| +++++++++++ |
| Python News |
| +++++++++++ |
| |
| (editors: check NEWS.help for information about editing NEWS using ReST.) |
| |
| What's New in Python 3.2 Alpha 1? |
| ================================= |
| |
| *Release date: XX-XXX-XXX* |
| |
| Core and Builtins |
| ----------------- |
| |
| - Issue #7622: Improve the split(), rsplit(), splitlines() and replace() |
| methods of bytes, bytearray and unicode objects by using a common |
| implementation based on stringlib's fast search. Patch by Florent Xicluna. |
| |
| - Issue #7632: Fix a crash in dtoa.c that occurred in debug builds |
| when parsing certain long numeric strings corresponding to subnormal |
| values. Also fix a number of bugs in dtoa.c that could lead to |
| incorrectly rounded results when converting strings to floats. |
| |
| - The __complex__ method is now looked up on the class of instances to make it |
| consistent with other special methods. |
| |
| - Issue #7462: Implement the stringlib fast search algorithm for the `rfind`, |
| `rindex`, `rsplit` and `rpartition` methods. Patch by Florent Xicluna. |
| |
| - Issue #7604: Deleting an unset slotted attribute did not raise an |
| AttributeError. |
| |
| - Issue #7534: Fix handling of IEEE specials (infinities, nans, |
| negative zero) in ** operator. The behaviour now conforms to that |
| described in C99 Annex F. |
| |
| - Issue #1811: improve accuracy and cross-platform consistency for |
| true division of integers: the result of a/b is now correctly |
| rounded for ints a and b (at least on IEEE 754 platforms), and in |
| particular does not depend on the internal representation of an int. |
| |
| - Issue #6834: replace the implementation for the 'python' and 'pythonw' |
| executables on OSX. |
| |
| These executables now work properly with the arch(1) command: |
| ``arch -ppc python`` will start a universal binary version of python |
| in PPC mode (unlike previous releases). |
| |
| - Issue #7466: segmentation fault when the garbage collector is called |
| in the middle of populating a tuple. Patch by Florent Xicluna. |
| |
| - Issue #7419: setlocale() could crash the interpreter on Windows when called |
| with invalid values. |
| |
| - Issue #6077: On Windows, files opened with tempfile.TemporaryFile in "wt+" |
| mode would appear truncated on the first '0x1a' byte (aka. Ctrl+Z). |
| |
| - Issue #7085: Fix crash when importing some extensions in a thread |
| on MacOSX 10.6. |
| |
| - Issue #1757126: Fix the cyrillic-asian alias for the ptcp154 encoding. |
| |
| - Issue #6970: Remove redundant calls when comparing objects that don't |
| implement the relevant rich comparison methods. |
| |
| - Issue #7298: fixes for range and reversed(range(...)). Iteration |
| over range(a, b, c) incorrectly gave an empty iterator when a, b and |
| c fit in C long but the length of the range did not. Also fix |
| several cases where reversed(range(a, b, c)) gave wrong results, and |
| fix a refleak for reversed(range(a, b, c)) with large arguments. |
| |
| - Issue #7244: itertools.izip_longest() no longer ignores exceptions |
| raised during the formation of an output tuple. |
| |
| - Issue #3297: On wide unicode builds, do not split unicode characters into |
| surrogates. |
| |
| - Remove length limitation when constructing a complex number from a string. |
| |
| - Issue #1087418: Boost performance of bitwise operations for longs. |
| |
| - Support for AtheOS has been completely removed from the code base. It was |
| disabled since Python 3.0. |
| |
| - Support for several legacy threading libraries has been disabled. These |
| libraries are: Mach C threads, SunOS LWP, GNU pth, Irix threads. Support code |
| will be entirely removed in 3.3. |
| |
| - Peephole constant folding had missed UNARY_POSITIVE. |
| |
| - 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 #7147: Remove support for compiling Python without complex number |
| support. |
| |
| - Issue #7120: logging: Removed import of multiprocessing which is causing |
| crash in GAE. |
| |
| - Issue #1754094: Improve the stack depth calculation in the compiler. |
| There should be no other effect than a small decrease in memory use. |
| Patch by Christopher Tur Lesniewski-Laas. |
| |
| - Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when |
| using byte values greater than 127. Patch by Derk Drukker. |
| |
| - Issue #1571184: The Unicode database contains properties for more characters. |
| The tables for code points representing numeric values, white spaces or line |
| breaks are now generated from the official Unicode Character Database files, |
| and include information from the Unihan.txt file. |
| |
| - Issue #7019: Raise ValueError when unmarshalling bad long data, instead |
| of producing internally inconsistent Python longs. |
| |
| - Issue #6990: Fix threading.local subclasses leaving old state around |
| after a reference cycle GC which could be recycled by new locals. |
| |
| - Issue #5460: Fix an ambiguity in the grammar. |
| |
| - Issue #1766304: Improve performance of membership tests on range objects. |
| |
| - Issue #6713: Improve performance of integer -> string conversions. |
| |
| - Issue #6846: Fix bug where bytearray.pop() returns negative integers. |
| |
| - Issue #6750: A text file opened with io.open() could duplicate its output |
| when writing from multiple threads at the same time. |
| |
| - Issue #6707: dir() on an uninitialized module caused a crash. |
| |
| - Issue #6540: Fixed crash for bytearray.translate() with invalid parameters. |
| |
| - Issue #6573: set.union() stopped processing inputs if an instance of self |
| occurred in the argument chain. |
| |
| - Issue #6070: On posix platforms import no longer copies the execute bit |
| from the .py file to the .pyc file if it is set. |
| |
| - Issue #1616979: Added the cp720 (Arabic DOS) encoding. |
| |
| - Issue #6428: Since Python 3.0, the __bool__ method must return a bool |
| object, and not an int. Fix the corresponding error message, and the |
| documentation. |
| |
| - The deprecated PyCObject has been removed. |
| |
| - Issue #6347: Include inttypes.h as well as stdint.h in pyport.h. |
| This fixes a build failure on HP-UX: int32_t and uint32_t are |
| defined in inttypes.h instead of stdint.h on that platform. |
| |
| - Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and |
| the 'surrogateescape' error handler, a string which contains unpaired |
| surrogates. |
| |
| - Issue #4856: Remove checks for win NT. |
| |
| - Issue #6687: PyBytes_FromObject() no longer accepts an integer as its |
| argument to construct a null-initialized bytes object. |
| |
| - Issue #1023290: Add from_bytes() and to_bytes() methods to integers. |
| These methods allow the conversion of integers to bytes, and vice-versa. |
| |
| - Issue #7382: Fix bug in bytes.__getnewargs__ that prevented bytes |
| instances from being copied with copy.copy(), and bytes subclasses |
| from being pickled properly. |
| |
| C-API |
| ----- |
| |
| - Make PyUnicode_CompareWithASCIIString return not equal if the Python string |
| has '\0' at the end. |
| |
