEP 3115: new metaclasses: the metaclass is now specified as a | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 686 | keyword arg in the class statement, which can now use the full | 
|  | 687 | syntax of a parameter list. Also, the metaclass can implement a | 
|  | 688 | __prepare__ function which will be called to create the dictionary | 
|  | 689 | for the new class namespace. | 
| Georg Brandl | 801dd73 | 2007-03-18 20:18:31 +0000 | [diff] [blame] | 690 |  | 
| Georg Brandl | 428f064 | 2007-03-18 18:35:15 +0000 | [diff] [blame] | 691 | - The long-deprecated argument "pend" of PyFloat_FromString() has been | 
|  | 692 | removed. | 
|  | 693 |  | 
| Georg Brandl | e32b422 | 2007-03-10 22:13:27 +0000 | [diff] [blame] | 694 | - The dir() function has been extended to call the __dir__() method on | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 695 | its argument, if it exists. If not, it will work like before. This | 
|  | 696 | allows customizing the output of dir() in the presence of a | 
|  | 697 | __getattr__(). | 
| Brett Cannon | ba7bf49 | 2007-02-27 00:15:55 +0000 | [diff] [blame] | 698 |  | 
| Neal Norwitz | 8dfc4a9 | 2007-08-11 06:39:53 +0000 | [diff] [blame] | 699 | - Removed support for __members__ and __methods__. | 
|  | 700 |  | 
| Georg Brandl | e32b422 | 2007-03-10 22:13:27 +0000 | [diff] [blame] | 701 | - Removed indexing/slicing on BaseException. | 
| Neal Norwitz | 2633c69 | 2007-02-26 22:22:47 +0000 | [diff] [blame] | 702 |  | 
| Georg Brandl | e32b422 | 2007-03-10 22:13:27 +0000 | [diff] [blame] | 703 | - input() became raw_input(): the name input() now implements the | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 704 | functionality formerly known as raw_input(); the name raw_input() is | 
|  | 705 | no longer defined. | 
| Guido van Rossum | 0240b92 | 2007-02-26 21:23:50 +0000 | [diff] [blame] | 706 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 707 | - Classes listed in an 'except' clause must inherit from | 
|  | 708 | BaseException. | 
| Brett Cannon | f74225d | 2007-02-26 21:10:16 +0000 | [diff] [blame] | 709 |  | 
| Guido van Rossum | cc2b016 | 2007-02-11 06:12:03 +0000 | [diff] [blame] | 710 | - PEP 3106: dict.iterkeys(), .iteritems(), .itervalues() are now gone; | 
| Guido van Rossum | cf1be88 | 2007-08-30 22:07:17 +0000 | [diff] [blame] | 711 | and .keys(), .items(), .values() return dict views, which behave | 
|  | 712 | like sets. | 
| Guido van Rossum | cc2b016 | 2007-02-11 06:12:03 +0000 | [diff] [blame] | 713 |  | 
| Guido van Rossum | 8b54536 | 2007-02-09 23:52:14 +0000 | [diff] [blame] | 714 | - PEP 3105: print is now a function.  Also (not in the PEP) the | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 715 | 'softspace' attribute of files is now gone (since print() doesn't | 
|  | 716 | use it).  A side effect of this change is that you can get | 
|  | 717 | incomplete output lines in interactive sessions: | 
| Guido van Rossum | 8b54536 | 2007-02-09 23:52:14 +0000 | [diff] [blame] | 718 |  | 
|  | 719 | >>> print(42, end="") | 
| Kurt B. Kaiser | 2c7f314 | 2007-08-30 21:52:19 +0000 | [diff] [blame] | 720 | 42>>> | 
| Guido van Rossum | 8b54536 | 2007-02-09 23:52:14 +0000 | [diff] [blame] | 721 |  | 
|  | 722 | We may be able to fix this after the I/O library rewrite. | 
| Guido van Rossum | 4502c80 | 2007-02-09 05:42:38 +0000 | [diff] [blame] | 723 |  | 
| Brett Cannon | 398db8b | 2007-01-29 23:44:37 +0000 | [diff] [blame] | 724 | - PEP 3102: keyword-only arguments. | 
|  | 725 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 726 | - Int/Long unification is complete.  The 'long' built-in type and | 
|  | 727 | literals with trailing 'L' or 'l' have been removed.  Performance | 
|  | 728 | may be sub-optimal (haven't really benchmarked). | 
| Guido van Rossum | ab18684 | 2007-01-14 03:42:30 +0000 | [diff] [blame] | 729 |  | 
|  | 730 | - 'except E, V' must now be spelled as 'except E as V' and deletes V | 
|  | 731 | at the end of the except clause; V must be a simple name. | 
|  | 732 |  | 
| Neal Norwitz | c150536 | 2006-12-28 06:47:50 +0000 | [diff] [blame] | 733 | - Added function annotations per PEP 3107. | 
|  | 734 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 735 | - Added nonlocal declaration from PEP 3104: | 
| Jeremy Hylton | a4f9fc6 | 2007-02-27 15:53:28 +0000 | [diff] [blame] | 736 |  | 
|  | 737 | >>> def f(x): | 
|  | 738 | ...     def inc(): | 
|  | 739 | ...         nonlocal x | 
