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GeezerVison is showing github.com — cpython/Misc/NEWS at v2.6.9 · python/cpython Expand file tree/ Copy pathNEWSMore file actions 5128 lines (3406 loc) · 180 KB / Copy pathNEWSFile metadata and controls5128 lines (3406 loc) · 180 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 +++++++++++ Python News +++++++++++ What's New in Python 2.6.9? =========================== *Release date: 2013-10-29* No changes since 2.6.9rc1. What's New in Python 2.6.9 rc 1? ================================ *Release date: 2013-09-30* Core and Builtins ----------------- Library ------- - Issue #16042: CVE-2013-1752: smtplib: Limit amount of data read by limiting the call to readline(). Original patch by Christian Heimes. - Issue #16041: CVE-2013-1752: poplib: Limit maximum line lengths to 2048 to prevent readline() calls from consuming too much memory. Patch by Jyrki Pulliainen. - Issue #16040: CVE-2013-1752: nntplib: Limit maximum line lengths to 2048 to prevent readline() calls from consuming too much memory. Patch by Jyrki Pulliainen. - Issue #16039: CVE-2013-1752: Change use of readline in imaplib module to limit line length. Patch by Emil Lind. - Issue #16038: CVE-2013-1752: ftplib: Limit amount of data read by limiting the call to readline(). Original patch by Michał Jastrzębski and Giampaolo Rodola. - Issue #16037: HTTPMessage.readheaders() raises an HTTPException when more than 100 headers are read. Adapted from patch by Jyrki Pulliainen. - Issue #14984: On POSIX systems, when netrc is called without a filename argument (and therefore is reading the user's $HOME/.netrc file), it now enforces the same security rules as typical ftp clients: the .netrc file must be owned by the user that owns the process and must not be readable by any other user. - Issue #16248: Disable code execution from the user's home directory by tkinter when the -E flag is passed to Python. Patch by Zachary Ware. Extension Modules ----------------- - Issue #18709: Fix CVE-2013-4238. The SSL module now handles NULL bytes inside subjectAltName correctly. Formerly the module has used OpenSSL's GENERAL_NAME_print() function to get the string represention of ASN.1 strings for `rfc822Name` (email), `dNSName` (DNS) and `uniformResourceIdentifier` (URI). What's New in Python 2.6.8? =========================== *Release date: 2012-04-10* No changes since 2.6.8rc2. What's New in Python 2.6.8 rc 2? ================================ *Release date: 2012-03-17* Library ------- - Issue #14234: CVE-2012-0876: Randomize hashes of xml attributes in the hash table internal to the pyexpat module's copy of the expat library to avoid a denial of service due to hash collisions. Patch by David Malcolm with some modifications by the expat project. What's New in Python 2.6.8 rc 1? ================================ *Release date: 2012-02-23* Core and Builtins ----------------- - Issue #13703: oCERT-2011-003 CVE-2012-1150: add -R command-line option and PYTHONHASHSEED environment variable, to provide an opt-in way to protect against denial of service attacks due to hash collisions within the dict and set types. Patch by David Malcolm, based on work by Victor Stinner. Library ------- - Issue #14001: CVE-2012-0845: xmlrpc: Fix an endless loop in SimpleXMLRPCServer upon malformed POST request. - Issue #13885: CVE-2011-3389: the _ssl module would always disable the CBC IV attack countermeasure. What's New in Python 2.6.7? =========================== *Release date: 2011-06-03* *NOTE: Python 2.6 is in security-fix-only mode. No non-security bug fixes are allowed. Python 2.6.7 and beyond will be source only releases.* * No changes since 2.6.7rc2. What's New in Python 2.6.7 rc 2? ================================ *Release date: 2011-05-20* *NOTE: Python 2.6 is in security-fix-only mode. No non-security bug fixes are allowed. Python 2.6.7 and beyond will be source only releases.