| - Issue #5080: The argument parsing functions PyArg_ParseTuple, |
| PyArg_ParseTupleAndKeywords, PyArg_VaParse, |
| PyArg_VaParseTupleAndKeywords and PyArg_Parse now raise a |
| DeprecationWarning for float arguments passed with the 'L' format |
| code. This will become a TypeError in a future version of Python, |
| to match the behaviour of the other integer format codes. |
| |
| - Issue #7033: function ``PyErr_NewExceptionWithDoc()`` added. |
| |
| - Issue #7414: 'C' code wasn't being skipped properly (for keyword arguments) |
| in PyArg_ParseTupleAndKeywords. |
| |
| - Issue #7228: Add '%lld' and '%llu' support to PyString_FromFormat(V) |
| and PyErr_Format, on machines with HAVE_LONG_LONG defined. |
| |
| - Issue #6151: Made PyDescr_COMMON conform to standard C (like PyObject_HEAD |
| in PEP 3123). The PyDescr_TYPE and PyDescr_NAME macros should be |
| should used for accessing the d_type and d_name members of structures |
| using PyDescr_COMMON. |
| |
| - Issue #6405: Remove duplicate type declarations in descrobject.h. |
| |
| - The code flags for old __future__ features are now available again. |
| |
| - Issue #5954: Add a PyFrame_GetLineNumber() function to replace most uses of |
| PyCode_Addr2Line(). |
| |
| - Issue #5959: Add a PyCode_NewEmpty() function to create a new empty code |
| object at a specified file, function, and line number. |
| |
| - Issue #1419652: Change the first argument to PyImport_AppendInittab() to |
| ``const char *`` as the string is stored beyond the call. |
| |
| |
| - Issue #2422: When compiled with the ``--with-valgrind`` option, the |
| pymalloc allocator will be automatically disabled when running under |
| Valgrind. This gives improved memory leak detection when running |
| under Valgrind, while taking advantage of pymalloc at other times. |
| |
| Library |
| ------- |
| |
| - Issue #7681: Use floor division in appropiate places in the wave module. |
| |
| - 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 #7105: Make WeakKeyDictionary and WeakValueDictionary robust against |
| the destruction of weakref'ed objects while iterating. |
| |
| - Issue #7455: Fix possible crash in cPickle on invalid input. Patch by |
| Victor Stinner. |
| |
| - 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 #7471: Improve the performance of GzipFile's buffering mechanism, |
| and make it implement the `io.BufferedIOBase` ABC to allow for further |
| speedups by wrapping it in an `io.BufferedReader`. Patch by Nir Aides. |
| |
| - Issue #3972: http.client.HTTPConnection now accepts an optional source_address |
| parameter to allow specifying where your connections come from. |
| |
| - socket.create_connection now accepts an optional source_address parameter. |
| |
| - Issue #5511: now zipfile.ZipFile can be used as a context manager. |
| Initial patch by Brian Curtin. |
| |
| - Issue #7556: Make sure Distutils' msvc9compile reads and writes the |
| MSVC XML Manifest file in text mode so string patterns can be used |
| in regular expressions. |
| |
| - 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 #4757: `zlib.compress` and other methods in the zlib module now |
| raise a TypeError when given an `str` object (rather than a `bytes`-like |
| object). Patch by Victor Stinner and Florent Xicluna. |
| |
| - Issue #7349: Make methods of file objects in the io module accept None as an |
| argument where file-like objects (ie StringIO and BytesIO) accept them to mean |
| the same as passing no argument. |
| |
| - Issue #7357: tarfile no longer suppresses fatal extraction errors by |
| default. |
| |
| - Issue #5949: added check for correct lineends in input from IMAP server |
| in imaplib. |
| |
| - Add a reverse() method to collections.deque(). |
| |
| - Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d |
| |
| - Issue #6986: Fix crash in the JSON C accelerator when called with the |
| wrong parameter types. Patch by Victor Stinner. |
| |
| - Issue #7457: added a read_pkg_file method to |
| distutils.dist.DistributionMetadata. |
| |
| - logging: Added optional `secure` parameter to SMTPHandler, to enable use of |
| TLS with authentication credentials. |
| |
| - 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 #7333: The `posix` module gains an `initgroups()` function providing |
| access to the initgroups(3) C library call on Unix systems which implement |
| it. Patch by Jean-Paul Calderone. |
| |
| - Issue #7408: Fixed distutils.tests.sdist so it doesn't check for group |
| ownership when the group is not forced, because the group may be different |
| from the user's group and inherit from its container when the test is run. |
| |
| - Issue #4486: When an exception has an explicit cause, do not print its |
| implicit context too. This affects the `traceback` module as well as |
| built-in exception printing. |
| |
| - Issue #1515: Enable use of deepcopy() with instance methods. Patch by |
| Robert Collins. |
| |
| - Issue #7403: logging: Fixed possible race condition in lock creation. |
| |
| - Issue #6845: Add restart support for binary upload in ftplib. The |
| `storbinary()` method of FTP and FTP_TLS objects gains an optional `rest` |
| argument. Patch by Pablo Mouzo. |
| |
| - Issue #5788: `datetime.timedelta` objects get a new `total_seconds()` |
| method returning the total number of seconds in the duration. Patch by |
| Brian Quinlan. |
| |
| - Issue #7133: SSL objects now support the new buffer API. |
| |
| - Issue #1488943: difflib.Differ() doesn't always add hints for tab characters |
| |
| - Issue #6123: tarfile now opens empty archives correctly and consistently |
| raises ReadError on empty files. |
| |
| - Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can |
| be 2. |
| |
| - Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead |
| of __str__. |
| |
| - Issue #7341: Close the internal file object in the TarFile constructor in |
| case of an error. |
| |
| - Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh |
| Windows box. Help provided by David Bolen. |
| |
| - Issue #2054: ftplib now provides an FTP_TLS class to do secure FTP using |
| TLS or SSL. Patch by Giampaolo Rodola'. |
| |
| - Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch |
| |
| - Issue #4969: The mimetypes module now reads the MIME database from |
| the registry under Windows. Patch by Gabriel Genellina. |
| |
| - Issue #6816: runpy now provides a run_path function that allows Python code |
| to execute file paths that refer to source or compiled Python files as well |
| as zipfiles, directories and other valid sys.path entries that contain a |
| __main__.py file. This allows applications that run other Python scripts to |
| support the same flexibility as the CPython command line itself. |
| |
| - 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 #7197: Allow unittest.TextTestRunner objects to be pickled and |
| unpickled. This fixes crashes under Windows when trying to run |
| test_multiprocessing in verbose mode. |
| |
| - Issue #3001: Add a C implementation of recursive locks which is used by |
| default when instantiating a `threading.RLock` object. This makes |
| recursive locks as fast as regular non-recursive locks (previously, |