|  | 740 | ...         x += 1 | 
|  | 741 | ...         return x | 
|  | 742 | ...     return inc | 
|  | 743 | ... | 
|  | 744 | >>> inc = f(0) | 
|  | 745 | >>> inc() | 
|  | 746 | 1 | 
|  | 747 | >>> inc() | 
|  | 748 | 2 | 
|  | 749 |  | 
| Georg Brandl | 66a796e | 2006-12-19 20:50:34 +0000 | [diff] [blame] | 750 | - Moved intern() to sys.intern(). | 
|  | 751 |  | 
|  | 752 | - exec is now a function. | 
|  | 753 |  | 
|  | 754 | - Renamed nb_nonzero to nb_bool and __nonzero__ to __bool__. | 
| Jack Diederich | 4dafcc4 | 2006-11-28 19:15:13 +0000 | [diff] [blame] | 755 |  | 
| Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 756 | - Classic classes are a thing of the past.  All classes are new style. | 
|  | 757 |  | 
|  | 758 | - Exceptions *must* derive from BaseException. | 
|  | 759 |  | 
|  | 760 | - Integer division always returns a float.  The -Q option is no more. | 
|  | 761 | All the following are gone: | 
|  | 762 | * PyNumber_Divide and PyNumber_InPlaceDivide | 
|  | 763 | * __div__, __rdiv__, and __idiv__ | 
|  | 764 | * nb_divide, nb_inplace_divide | 
|  | 765 | * operator.div, operator.idiv, operator.__div__, operator.__idiv__ | 
|  | 766 | (Only __truediv__ and __floordiv__ remain, not sure how to handle them | 
|  | 767 | if we want to re-use __div__ and friends.  If we do, it will make | 
|  | 768 | it harder to write code for both 2.x and 3.x.) | 
|  | 769 |  | 
|  | 770 | - 'as' and 'with' are keywords. | 
|  | 771 |  | 
|  | 772 | - Absolute import is the default behavior for 'import foo' etc. | 
|  | 773 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 774 | - Removed support for syntax: backticks (ie, `x`), <>. | 
| Neal Norwitz | 378b2c9 | 2006-08-29 07:57:22 +0000 | [diff] [blame] | 775 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 776 | - Removed these Python builtins: apply(), callable(), coerce(), | 
|  | 777 | execfile(), file(), reduce(), reload(). | 
| Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 778 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 779 | - Removed these Python methods: {}.has_key. | 
| Neal Norwitz | 378b2c9 | 2006-08-29 07:57:22 +0000 | [diff] [blame] | 780 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 781 | - Removed these opcodes: BINARY_DIVIDE, INPLACE_DIVIDE, UNARY_CONVERT. | 
| Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 782 |  | 
|  | 783 | - Remove C API support for restricted execution. | 
|  | 784 |  | 
| Guido van Rossum | cf1be88 | 2007-08-30 22:07:17 +0000 | [diff] [blame] | 785 | - zip(), map() and filter() now return iterators, behaving like their | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 786 | itertools counterparts.  This also affect map()'s behavior on | 
| Guido van Rossum | cf1be88 | 2007-08-30 22:07:17 +0000 | [diff] [blame] | 787 | sequences of unequal length -- it now stops after the shortest one | 
|  | 788 | is exhausted. | 
| Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 789 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 790 | - Additions: set literals, set comprehensions, ellipsis literal. | 
| Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 791 |  | 
|  | 792 | - Added class decorators per PEP 3129. | 
|  | 793 |  | 
|  | 794 |  | 
|  | 795 | Extension Modules | 
|  | 796 | ----------------- | 
|  | 797 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 798 | - Removed the imageop module.  Obsolete long with its unit tests | 
|  | 799 | becoming useless from the removal of rgbimg and imgfile. | 
| Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 800 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 801 | - Removed these attributes from the operator module: div, idiv, | 
|  | 802 | __div__, __idiv__, isCallable, sequenceIncludes. | 
|  | 803 |  | 
|  | 804 | - Removed these attributes from the sys module: exc_clear(), exc_type, | 
|  | 805 | exc_value, exc_traceback. | 
| Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 806 |  | 
|  | 807 |  | 
|  | 808 | Library | 
|  | 809 | ------- | 
|  | 810 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 811 | - Removed the compiler package.  Use of the _ast module and (an | 
|  | 812 | eventual) AST -> bytecode mechanism. | 
| Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 813 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 814 | - Removed these modules: audiodev, Bastion, bsddb185, exceptions, | 
|  | 815 | linuxaudiodev, md5, MimeWriter, mimify, popen2, rexec, sets, sha, | 