* Library ------- - Issue #11662: Make urllib and urllib2 ignore redirections if the scheme is not HTTP, HTTPS or FTP (CVE-2011-1521). - Issue #11442: Add a charset parameter to the Content-type in SimpleHTTPServer to avoid XSS attacks. What's New in Python 2.6.7 rc 1? ================================ *Release date: 2011-05-06* Library ------- - Issue #9129: smtpd.py is vulnerable to DoS attacks deriving from missing error handling when accepting a new connection. What's New in Python 2.6.6? =========================== *Release date: 2010-08-24* * No changes since 2.6.6rc2. What's New in Python 2.6.6 rc 2? ================================ *Release date: 2010-08-16* Library ------- - Issue #9600: Don't use relative import for _multiprocessing on Windows. - Issue #8688: Revert regression introduced in 2.6.6rc1 (making Distutils recalculate MANIFEST every time). - Issue #5798: Handle select.poll flag oddities properly on OS X. This fixes test_asynchat and test_smtplib failures on OS X. - Issue #9543: Fix regression in socket.py introduced in Python 2.6.6 rc 1 in r83624. Extension Modules ----------------- - Issue #7567: Don't call `setupterm' twice. Tests ----- - Issue #9568: Fix test_urllib2_localnet on OS X 10.3. - Issue #9145: Fix test_coercion failure in refleak runs. - Issue #8433: Fix test_curses failure caused by newer versions of ncurses returning ERR from getmouse() when there are no mouse events available. What's New in Python 2.6.6 rc 1? ================================ *Release date: 2010-08-03* Core and Builtins ----------------- - Issue #6213: Implement getstate() and setstate() methods of utf-8-sig and utf-16 incremental encoders. - Issue #8271: during the decoding of an invalid UTF-8 byte sequence, only the start byte and the continuation byte(s) are now considered invalid, instead of the number of bytes specified by the start byte. E.g.: '\xf1\x80AB'.decode('utf-8', 'replace') now returns u'\ufffdAB' and replaces with U+FFFD only the start byte ('\xf1') and the continuation byte ('\x80') even if '\xf1' is the start byte of a 4-bytes sequence. Previous versions returned a single u'\ufffd'. - Issue #9058: Remove assertions about INT_MAX in UnicodeDecodeError. - Issue #8941: decoding big endian UTF-32 data in UCS-2 builds could crash the interpreter with characters outside the Basic Multilingual Plane (higher than 0x10000). - Issue #8627: Remove bogus "Overriding __cmp__ blocks inheritance of __hash__ in 3.x" warning. Also fix "XXX undetected error" that arises from the "Overriding __eq__ blocks inheritance ..." warning when turned into an exception: in this case the exception simply gets ignored. - Issue #4108: In urllib.robotparser, if there are multiple 'User-agent: *' entries, consider the first one. - Issue #9354: Provide getsockopt() in asyncore's file_wrapper. - In the unicode/str.format(), raise a ValueError when indexes to arguments are too large. - Issue #3798: Write sys.exit() message to sys.stderr to use stderr encoding and error handler, instead of writing to the C stderr file in utf-8 - Issue #7902: When using explicit relative import syntax, don't try implicit relative import semantics. - Issue #7079: Fix a possible crash when closing a file object while using it from another thread. Patch by Daniel Stutzbach. - Issue #1533: fix inconsistency in range function argument processing: any non-float non-integer argument is now converted to an integer (if possible) using its __int__ method. Previously, only small arguments were treated this way; larger arguments (those whose __int__ was outside the range of a C long) would produce a TypeError. - Issue #8417: Raise an OverflowError when an integer larger than sys.maxsize is passed to bytearray. - Issue #8329: Don't return the same lists from select.select when no fds are changed. - Raise a TypeError when trying to delete a T_STRING_INPLACE struct member. - Issue #1583863: An unicode subclass can now override the __unicode__ method. - Issue #7507: Quote "!" in pipes.quote(); it is special to some shells. - Issue #7544: Preallocate thread memory before creating the thread to avoid a fatal error in low memory condition. - Issue #7820: The parser tokenizer restores all bytes in the right if the BOM check fails. - Issue #7072: isspace(0xa0) is true on Mac OS X C-API ----- - Issue #5753: A new C API function, :cfunc:`PySys_SetArgvEx`, allows embedders of the interpreter to set sys.argv without also modifying sys.path. This helps fix `CVE-2008-5983 <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5983>`_. Library ------- - Issue #8447: Make distutils.sysconfig follow symlinks in the path to the interpreter executable. This fixes a failure of test_httpservers on OS X. - Issue #7092: Fix the DeprecationWarnings emitted by the standard library