| they were slower by 10x to 15x). |
| |
| - 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 #7187: Importlib would not silence the IOError raised when trying to |
| write new bytecode when it was made read-only. |
| |
| - Issue #7264: Fix a possible deadlock when deallocating thread-local objects |
| which are part of a reference cycle. |
| |
| - Issue #7211: Allow 64-bit values for the `ident` and `data` fields of kevent |
| objects on 64-bit systems. Patch by Michael Broghton. |
| |
| - Issue #6896: mailbox.Maildir now invalidates its internal cache each time |
| a modification is done through it. This fixes inconsistencies and test |
| failures on systems with slightly bogus mtime behaviour. |
| |
| - 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 #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 #4750: Store the basename of the original filename in the gzip FNAME |
| header as required by RFC 1952. |
| |
| - Issue #1180: Added a new global option to ignore ~/.pydistutils.cfg in |
| Distutils. |
| |
| - Issue #7218: Fix test_site for win32, the directory comparison was done with |
| an uppercase. |
| |
| - Issue #7205: Fix a possible deadlock when using a BZ2File object from |
| several threads at once. |
| |
| - Issue #7077: logging: SysLogHandler now treats Unicode as per RFC 5424. |
| |
| - Issue #7099: Decimal.is_normal now returns True for numbers with exponent |
| larger than emax. |
| |
| - Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows |
| platforms, and assorted locale fixes by Derk Drukker. |
| |
| - Issue #5833: Fix extra space character in readline completion with the |
| GNU readline library version 6.0. |
| |
| - Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment |
| |
| - Issue #7086: Added TCP support to SysLogHandler, and tidied up some |
| anachronisms in the code which were a relic of 1.5.2 compatibility. |
| |
| - Issue #7082: When falling back to the MIME 'name' parameter, the |
| correct place to look for it is the Content-Type header. |
| |
| - Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the |
| builtin tokenizer. |
| |
| - Issue #7048: Force Decimal.logb to round its result when that result |
| is too large to fit in the current precision. |
| |
| - Issue #6236, #6348: Fix various failures in the I/O library under AIX |
| and other platforms, when using a non-gcc compiler. Patch by Derk Drukker. |
| |
| - Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...) |
| does now always result in NULL. |
| |
| - Issue #5042: Structure sub-subclass does now initialize correctly |
| with base class positional arguments. |
| |
| - Issue #6882: Import uuid creates zombies processes. |
| |
| - Issue #6635: Fix profiler printing usage message. |
| |
| - Issue #6856: Add a filter keyword argument to TarFile.add(). |
| |
| - Issue #6888: pdb's alias command was broken when no arguments were given. |
| |
| - Issue #6857: Default format() alignment should be '>' for Decimal |
| instances. |
| |
| - Issue #6795: int(Decimal('nan')) now raises ValueError instead of |
| returning NaN or raising InvalidContext. Also, fix infinite recursion |
| in long(Decimal('nan')). |
| |
| - Issue #6850: Fix bug in Decimal._parse_format_specifier for formats |
| with no type specifier. |
| |
| - Issue #6239: ctypes.c_char_p return value must return bytes. |
| |
| - Issue #6838: Use a list to accumulate the value instead of |
| repeatedly concatenating strings in http.client's |
| HTTPResponse._read_chunked providing a significant speed increase |
| when downloading large files servend with a Transfer-Encoding of 'chunked'. |
| |
| - Trying to import a submodule from a module that is not a package, ImportError |
| should be raised, not AttributeError. |
| |
| - When the globals past to importlib.__import__() has __package__ set to None, |
| fall back to computing what __package__ should be instead of giving up. |
| |
| - Raise a TypeError when the name of a module to be imported for |
| importlib.__import__ is not a string (was raising an |
| AttributeError before). |
| |
| - Allow the fromlist passed into importlib.__import__ to be any iterable. |
| |
| - Have importlib raise ImportError if None is found in sys.modules. |
| |
| - Issue #6054: Do not normalize stored pathnames in tarfile. |
| |
| - Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN |
| payloads are now ordered by integer value rather than lexicographically. |
| |
| - Issue #1356969: Add missing info methods in tix.HList. |
| |
| - Issue #1522587: New constants and methods for the tix.Grid widget. |
| |
| - Issue #1250469: Fix the return value of tix.PanedWindow.panes. |
| |
| - Issue #1119673: Do not override tkinter.Text methods when creating a |
| ScrolledText. |
| |
| - Issue #6665: Fix fnmatch to properly match filenames with newlines in them. |
| |
| - Issue #1135: Add the XView and YView mix-ins to avoid duplicating |
| the xview* and yview* methods. |
| |
| - Issue #6629: Fix a data corruption issue in the new I/O library, which could |
| occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or |
| "wb+" mode) after having buffered a certain amount of data for reading. This |
| bug was not present in the pure Python implementation. |
| |
| - Issue #6622: Fix "local variable 'secret' referenced before |
| assignment" bug in POP3.apop. |
| |
| - Issue #2715: Remove remnants of Carbon.File from binhex module. |
| |
| - Issue #6595: The Decimal constructor now allows arbitrary Unicode |
| decimal digits in input, as recommended by the standard. Previously |
| it was restricted to accepting [0-9]. |
| |
| - Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT |
| DO/DONT correctly. |
| |
| - Issue #1424152: Fix for http.client, urllib.request to support SSL while |
| working through proxy. Original patch by Christopher Li, changes made by |
| Senthil Kumaran |
| |
| - Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for |
| loaders that allow for modules to be executed. Both importlib.abc.PyLoader |
| and PyPycLoader inherit from this class and provide implementations in |
| relation to other methods required by the ABCs. |
| |
| - importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like |
| the documentation said it did even though the code in PyLoader relied on the |
| abstract method required by ResourceLoader. |
| |
| - Issue #6431: Make Fraction type return NotImplemented when it doesn't |
| know how to handle a comparison without loss of precision. Also add |
| correct handling of infinities and nans for comparisons with float. |
| |
| - Issue #6415: Fixed warnings.warn segfault on bad formatted string. |
| |
| - Issue #6358: The exit status of a command started with os.popen() was |
| reported differently than it did with python 2.x. |
| |
| - Issue #6323: The pdb debugger did not exit when running a script with a |
| syntax error. |
| |
| - Issue #3392: The subprocess communicate() method no longer fails in select() |
| when file descriptors are large; communicate() now uses poll() when possible. |
| |
| - Issue #6369: Fix an RLE decompression bug in the binhex module. |