|  | 816 | stringold, strop, sunaudiodev, timing, xmllib. | 
| Guido van Rossum | 33d2689 | 2007-08-05 15:29:28 +0000 | [diff] [blame] | 817 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 818 | - Moved the toaiff module to Tools/Demos. | 
| Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 819 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 820 | - Removed obsolete IRIX modules: al/AL, cd/CD, cddb, cdplayer, cl/CL, | 
|  | 821 | DEVICE, ERRNO, FILE, fl/FL, flp, fm, GET, gl/GL, GLWS, IN, imgfile, | 
|  | 822 | IOCTL, jpeg, panel, panelparser, readcd, sgi, sv/SV, torgb, WAIT. | 
| Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 823 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 824 | - Removed obsolete functions: commands.getstatus(), os.popen*(). | 
| Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 825 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 826 | - Removed functions in the string module that are also string methods; | 
| Martin v. Löwis | 967f1e3 | 2007-08-14 09:23:10 +0000 | [diff] [blame] | 827 | Remove string.{letters, lowercase, uppercase}. | 
| Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 828 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 829 | - Removed support for long obsolete platforms: plat-aix3, plat-irix5. | 
| Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 830 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 831 | - Removed xmlrpclib.SlowParser.  It was based on xmllib. | 
| Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 832 |  | 
|  | 833 | - Patch #1680961: atexit has been reimplemented in C. | 
|  | 834 |  | 
| Walter Dörwald | 41980ca | 2007-08-16 21:55:45 +0000 | [diff] [blame] | 835 | - Add new codecs for UTF-32, UTF-32-LE and UTF-32-BE. | 
|  | 836 |  | 
| Guido van Rossum | d59da4b | 2007-05-22 18:11:13 +0000 | [diff] [blame] | 837 | Build | 
|  | 838 | ----- | 
|  | 839 |  | 
|  | 840 | C API | 
|  | 841 | ----- | 
|  | 842 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 843 | - Removed these Python slots: __coerce__, __div__, __idiv__, __rdiv__. | 
| Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 844 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 845 | - Removed these C APIs: PyNumber_Coerce(), PyNumber_CoerceEx(), | 
|  | 846 | PyMember_Get, PyMember_Set. | 
| Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 847 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 848 | - Removed these C slots/fields: nb_divide, nb_inplace_divide. | 
| Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 849 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 850 | - Removed these macros: staticforward, statichere, PyArg_GetInt, | 
|  | 851 | PyArg_NoArgs, _PyObject_Del. | 
| Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 852 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 853 | - Removed these typedefs: intargfunc, intintargfunc, intobjargproc, | 
|  | 854 | intintobjargproc, getreadbufferproc, getwritebufferproc, | 
|  | 855 | getsegcountproc, getcharbufferproc, memberlist. | 
| Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 856 |  | 
| Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 857 | Tests | 
|  | 858 | ----- | 
|  | 859 |  | 
| Brett Cannon | e7a30f7 | 2008-03-03 03:36:27 +0000 | [diff] [blame] | 860 | - Removed test.testall as test.regrtest replaces it. | 
|  | 861 |  | 
| Brett Cannon | ced04e0 | 2005-02-13 22:53:22 +0000 | [diff] [blame] | 862 | Documentation | 
|  | 863 | ------------- | 
|  | 864 |  | 
| Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 865 | Mac | 
|  | 866 | --- | 
|  | 867 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 868 | - The cfmfile module was removed. | 
| Guido van Rossum | e7ba495 | 2007-06-06 23:52:48 +0000 | [diff] [blame] | 869 |  | 
| Guido van Rossum | 845702c | 2007-08-30 18:44:53 +0000 | [diff] [blame] | 870 | Platforms | 
|  | 871 | --------- | 
|  | 872 |  | 
|  | 873 | - Support for BeOS and AtheOS was removed (according to PEP 11). | 
|  | 874 |  | 
|  | 875 | - Support for RiscOS, Irix, Tru64 was removed (alledgedly). | 
|  | 876 |  | 
| Raymond Hettinger | 4901a1f | 2004-12-02 08:59:14 +0000 | [diff] [blame] | 877 | Tools/Demos | 
|  | 878 | ----------- | 
|  | 879 |  | 
| Georg Brandl | 52b92cc | 2008-05-25 09:43:03 +0000 | [diff] [blame] | 880 |  | 
| Skip Montanaro | e5d7f7f | 2002-09-20 14:16:59 +0000 | [diff] [blame] | 881 | **(For information about older versions, consult the HISTORY file.)** |