when using the -3 flag. Patch by Florent Xicluna. - Issue #7395: Fix tracebacks in pstats interactive browser. - Issue #1713: Fix os.path.ismount(), which returned true for symbolic links across devices. - Issue #8826: Properly load old-style "expires" attribute in http.cookies. - Issue #1690103: Fix initial namespace for code run with trace.main(). - Issue #5294: Fix the behavior of pdb's "continue" command when called in the top-level debugged frame. - Issue #5727: Restore the ability to use readline when calling into pdb in doctests. - Issue #6719: In pdb, do not stop somewhere in the encodings machinery if the source file to be debugged is in a non-builtin encoding. - Issue #8048: Prevent doctests from failing when sys.displayhook has been reassigned. - Issue #8015: In pdb, do not crash when an empty line is entered as a breakpoint command. - Issue #7909: Do not touch paths with the special prefixes ``\\.\`` or ``\\?\`` in ntpath.normpath(). - Issue #5146: Handle UID THREAD command correctly in imaplib. - Issue #5147: Fix the header generated for cookie files written by http.cookiejar.MozillaCookieJar. - Issue #8198: In pydoc, output all help text to the correct stream when sys.stdout is reassigned. - Issue #1019882: Fix IndexError when loading certain hotshot stats. - Issue #8471: In doctest, properly reset the output stream to an empty string when Unicode was previously output. - Issue #8397: Raise an error when attempting to mix iteration and regular reads on a BZ2File object, rather than returning incorrect results. - Issue #8620: when a Cmd is fed input that reaches EOF without a final newline, it no longer truncates the last character of the last command line. - Issue #7066: archive_util.make_archive now restores the cwd if an error is raised. Initial patch by Ezio Melotti. - Issue #5006: Better handling of unicode byte-order marks (BOM) in the io library. This means, for example, that opening an UTF-16 text file in append mode doesn't add a BOM at the end of the file if the file isn't empty. - Issue #3704: cookielib was not properly handling URLs with a / in the parameters. - Issue #4629: getopt raises an error if an argument ends with = whereas getopt doesn't except a value (eg. --help= is rejected if getopt uses ['help='] long options). - Issue #7895: platform.mac_ver() no longer crashes after calling os.fork() - Issue #5395: array.fromfile() would raise a spurious EOFError when an I/O error occurred. Now an IOError is raised instead. Patch by chuck (Jan Hosang). - Issue #1555570: email no longer inserts extra blank lines when a \r\n combo crosses an 8192 byte boundary. - Issue #9164: Ensure sysconfig handles dupblice archs while building on OSX - Issue #7646: The fnmatch pattern cache no longer grows without bound. - Issue #9136: Fix 'dictionary changed size during iteration' RuntimeError produced when profiling the decimal module. This was due to a dangerous iteration over 'locals()' in Context.__init__. - Fix extreme speed issue in Decimal.pow when the base is an exact power of 10 and the exponent is tiny (for example, Decimal(10) ** Decimal('1e-999999999')). - Issue #9130: Fix validation of relative imports in parser module. - Issue #9128: Fix validation of class decorators in parser module. - Issue #7673: Fix security vulnerability (CVE-2010-2089) in the audioop module, ensure that the input string length is a multiple of the frame size - Issue #6589: cleanup asyncore.socket_map in case smtpd.SMTPServer constructor raises an exception. - Issue #9125: Add recognition of 'except ... as ...' syntax to parser module. - Issue #9085: email package version number bumped to its correct value of 4.0.2 (same as it was in 2.5). - Issue #9075: In the ssl module, remove the setting of a ``debug`` flag on an OpenSSL structure. - Issue #5610: feedparser no longer eats extra characters at the end of a body part if the body part ends with a \r\n. - Issue #8924: logging: Improved error handling for Unicode in exception text. - Fix codecs.escape_encode to return the correct consumed size. - Issue #6470: Drop UNC prefix in FixTk. - Issue #8833: tarfile created hard link entries with a size field != 0 by mistake. - Issue #1368247: set_charset (and therefore MIMEText) now automatically encodes a unicode _payload to the output_charset. - Issue #7150: Raise OverflowError if the result