| |
| - Issue #6344: Fixed a crash of mmap.read() when passed a negative argument. |
| |
| - The deprecated function string.maketrans has been removed. |
| |
| - Issue #4005: Fixed a crash of pydoc when there was a zip file present in |
| sys.path. |
| |
| - Issue #6218: io.StringIO and io.BytesIO instances are now picklable. |
| |
| Extension Modules |
| ----------------- |
| |
| - Issue #6508: Add posix.{getresuid,getresgid,setresuid,setresgid}. |
| |
| - Issue #7078: Set struct.__doc__ from _struct.__doc__. |
| |
| - Issue #3366: Add erf, erfc, expm1, gamma, lgamma functions to math module. |
| |
| - Issue #6877: It is now possible to link the readline extension to the |
| libedit readline emulation on OSX 10.5 or later. |
| |
| - Issue #6848: Fix curses module build failure on OS X 10.6. |
| |
| - Fix a segfault that could be triggered by expat with specially formed input. |
| |
| - Issue #6561: '\d' in a regex now matches only characters with |
| Unicode category 'Nd' (Number, Decimal Digit). Previously it also |
| matched characters with category 'No'. |
| |
| - Issue #4509: Array objects are no longer modified after an operation |
| failing due to the resize restriction in-place when the object has exported |
| buffers. |
| |
| - Issue #2389: Array objects are now pickled in a portable manner. |
| |
| Build |
| ----- |
| |
| - Issue #6491: Allow --with-dbmliborder to specify that no dbms will be built. |
| |
| - Issue #6943: Use pkg-config to find the libffi headers when the |
| --with-system-ffi flag is used. |
| |
| - Issue #7609: Add a --with-system-expat option that causes the system's expat |
| library to be used for the pyexpat module instead of the one included with |
| Python. |
| |
| - Issue #7589: Only build the nis module when the correct header files are |
| found. |
| |
| - Switch to OpenSSL 0.9.8l and sqlite 3.6.21 on Windows. |
| |
| - Issue #5792: Extend the short float repr support to x86 systems using |
| icc or suncc. |
| |
| - 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. |
| |
| - Issue #6802: Fix build issues on MacOSX 10.6 |
| |
| - Issue #6244: Allow detect_tkinter to look for Tcl/Tk 8.6. |
| |
| - Issue 4601: 'make install' did not set the appropriate permissions on |
| directories. |
| |
| - Issue 5390: Add uninstall icon independent of whether file |
| extensions are installed. |
| |
| - Issue #7541: when using ``python-config`` with a framework install the compiler might |
| use the wrong library. |
| |
| Documentation |
| ------------ |
| |
| - Document that importing a module that has None in sys.modules triggers an |
| ImportError. |
| |
| - Issue #6556: Fixed the Distutils configuration files location explanation |
| for Windows. |
| |
| Tests |
| ----- |
| |
| - Issue #7376: instead of running a self-test (which was failing) when called |
| with no arguments, doctest.py now gives a usage message. |
| |
| - Issue #7396: fix regrtest -s, which was broken by the -j enhancement. |
| |
| - 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 #7312: Add a -F flag to run the selected tests in a loop until |
| a test fails. Can be combined with -j. |
| |
| - Issue #6551: test_zipimport could import and then destroy some modules of |
| the encodings package, which would make other tests fail further down |
| the road because the internally cached encoders and decoders would point |
| to empty global variables. |
| |
| - 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 #7248 (part 2): Use a unique temporary directory for importlib source |
| tests instead of tempfile.tempdir. This prevents the tests from sharing state |
| between concurrent executions on the same system. |
| |
| - Issue #7248: In importlib.test.source.util a try/finally block did not make |
| sure that some referenced objects actually were created in the block before |
| calling methods on the object. |
| |
| - Issue #7222: Make thread "reaping" more reliable so that reference |
| leak-chasing test runs give sensible results. The previous method of |
| reaping threads could return successfully while some Thread objects were |
| still referenced. This also introduces a new private function: |
| :func:`_thread._count()`. |
| |
| - Issue #7151: fixed regrtest -j so that output to stderr from a test no |
| longer runs the risk of causing the worker thread to fail. |
| |
| - Issue #7055: test___all__ now greedily detects all modules which have an |
| __all__ attribute, rather than using a hardcoded and incomplete list. |
| |
| - Issue #7058: Added save/restore for things like sys.argv and cwd to |
| runtest_inner in regrtest, with warnings if the called test modifies them, |
| and a new section in the summary report at the end. |
| |
| - Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6. |
| |
| - Fixed tests in importlib.test.source.test_abc_loader that were masking |
| the proper exceptions that should be raised for missing or improper code |
| object bytecode. |
| |
| - Removed importlib's custom test discovery code and switched to |
| unittest.TestLoader.discover(). |
| |
| |
| What's New in Python 3.1? |
| ========================= |
| |
| *Release date: 27-June-2009* |
| |
| Core and Builtins |
| ----------------- |
| |
| - Issue #6334: Fix bug in range length calculation for ranges with |
| large arguments. |
| |
| - Issue #6329: Fixed iteration for memoryview objects (it was being blocked |
| because it wasn't recognized as a sequence). |
| |
| Library |
| ------- |
| |
| - Issue #6126: Fixed pdb command-line usage. |
| |
| - Issue #6314: logging: performs extra checks on the "level" argument. |
| |
| - Issue #6274: Fixed possible file descriptors leak in subprocess.py |
| |
| - Accessing io.StringIO.buffer now raises an AttributeError instead of |
| io.UnsupportedOperation. |
| |
| - Issue #6271: mmap tried to close invalid file handle (-1) when anonymous. |
| (On Unix) |
| |
| - Issue #1202: zipfile module would cause a struct.error when attempting to |
| store files with a CRC32 > 2**31-1. |
| |
| Extension Modules |
| ----------------- |
| |
| - Issue #5590: Remove unused global variable in pyexpat extension. |
| |
| |
| What's New in Python 3.1 Release Candidate 2? |
| ============================================= |
| |
| *Release date: 13-June-2009* |
| |
| Core and Builtins |
| ----------------- |
| |
| - Fixed SystemError triggered by "range([], 1, -1)". |
| |
| - Issue #5924: On Windows, a large PYTHONPATH environment variable |
| (more than 255 characters) would be completely ignored. |
| |
| - Issue #4547: When debugging a very large function, it was not always |
| possible to update the lineno attribute of the current frame. |
| |
| - Issue #5330: C functions called with keyword arguments were not reported by |
| the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau. |
| |
| Library |
| ------- |
| |
| - Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular |
| expression string pattern was trying to match against a bytes returned by |
| Popen. Tested under win32 to build the py-postgresql project. |
| |
| - Issue #6258: Support AMD64 in bdist_msi. |
| |
| - Issue #6195: fixed doctest to no longer try to read 'source' data from |
| binary files. |
| |
| - Issue #5262: Fixed bug in next rollover time computation in |
| TimedRotatingFileHandler. |
| |
| - Issue #6217: The C implementation of io.TextIOWrapper didn't include the |
| errors property. Additionally, the errors and encoding properties of StringIO |
| are always None now. |
| |
| - Issue #6137: The pickle module now translates module names when loading |
| or dumping pickles with a 2.x-compatible protocol, in order to make data |
| sharing and migration easier. This behaviour can be disabled using the |
| new `fix_imports` optional argument. |
| |
| - Removed the ipaddr module. |
| |
| - Issue #3613: base64.{encode,decode}string are now called |
| base64.{encode,decode}bytes which reflects what type they accept and return. |
| The old names are still there as deprecated aliases. |
| |
| - Issue #5767: Remove sgmlop support from xmlrpc.client. |
| |
| - Issue #6150: Fix test_unicode on wide-unicode builds. |
| |
| - Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty |
| parameters. |
| |
| Windows |
| ------- |
| |
| - Issue #6221: Delete test registry key before running the test. |
| |
| - Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file. |
| |
| C-API |
| ----- |
| |
| - Issue #5735: Python compiled with --with-pydebug should throw an |
| ImportError when trying to import modules compiled without |
| --with-pydebug, and vice-versa. |
| |
| |
| Build |
| ----- |
| |
| - Issue #6154: Make sure the intl library is added to LIBS if needed. Also |
| added LIBS to OS X framework builds. |
| |
| - Issue #5809: Specifying both --enable-framework and --enable-shared is |
| an error. Configure now explicity tells you about this. |
| |
| |
| |
| What's New in Python 3.1 release candidate 1? |
| ============================================= |
| |
| *Release date: 2009-05-30* |
| |
| Core and Builtins |
| ----------------- |
| |
| - Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion |
| of the command line. |
| |
| - Issue #6012: Add cleanup support to O& argument parsing. |
| |
| - Issue #6089: Fixed str.format with certain invalid field specifiers |
| that would raise SystemError. |
| |
| - Issue #5982: staticmethod and classmethod now expose the wrapped |
| function with __func__. |
| |
| - Added support for multiple context managers in the same with-statement. |
| Deprecated contextlib.nested() which is no longer needed. |
| |
| - Issue #5829: complex("1e500") no longer raises OverflowError. This |
| makes it consistent with float("1e500") and interpretation of real |
| and imaginary literals. |
| |
| - Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more. |
| |
| - Issue #5994: the marshal module now has docstrings. |
| |
| - Issue #5981: Fix three minor inf/nan issues in float.fromhex: |
| (1) inf and nan strings with trailing whitespace were incorrectly |
| rejected; (2) parsing of strings representing infinities and nans |
| was locale aware; and (3) the interpretation of fromhex('-nan') |
| didn't match that of float('-nan'). |
| |
| Library |
| ------- |
| |
| - Issue #4859: Implement PEP 383 for pwd, spwd, and grp. |
| |
| - smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259). |
| |
| - Issue #6121: pydoc now ignores leading and trailing spaces in the |
| argument to the 'help' function. |
| |
| - Issue #6118: urllib.parse.quote_plus ignored the encoding and errors |
| arguments for strings with a space in them. |
| |
| - collections.namedtuple() was not working with the following field |
| names: cls, self, tuple, itemgetter, and property. |
| |
| - In unittest, using a skipping decorator on a class is now equivalent to |
| skipping every test on the class. The ClassTestSuite class has been removed. |
| |
| - Issue #6050: Don't fail extracting a directory from a zipfile if |
| the directory already exists. |
| |
| - Issue #1309352: fcntl now converts its third arguments to a C `long` rather |
| than an int, which makes some operations possible under 64-bit Linux (e.g. |
| DN_MULTISHOT with F_NOTIFY). |
| |
| - Issue #5761: Add the name of the underlying file to the repr() of various |
| IO objects. |
| |
| - Issue #5259: smtplib plain auth login no longer gives a traceback. Fix |
| by Musashi Tamura, tests by Marcin Bachry. |
| |
| - Issue #1983: Fix functions taking or returning a process identifier to use |
| the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have |
| a process identifier type wider than the standard C integer type. |
| |
| - Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket. |
| Patch by Farhan Ahmad, test by Marcin Bachry. |
| |
| - Issue #2116: Weak references and weak dictionaries now support copy()ing and |
| deepcopy()ing. |
| |
| - Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr. |
| |
| - Issue #5918: Fix a crash in the parser module. |
| |
| - Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr. |
| |
| - 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 #4050: inspect.findsource/getsource now raise an IOError if the 'source' |
| file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix |
| corrects a pydoc regression. |
| |
| - Issue 5955: aifc's close method did not close the file it wrapped, |
| now it does. This also means getfp method now returns the real fp. |
| |
| Installation |
| ------------ |
| |
| - Issue #6047: fullinstall has been removed because Python 3's executable will |
| now be known as python3. |
| |
| - Lib/smtpd.py is no longer installed as a script. |
| |
| Extension Modules |
| ----------------- |
| |
| - Issue #3061: Use wcsftime for time.strftime where available. |
| |
| - Issue #4873: Fix resource leaks in error cases of pwd and grp. |
| |
| - Issue #6093: Fix off-by-one error in locale.strxfrm. |
| |
| - The _functools and _locale modules are now built into the libpython shared |
| library instead of as extension modules. |
| |
| Build |
| ----- |
| |
| - Issue #3585: Add pkg-config support. It creates a python-2.7.pc file |
| and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by |
| Clinton Roy. |
| |
| Tests |
| ----- |
| |
| - Issue 5442: Tests for importlib were not properly skipping case-sensitivity |
| tests on darwin even when the OS was installed on a case-sensitive |
| filesystem. Also fixed tests that should not be run when |
| sys.dont_write_bytecode is true. |
| |
| |
| What's New in Python 3.1 beta 1? |
| ================================ |
| |
| *Release date: 2009-05-06* |
| |
| Core and Builtins |
| ----------------- |
| |
| - Issue #5914: Add new C API function PyOS_string_to_double, and |
| deprecate PyOS_ascii_strtod and PyOS_ascii_atof. |
| |
| - Issue #3382: float.__format__, complex.__format__, and %-formatting |
| no longer map 'F' to 'f'. Because of issue #5859 (below), this only |
| affects nan -> NAN and inf -> INF. |
| |
| - Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames |
| in all operations, including splitdrive, split, etc. splitunc() now issues |
| a PendingDeprecation warning. |
| |
| - Issue #5920: For float.__format__, change the behavior with the |