of adding or subtracting timedelta from date or datetime falls outside of the MINYEAR:MAXYEAR range. - Issue #6662: Fix parsing of malformatted charref (&#bad;), patch written by Fredrik Håård - Issue #1628205: Socket file objects returned by socket.socket.makefile() now properly handles EINTR within the read, readline, write & flush methods. The socket.sendall() method now properly handles interrupted system calls. - Issue #3924: Ignore cookies with invalid "version" field in cookielib. - Issue #6268: Fix seek() method of codecs.open(), don't read or write the BOM twice after seek(0). Fix also reset() method of codecs, UTF-16, UTF-32 and StreamWriter classes. - Issue #5640: Fix Shift-JIS incremental encoder for error handlers different than strict - Issue #8782: Add a trailing newline in linecache.updatecache to the last line of files without one. - Issue #8729: Return NotImplemented from collections.Mapping.__eq__ when comparing to a non-mapping. - Issue #5918: Fix a crash in the parser module. - Issue #8688: Distutils now recalculates MANIFEST everytime. - Issue #7640: In the new `io` module, fix relative seek() for buffered readable streams when the internal buffer isn't empty. Patch by Pascal Chambon. - Issue #5099: subprocess.Popen.__del__ no longer references global objects, leading to issues during interpreter shutdown. - Issue #8681: Make the zlib module's error messages more informative when the zlib itself doesn't give any detailed explanation. - Issue #8674: Fixed a number of incorrect or undefined-behaviour-inducing overflow checks in the audioop module. - Issue #8571: Fix an internal error when compressing or decompressing a chunk larger than 1GB with the zlib module's compressor and decompressor objects. - Issue #8573: asyncore _strerror() function might throw ValueError. - Issue #8483: asyncore.dispatcher's __getattr__ method produced confusing error messages when accessing undefined class attributes because of the cheap inheritance with the underlying socket object. - Issue #4265: shutil.copyfile() was leaking file descriptors when disk fills. Patch by Tres Seaver. - Issue #8621: uuid.uuid4() returned the same sequence of values in the parent and any children created using ``os.fork`` on MacOS X 10.6. - Issue #8313: traceback.format_exception_only() encodes unicode message to ASCII with backslashreplace error handler if str(value) failed - Issue #8567: Fix precedence of signals in Decimal module: when a Decimal operation raises multiple signals and more than one of those signals is trapped, the specification determines the order in which the signals should be handled. In many cases this order wasn't being followed, leading to the wrong Python exception being raised. - Issue #7865: The close() method of :mod:`io` objects should not swallow exceptions raised by the implicit flush(). Also ensure that calling close() several times is supported. Initial patch by Pascal Chambon. - Issue #8581: logging: removed errors raised when closing handlers twice. - Issue #4687: Fix accuracy of garbage collection runtimes displayed with gc.DEBUG_STATS. - Issue #8354: The siginterrupt setting is now preserved for all signals, not just SIGCHLD. - Issue #8577: distutils.sysconfig.get_python_inc() now makes a difference between the build dir and the source dir when looking for "python.h" or "Include". - Issue #8464: tarfile no longer creates files with execute permissions set when mode="w|" is used. - Issue #7834: Fix connect() of Bluetooth L2CAP sockets with recent versions of the Linux kernel. Patch by Yaniv Aknin. - Issue #6312: Fixed http HEAD request when the transfer encoding is chunked. It should correctly return an empty response now. - Issue #8086: In :func:`ssl.DER_cert_to_PEM_cert()`, fix missing newline before the certificate footer. Patch by Kyle VanderBeek. - Issue #8549: Fix compiling the _ssl extension under AIX. Patch by Sridhar Ratnakumar. - Issue #2302: Fix a race condition in SocketServer.BaseServer.shutdown, where the method could block indefinitely if called just before the event loop started running. This also fixes the occasional freezes witnessed in test_httpservers. - Issue #5103: SSL handshake would ignore the socket timeout and block indefinitely if the other end didn't respond. - The do_handshake() method of SSL objects now adjusts the blocking mode of the