| empty presentation type (that is, not one of 'e', 'f', 'g', or 'n') |
| to be like 'g' but with at least one decimal point and with a |
| default precision of 12. Previously, the behavior the same but with |
| a default precision of 6. This more closely matches str(), and |
| reduces surprises when adding alignment flags to the empty |
| presentation type. This also affects the new complex.__format__ in |
| the same way. |
| |
| - Implement PEP 383, Non-decodable Bytes in System Character Interfaces. |
| |
| - Issue #5890: in subclasses of 'property' the __doc__ attribute was |
| shadowed by classtype's, even if it was None. property now |
| inserts the __doc__ into the subclass instance __dict__. |
| |
| - Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal |
| sequences. Patch by Nick Barnes and Victor Stinner. |
| |
| - Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler. |
| |
| - Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have |
| received a new method, detach(). detach() disconnects the underlying stream |
| from the buffer or text IO and returns it. |
| |
| - Issue #5859: Remove switch from '%f' to '%g'-style formatting for |
| floats with absolute value over 1e50. Also remove length |
| restrictions for float formatting: '%.67f' % 12.34 and '%.120e' % |
| 12.34 no longer raise an exception. |
| |
| - Issue #1588: Add complex.__format__. For example, |
| format(complex(1, 2./3), '.5') now produces a sensible result. |
| |
| - Issue #5864: Fix empty format code formatting for floats so that it |
| never gives more than the requested number of significant digits. |
| |
| - Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes |
| new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h. |
| |
| - Issue #5835: Deprecate PyOS_ascii_formatd. |
| |
| - Issue #4971: Fix titlecase for characters that are their own |
| titlecase, but not their own uppercase. |
| |
| - Issue #5283: Setting __class__ in __del__ caused a segfault. |
| |
| - Issue #5816: complex(repr(z)) now recovers z exactly, even when |
| z involves nans, infs or negative zeros. |
| |
| - Issue #3166: Make int -> float conversions correctly rounded. |
| |
| - Issue #1869 (and many duplicates): make round(x, n) correctly |
| rounded for a float x, by using the decimal <-> binary conversions |
| from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now |
| consistently agrees with format(x, '.2f'). |
| |
| - Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on |
| some builtin types. |
| |
| - Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'. |
| |
| - Issue #5515: str.format() type 'n' combined with commas and leading |
| zeros no longer gives odd results with ints and floats. |
| |
| - Implement PEP 378, Format Specifier for Thousands Separator, for |
| floats. |
| |
| - The str function switches to exponential notation at |
| 1e11, not 1e12. This avoids printing 13 significant digits in |
| situations where only 12 of them are correct. Example problem |
| value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a |
| long time.) |
| |
| - Issue #1580: On most platforms, use a 'short' float repr: for a |
| finite float x, repr(x) now outputs a string based on the shortest |
| sequence of decimal digits that rounds to x. Previous behaviour was |
| to output 17 significant digits and then strip trailing zeros. |
| Another minor difference is that the new repr switches to |
| exponential notation at 1e16 instead of the previous 1e17; this |
| avoids misleading output in some cases. |
| |
| There's a new sys attribute sys.float_repr_style, which takes |
| the value 'short' to indicate that we're using short float repr, |
| and 'legacy' if the short float repr isn't available for one |
| reason or another. |
| |
| The float repr change involves incorporating David Gay's 'perfect |
| rounding' code into the Python core (it's in Python/dtoa.c). As a |
| secondary consequence, all string-to-float and float-to-string |
| conversions (including all float formatting operations) will be |
| correctly rounded on these platforms. |
| |
| See issue 1580 discussions for details of platforms for which |
| this change does not apply. |
| |
| - Issue #5759: float() didn't call __float__ on str subclasses. |
| |
| - The string.maketrans() function is deprecated; there is a new static method |
| maketrans() on the bytes and bytearray classes. This removes confusion about |
| the types string.maketrans() is supposed to work with, and mirrors the |
| methods available on the str class. |
| |
| - Issue #2170: refactored xml.dom.minidom.normalize, increasing both |
| its clarity and its speed. |
| |
| - Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)' |
| to avoid compiler warnings. |
| |
| - Issue #3739: The unicode-internal encoder now reports the number of characters |
| consumed like any other encoder (instead of the number of bytes). |
| |
| Installation |
| ------------ |
| |
| - Issue #5756: Install idle and pydoc with a 3 suffix. |
| |
| Library |
| ------- |
| |
| - Issue #5311: bdist_msi can now build packages that do not depend on a |
| specific Python version. |
| |
| - Issue #5150: IDLE's format menu now has an option to strip trailing |
| whitespace. |
| |
| - Issue #5940: distutils.command.build_clib.check_library_list was not doing |
| the right type checkings anymore. |
| |
| - Issue #4875: On win32, ctypes.util.find_library does no longer |
| return directories. |
| |
| - Issue #5142: Add the ability to skip modules while stepping to pdb. |
| |
| - Issue #1309567: Fix linecache behavior of stripping subdirectories when |
| looking for files given by a relative filename. |
| |
| - Issue #5923: Update the ``turtle`` module to version 1.1, add two new |
| turtle demos in Demo/turtle. |
| |
| - Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when |
| extracting a file to the root directory. |
| |
| - Issue #5913: os.listdir() should fail for empty path on windows. |
| |
| - Issue #5084: unpickling now interns the attribute names of pickled objects, |
| saving memory and avoiding growth in size of subsequent pickles. Proposal |
| and original patch by Jake McGuire. |
| |
| - The json module now works exclusively with str and not bytes. |
| |
| - Issue #3959: The ipaddr module has been added to the standard library. |
| Contributed by Google. |
| |
| - Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an |
| error when a named pipe is encountered, rather than blocking infinitely. |
| |
| - Issue #5857: tokenize.tokenize() now returns named tuples. |
| |
| - Issue #4305: ctypes should now build again on mipsel-linux-gnu |
| |
| - Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the |
| string is already in normalized form, by performing a quick check beforehand. |
| Original patch by Rauli Ruohonen. |
| |
| - Issue #5853: calling a function of the mimetypes module from several threads |
| at once could hit the recursion limit if the mimetypes database hadn't been |
| initialized before. |
| |
| - Issue #5854: Updated __all__ to include some missing names and remove some |
| names which should not be exported. |
| |
| - Issue #3102: All global symbols that the _ctypes extension defines |
| are now prefixed with 'Py' or '_ctypes'. |
| |
| - Issue #5041: ctypes does now allow pickling wide character. |
| |
| - Issue #5812: For the two-argument form of the Fraction constructor, |
| Fraction(m, n), m and n are permitted to be arbitrary Rational |
| instances. |
| |
| - Issue #5812: Fraction('1e6') is valid: more generally, any string |
| that's valid for float() is now valid for Fraction(), with the |
| exception of strings representing NaNs and infinities. |
| |
| - Issue #5734: BufferedRWPair was poorly tested and had several glaring |
| bugs. Patch by Brian Quinlan. |
| |
| - Issue #1161031: fix readwrite select flag handling: POLLPRI now |
| results in a handle_expt_event call, not handle_read_event, and POLLERR |
| and POLLNVAL now call handle_close, not handle_expt_event. Also, |
| dispatcher now has an 'ignore_log_types' attribute for suppressing |
| log messages, which is set to 'warning' by default. |
| |
| - Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for |
| new arguments introduced in 2.5. |
| |
| - Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in |
| makeunicodedata.py and regenerated the Unicode database (This fixes |
| u'\u1d79'.lower() == '\x00'). |
| |
| Extension Modules |
| ----------------- |
| |
| - Issue #5881: Remove old undocumented compatibility interfaces in hashlib and |
| pwd. |
| |
| - Issue #5463: In struct module, remove deprecated float coercion |
| for integer type codes: struct.pack('L', 0.3) should now raise |
| an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed. |
| The version number has been bumped to 0.3. |
| |
| - Issue #5359: Readd the Berkley-DB detection code to allow _dbm be built |
| using Berkley-DB. |
| |
| Tests |
| ----- |
| |
| - Issue #5354: New test support function import_fresh_module() makes |
| it easy to import both normal and optimised versions of modules. |
| test_heapq and test_warnings have been adjusted to use it, tests for |
| other modules with both C and Python implementations in the stdlib |
| can be adjusted to use it over time. |
| |
| - Issue #5837: Certain sequences of calls to set() and unset() for |
| support.EnvironmentVarGuard objects restored the environment variables |
| incorrectly on __exit__. |
| |
| C-API |
| ----- |
| |
| - Issue #5630: A replacement PyCObject API, PyCapsule, has been added. |
| |
| |
| What's New in Python 3.1 alpha 2? |
| ================================= |
| |
| *Release date: 2009-4-4* |
| |
| Core and Builtins |
| ----------------- |
| |
| - Implement PEP 378, Format Specifier for Thousands Separator, for |
| integers. |
| |
| - Issue #5666: Py_BuildValue's 'c' code should create byte strings. |
| |
| - Issue #5499: The 'c' code for argument parsing functions now only accepts a |
| byte, and the 'C' code only accepts a unicode character. |
| |
| - Fix a problem in PyErr_NormalizeException that leads to "undetected errors" |
| when hitting the recursion limit under certain circumstances. |
| |
| - Issue #1665206: Remove the last eager import in _warnings.c and make it lazy. |
| |
| - Fix a segfault when running test_exceptions with coverage, caused by |
| insufficient checks in accessors of Exception.__context__. |
| |
| - Issue #5604: non-ASCII characters in module name passed to |
| imp.find_module() were converted to UTF-8 while the path is |
| converted to the default filesystem encoding, causing nonsense. |
| |
| - Issue #5126: str.isprintable() returned False for space characters. |
| |
| - Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to |
| the end sys.path, for compatibility with the system install of Python. |
| |
| - Issue #4688: Add a heuristic so that tuples and dicts containing only |
| untrackable objects are not tracked by the garbage collector. This can |
| reduce the size of collections and therefore the garbage collection overhead |
| on long-running programs, depending on their particular use of datatypes. |
| |
| - Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to |
| improve its performance. Long divisions and remainder operations |
| are now between 50% and 150% faster. |
| |
| - Issue #4258: Make it possible to use base 2**30 instead of base |
| 2**15 for the internal representation of integers, for performance |
| reasons. Base 2**30 is enabled by default on 64-bit machines. Add |
| --enable-big-digits option to configure, which overrides the |
| default. Add sys.int_info structseq to provide information about |
| the internal format. |
| |
| - Issue #4474: PyUnicode_FromWideChar now converts characters outside |
| the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4 |
| and sizeof(Py_UNICODE) == 2. |
| |
| - Issue #5237: Allow auto-numbered fields in str.format(). For |
| example: '{} {}'.format(1, 2) == '1 2'. |
| |
| - Issue #5392: when a very low recursion limit was set, the interpreter would |
| abort with a fatal error after the recursion limit was hit twice. |
| |
| - Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with |
| short file names. |
| |
| Library |
| ------- |
| |
| - Issue #2625: added missing items() call to the for loop in |
| mailbox.MH.get_message(). |
| |
| - Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat |
| error substitutions from non-strict codec error callbacks in |
| incrementalencoder and StreamWriter. |
| |
| - Issue #5656: Fix the coverage reporting when running the test suite with |
| the -T argument. |
| |
| - Issue #5647: MutableSet.__iand__() no longer mutates self during iteration. |
| |
| - Issue #5624: Fix the _winreg module name still used in several modules. |
| |
| - Issue #5628: Fix io.TextIOWrapper.read() with a unreadable buffer. |
| |
| - Issue #5619: Multiprocessing children disobey the debug flag and causes |
| popups on windows buildbots. Patch applied to work around this issue. |
| |
| - Issue #5400: Added patch for multiprocessing on netbsd compilation/support |
| |
| - Issue #5387: Fixed mmap.move crash by integer overflow. |
| |
| - Issue #5261: Patch multiprocessing's semaphore.c to support context |
| manager use: "with multiprocessing.Lock()" works now. |
| |
| - Issue #5236: Change time.strptime() to only take strings. Didn't work with |
| bytes already but the failure was non-obvious. |
| |
| - Issue #5177: Multiprocessing's SocketListener class now uses |
| socket.SO_REUSEADDR on all connections so that the user no longer needs |
| to wait 120 seconds for the socket to expire. |
| |
| - Issue #5595: Fix UnboundedLocalError in ntpath.ismount(). |
| |
| - Issue #1174606: Calling read() without arguments of an unbounded file |
| (typically /dev/zero under Unix) could crash the interpreter. |
| |
| - The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and |
| io.BufferedRandom have been deprecated for removal in Python 3.2. |
| |
| - Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop |
| forever on incomplete input. That caused tarfile.open() to hang when used |
| with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or |
| partial bzip2 compressed data. |
| |
| - Issue #2110: Add support for thousands separator and 'n' type |