SSL structure if necessary (as other methods already do). - Issue #5238: Calling makefile() on an SSL object would prevent the underlying socket from being closed until all objects get truely destroyed. - Issue #7943: Fix circular reference created when instantiating an SSL socket. Initial patch by Péter Szabó. - Issue #8108: Fix the unwrap() method of SSL objects when the socket has a non-infinite timeout. Also make that method friendlier with applications wanting to continue using the socket in clear-text mode, by disabling OpenSSL's internal readahead. Thanks to Darryl Miles for guidance. - Issue #8484: Load all ciphers and digest algorithms when initializing the _ssl extension, such that verification of some SSL certificates doesn't fail because of an "unknown algorithm". - Issue #4814: timeout parameter is now applied also for connections resulting from PORT/EPRT commands. - Issue #3817: ftplib.FTP.abort() method now considers 225 a valid response code as stated in RFC-959 at chapter 5.4. - Issue #5277: Fix quote counting when parsing RFC 2231 encoded parameters. - Issue #8179: Fix macpath.realpath() on a non-existing path. - Issue #8310: Allow dis to examine new style classes. - Issue #7667: Fix doctest failures with non-ASCII paths. - Issue #7624: Fix isinstance(foo(), collections.Callable) for old-style classes. - Issue #7512: shutil.copystat() could raise an OSError when the filesystem didn't support chflags() (for example ZFS under FreeBSD). The error is now silenced. - Issue #3890, #8222: Fix recv() and recv_into() on non-blocking SSL sockets. Also, enable the SSL_MODE_AUTO_RETRY flag on SSL sockets, so that blocking reads and writes are always retried by OpenSSL itself. - Issue #6544: fix a reference leak in the kqueue implementation's error handling. - Issue #7774: Set sys.executable to an empty string if argv[0] has been set to an non existent program name and Python is unable to retrieve the real program name - Issue #6906: Tk should not set Unicode environment variables on Windows. - Issue #1054943: Fix unicodedata.normalize('NFC', text) for the Public Review Issue #29 - Issue #7494: fix a crash in _lsprof (cProfile) after clearing the profiler, reset also the pointer to the current pointer context. - Issue #4961: Inconsistent/wrong result of askyesno function in tkMessageBox with Tcl/Tk-8.5. - Issue #7356: ctypes.util: Make parsing of ldconfig output independent of the locale. Extension Modules ----------------- - Fix memory leak in ssl._ssl._test_decode_cert. - Issue #9422: Fix memory leak when re-initializing a struct.Struct object. - Issue #7900: The getgroups(2) system call on MacOSX behaves rather oddly compared to other unix systems. In particular, os.getgroups() does not reflect any changes made using os.setgroups() but basicly always returns the same information as the id command. os.getgroups() can now return more than 16 groups on MacOSX. - Issue #9277: Fix bug in struct.pack for bools in standard mode (e.g., struct.pack('>?')): if conversion to bool raised an exception then that exception wasn't properly propagated on machines where char is unsigned. - Issue #7384: If the system readline library is linked against ncurses, do not link the readline module against ncursesw. The additional restriction of linking the readline and curses modules against the same curses library is currently not enabled. - Issue #2810: Fix cases where the Windows registry API returns ERROR_MORE_DATA, requiring a re-try in order to get the complete result. Build ----- - Issue #8854: Fix finding Visual Studio 2008 on Windows x64. - Issue #3928: os.mknod() now available in Solaris, also. - Issue #8175: --with-universal-archs=all works correctly on OSX 10.5 - Issue #6716: Quote -x arguments of compileall in MSI installer. - Issue #1628484: The Makefile doesn't ignore the CFLAGS environment variable anymore. It also forwards the LDFLAGS settings to the linker when building a shared library. Tests ----- - Issue #7849: Now the utility ``check_warnings`` verifies if the warnings are effectively raised. A new private utility ``_check_py3k_warnings`` has been backported to help silencing py3k warnings. - Issue #8672: Add a zlib test ensuring that an incomplete stream can be handled by a decompressor object without errors (it returns incomplete uncompressed data). - Issue #8629: Disable some test_ssl tests, since they give different results with OpenSSL 1.0.0 and higher. - Issue #8576: Remove use of find_unused_port() in test_smtplib and test_multiprocessing. Patch by Paul Moore. - Issue #7027: regrtest.py keeps a reference to the encodings.ascii module as a workaround to #7140 bug - Issue #3864: Skip three test_signal tests on freebsd6 because they fail if any thread was previously started, most likely due to a platform bug. - Issue #8193: Fix test_zlib failure with zlib 1.2.4. Documentation ------------- - Issue #9255: Document that the 'test' package is for internal Python use only. - Issue #8909: Added the size of the bitmap used in the installer created by distutils' bdist_wininst. Patch by Anatoly Techtonik. What's New in Python 2.6.5? =========================== *Release date: 2010-03-18* What's New in Python 2.6.5 rc 2? ================================ *Release date: 2010-03-09* Core and Builtins ----------------- - Issue #8089: a OS X framework build with --with-universal-archs=3-way|intel had no way to select a 32-bit executable. - Issue #8084: fixes build issues on OSX 10.6 when targetting OSX 10.4. Library ------- - Reverting the changes made in r78432. Discussed in the tracker issue #7540. - Issue #8107: Fixed test_distutils so it doesn't crash when the source directory cannot be found. Extension Modules ----------------- - Issue #7670: sqlite3: Fixed crashes when operating on closed connections. - Issue #8053: logic was inverted on which platforms to run a test on. caused test_thread to fail on Windows. What's New in Python 2.6.5 rc 1? ================================ *Release date: 2010-03-01* Core and Builtins ----------------- - Issue #7309: Fix unchecked attribute access when converting UnicodeEncodeError, UnicodeDecodeError, and UnicodeTranslateError to strings. - Issue #7649: "u'%c' % char" now behaves like "u'%s' % char" and raises a UnicodeDecodeError if 'char' is a byte string that can't be decoded using the default encoding. - Issue #5677: Explicitly forbid write operations on read-only file objects, and read operations on write-only file objects. On Windows, the system C library would return a bogus result; on Solaris, it was possible to crash the interpreter. Patch by Stefan Krah. - Issue #4978: Passing keyword arguments as unicode strings is now allowed. - Issue #7819: Check sys.call_tracing() arguments types. - Issue #7788: Fix an interpreter crash produced by deleting a list slice with very large step value. - Issue #7561: Operations on empty bytearrays (such as `int(bytearray())`) could crash in many places because of the PyByteArray_AS_STRING() macro returning NULL. The macro now returns a statically allocated empty string instead. - Issue #7604: Deleting an unset slotted attribute did not raise an AttributeError. - Issue #7413: Passing '\0' as the separator to datetime.datetime.isoformat() used to drop the time part of the result. - Issue #6108: unicode(exception) and str(exception) should return the same message when only __str__ (and not __unicode__) is overridden in the subclass. - Issue #7491: Metaclass's __cmp__ method was ignored. - Add Py3k warnings for parameter names in parenthesis. - Issue #7362: Give a proper error message for def f((x)=3): pass. - Issue #7085: Fix crash when importing some extensions in a thread on MacOSX 10.6. - Issue #7070: Fix round bug for large odd integer arguments. - Issue #7078: Set struct.__doc__ from _struct.__doc__. - Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which fixes the problem of some exceptions being thrown at shutdown when the interpreter is killed. Patch by Adam Olsen. - Issue #7084: Fix a (very unlikely) crash when printing a list from one thread, and mutating it from another one. Patch by Scott Dial. - Issue #1747858: Fix lchown & fchown to work with large uid's and gid's on 64-bit platforms. Library ------- - Issue #7250: Fix info leak of os.environ across multi-run uses of wsgiref.handlers.CGIHandler. - Issue #1729305: Fix doctest to handle encode error with "backslashreplace". - Issue #691291: codecs.open() should not convert end of lines on reading and writing. - Issue #7975: correct regression in dict methods supported by bsddb.dbshelve. - Issue #7959: ctypes callback functions are now registered correctly with the cycle garbage collector. - Issue #6243: curses.getkey() can segfault when used with ungetch. Fix by Trundle and Jerry Chen. - Issue #7597: curses.use_env() can now be called before initscr(). Noted by Kan-Ru Chen. - Issue #7970: email.Generator.flatten now correctly flattens message/rfc822 messages parsed by email.Parser.HeaderParser. - Issue #3426: ``os.path.abspath`` now returns unicode when its arg is unicode. - Issue #7835: shelve should no longer produce mysterious warnings during interpreter shutdown. - Issue #4772: Raise a ValueError when an unknown Bluetooth protocol is specified, rather than fall through to AF_PACKET (in the `socket` module). Also, raise ValueError rather than TypeError when an unknown TIPC address type is specified. Patch by Brian Curtin. - Issue #6939: Fix file I/O objects in the `io` module to keep the original file position when calling `truncate()`. It would previously change the file position to the given argument, which goes against the tradition of ftruncate() and other truncation APIs. Patch by Pascal Chambon. - Issue #7773: Fix an UnboundLocalError in platform.linux_distribution() when the release file is empty. - Issue #7748: Since unicode values are supported for some metadata options in Distutils, the DistributionMetadata get_* methods will now return an utf-8 encoded string for them. This ensure that the upload and register commands send the right values to PyPI without any error. - Issue #1670765: Prevent email.generator.Generator from re-wrapping headers in multipart/signed MIME parts, which fixes one of the sources of invalid modifications to such parts by Generator. - Issue #7701: Fix crash in binascii.b2a_uu() in debug mode when given a 1-byte argument. Patch by Victor Stinner. - Issue #3299: Fix possible crash in the _sre module when given bad argument values in debug mode. Patch by Victor Stinner. - Issue #5827: Make sure that normpath preserves unicode. Initial patch by Matt Giuca. - Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since Extension extra options may change the output without changing the .c file). Initial patch by Collin Winter. - Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes gcc when it has a fully qualified configuration prefix. Initial patch by Arfrever. - Issue #7071: byte-compilation in Distutils is now done with respect to sys.dont_write_bytecode. - Issue #7092: Remove py3k warning when importing cPickle. 2to3 handles renaming of `cPickle` to `pickle`. The warning was annoying since there's no alternative to cPickle if you care about performance. Patch by Florent Xicluna. - Issue #7455: Fix possible crash in cPickle on invalid input. Patch by Victor Stinner. - Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when opening an empty or very small file. - Issue #7552: Removed line feed in the base64 Authorization header in the Distutils upload command to avoid an error when PyPI reads it. This occurs on long passwords. Initial patch by JP St. Pierre. - Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by Tatsuhiro Tsujikawa. - Issue #7348: StringIO.StringIO.readline(-1) now acts as if it got no argument like other file objects. - Issue #5949: fixed IMAP4_SSL hang when the IMAP server response is missing proper end-of-line termination. - Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d - Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is generated in Distutils. Patch by Stephen Emslie. - Issue #4120: Drop reference to CRT from manifest when building extensions with msvc9compiler. - Issue #7410: deepcopy of itertools.count() erroneously reset the count. - Issue #7403: logging: Fixed possible race condition in lock creation. - Issue #7341: Close the internal file object in the TarFile constructor in case of an error. - Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch - Issue #7318: multiprocessing now uses a timeout when it fails to establish a connection with another process, rather than looping endlessly. The default timeout is 20 seconds, which should be amply sufficient for local connections. - Issue #7282: Fix a memory leak when an RLock was used in a thread other than those started through `threading.Thread` (for example, using `thread.start_new_thread()`. - Issue #7264: Fix a possible deadlock when deallocating thread-local objects which are part of a reference cycle. - Issue #7249: Methods of io.BytesIO now allow `long` as well as `int` arguments. - Issue #6665: Fix fnmatch to properly match filenames with newlines in them. - Issue #1008086: Fixed socket.inet_aton() to always return 4 bytes even on LP64 platforms (most 64-bit Linux, bsd, unix systems). - Issue #7246 & Issue #7208: getpass now properly flushes input before reading from stdin so that existing input does not confuse it and lead to incorrect entry or an IOError. It also properly flushes it afterwards to avoid the terminal echoing the input afterwards on OSes such as Solaris. - Issue #7244: itertools.izip_longest() no longer ignores exceptions raised during the formation of an output tuple. - Issue #7233: Fix a number of two-argument Decimal methods to make sure that they accept an int or long as the second argument. Also fix buggy handling of large arguments (those with coefficient longer than the current precision) in shift and rotate. - Issue #7082: When falling back to the MIME 'name' parameter, the correct place to look for it is the Content-Type header. - Issue #7099: Decimal.is_normal now returns True for numbers with exponent larger than emax. - Issue #7205: Fix a possible deadlock when using a BZ2File object from several threads at once. - Issue #7048: Force Decimal.logb to round its result when that result is too large to fit in the current precision. - Issue #1488943: difflib.Differ() doesn't always add hints for tab characters - Issue #5037: Proxy the __unicode__ special method to __unicode__ instead of __str__. - Issue #7481: When a threading.Thread failed to start it would leave the instance stuck in initial state and present in threading.enumerate(). - Issue #1068268: The subprocess module now handles EINTR in internal os.waitpid and os.read system calls where appropriate. Extension Modules ----------------- - Issue #7808: Fix reference leaks in _bsddb and related tests. - Stop providing crtassem.h symbols when compiling with Visual Studio 2010, as msvcr100.dll is not a platform assembly anymore. - Issue #6877: Make it possible to link the readline extension to libedit on OSX. - Expat: Fix DoS via XML document with malformed UTF-8 sequences (CVE_2009_3560). - Issue #7242: On Solaris 9 and earlier calling os.fork() from within a thread could raise an incorrect RuntimeError about not holding the import lock. The import lock is now reinitialized after fork. - Issue #7999: os.setreuid() and os.setregid() would refuse to accept a -1 parameter on some platforms such as OS X. Build ----- - Issue #3920, #7903: Define _BSD_SOURCE on OpenBSD 4.4 through 4.9. - Issue #7661: Allow ctypes to be built from a non-ASCII directory path. Patch by Florent Xicluna. - Issue #7589: Only build the nis module when the correct header files are found. - Switch to OpenSSL 0.9.8l on Windows. - Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it compiles correctly under gcc on x86-64. This fixes a reported problem with the --with-tsc build on x86-64. - Ensure that it possible to build extensions for the default binary distribution on OSX 10.6 even when the user does not have the 10.4u SDK installed. - Issue #7541: when using ``python-config`` with a framework install the compiler might use the wrong library. Documentation ------------- - Updating `Using Python` documentation to include description of CPython's -J, -U and -X options. - Update python manual page (options -B, -O0, -s, environment variables PYTHONDONTWRITEBYTECODE, PYTHONNOUSERSITE). Tests ----- - issue #7728: test_timeout was changed to use test_support.bind_port instead of a hard coded port. - Issue #7498: test_multiprocessing now uses test_support.find_unused_port instead of a hardcoded port number in test_rapid_restart. - Issue #7431: use TESTFN in test_linecache instead of trying to create a file in the Lib/test directory, which might be read-only for the user running the tests. - Issue #7324: add a sanity check to regrtest argument parsing to catch the case of an option with no handler. - Issue #7295: Do not use a hardcoded file name in test_tarfile. - Issue #7270: Add some dedicated unit tests for multi-thread synchronization primitives such as Lock, RLock, Condition, Event and Semaphore. - Issue #7055: test___all__ now greedily detects all modules which have an __all__ attribute, rather than using a hardcoded and incomplete list. |
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