| specifier to Decimal.__format__ |
| |
| - Fix Decimal.__format__ bug that swapped the meanings of the '<' and |
| '>' alignment characters. |
| |
| - The error detection code in FileIO.close() could fail to reflect the `errno` |
| value, and report it as -1 instead. |
| |
| - Issue #5016: FileIO.seekable() could return False if the file position |
| was negative when truncated to a C int. Patch by Victor Stinner. |
| |
| Extension Modules |
| ----------------- |
| |
| - Issue #5391: mmap now deals exclusively with bytes. |
| |
| - Issue #5463: In struct module, remove deprecated overflow wrapping |
| when packing an integer: struct.pack('=L', -1) now raises |
| struct.error instead of returning b'\xff\xff\xff\xff'. The |
| _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants |
| have been removed from the struct module. |
| |
| |
| What's New in Python 3.1 alpha 1 |
| ================================ |
| |
| *Release date: 2009-03-07* |
| |
| Core and Builtins |
| ----------------- |
| |
| - The io module has been reimplemented in C for speed. |
| |
| - Give dict views an informative __repr__. |
| |
| - Issue #5247: Improve error message when unknown format codes are |
| used when using str.format() with str, int, and float arguments. |
| |
| - Issue #5249: time.strftime returned malformed string when format string |
| contained non ascii character on windows. |
| |
| - Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the |
| source has already been decoded into str. |
| |
| - Issue #5186: Reduce hash collisions for objects with no __hash__ method by |
| rotating the object pointer by 4 bits to the right. |
| |
| - Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs: |
| it now forces its argument to double before testing for infinity. |
| |
| - Issue #5137: Make len() correctly raise a TypeError when a __len__ method |
| returns a non-number type. |
| |
| - Issue #5182: Removed memoryview.__str__. |
| |
| - Issue #1717: Removed builtin cmp() function, dropped tp_compare |
| slot, the C API functions PyObject_Compare and PyUnicode_Compare and |
| the type definition cmpfunc. The tp_compare slot has been renamed |
| to tp_reserved, and is reserved for future usage. |
| |
| - Issue #1242657: the __len__() and __length_hint__() calls in several tools |
| were suppressing all exceptions. These include list() and bytearray(). |
| |
| - Issue #4707: round(x, n) now returns an integer if x is an integer. |
| Previously it returned a float. |
| |
| - Issue #4753: By enabling a configure option named '--with-computed-gotos' |
| on compilers that support it (notably: gcc, SunPro, icc), the bytecode |
| evaluation loop is compiled with a new dispatch mechanism which gives |
| speedups of up to 20%, depending on the system, on various benchmarks. |
| |
| - Issue #4874: Most builtin decoders now reject unicode input. |
| |
| - Issue #4842: Don't allow trailing 'L' when constructing an integer |
| from a string. |
| |
| - Issue #4991: os.fdopen now raises an OSError for invalid file descriptors. |
| |
| - Issue #4838: When a module is deallocated, free the memory backing the |
| optional module state data. |
| |
| - Issue #4910: Rename nb_long slot to nb_reserved, and change its |
| type to (void *). |
| |
| - Issue #4935: The overflow checking code in the expandtabs() method common |
| to str, bytes and bytearray could be optimized away by the compiler, letting |
| the interpreter segfault instead of raising an error. |
| |
| - Issue #3720: Fix a crash when an iterator modifies its class and removes its |
| __next__ method. |
| |
| - Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API |
| function no longer attempt to call the __long__ slot to convert an object |
| to an integer. Only the __int__ and __trunc__ slots are examined. |
| |
| - Issue #4893: Use NT threading on CE. |
| |
| - Issue #4915: Port sysmodule to Windows CE. |
| |
| - Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The |
| common cases are optimized thanks to a dedicated fast path and a moderate |
| amount of loop unrolling. |
| |
| - Issue #4074: Change the criteria for doing a full garbage collection (i.e. |
| collecting the oldest generation) so that allocating lots of objects without |
| destroying them does not show quadratic performance. Based on a proposal by |
| Martin von Löwis at |
| http://mail.python.org/pipermail/python-dev/2008-June/080579.html. |
| |
| - Issue #4604: Some objects of the I/O library could still be used after |
| having been closed (for instance, a read() call could return some |
| previously buffered data). Patch by Dmitry Vasiliev. |
| |
| - Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line |
| flag to work properly. Furthermore, when specifying -u, the text stdout |
| and stderr streams have line-by-line buffering enabled (the default being |
| to buffer arbitrary chunks of data). |
| |
| - The internal table, _PyLong_DigitValue, is now an array of unsigned chars |
| instead of ints (reducing its size from 4 to 8 times thereby reducing |
| Python's overall memory). |
| |
| - Issue #1180193: When importing a module from a .pyc (or .pyo) file with |
| an existing .py counterpart, override the co_filename attributes of all |
| code objects if the original filename is obsolete (which can happen if the |
| file has been renamed, moved, or if it is accessed through different paths). |
| Patch by Ziga Seilnacht and Jean-Paul Calderone. |
| |
| - Issue #4580: Fix slicing of memoryviews when the item size is greater than |
| one byte. Also fixes the meaning of len() so that it returns the number of |
| items, rather than the size in bytes. |
| |
| - Issue #4075: Use OutputDebugStringW in Py_FatalError. |
| |
| - Issue #4747: When the terminal does not use utf-8, executing a script with |
| non-ascii characters in its name could fail with a "SyntaxError: None" error. |
| |
| - Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open |
| file with `bytes' filename on Windows. |
| |
| - Issue #3680: Reference cycles created through a dict, set or deque iterator |
| did not get collected. |
| |
| - Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types |
| where the tp_hash and tp_dict slots are both NULL. |
| |
| - Issue #4759: None is now allowed as the first argument of |
| bytearray.translate(). It was always allowed for bytes.translate(). |
| |
| - Added test case to ensure attempts to read from a file opened for writing |
| fail. |
| |
| - Issue #3106: Speedup some comparisons (str/str and int/int). |
| |
| - Issue #2183: Simplify and optimize bytecode for list, dict and set |
| comprehensions. Original patch for list comprehensions by Neal Norwitz. |
| |
| - Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always |
| print elapsed times, not only when some objects are uncollectable / |
| unreachable. Original patch by Neil Schemenauer. |
| |
| - Issue #3439: Add a bit_length method to int. |
| |
| - Issue #2173: When getting device encoding, check that return value of |
| nl_langinfo is not the empty string. This was causing silent build |
| failures on OS X. |
| |
| - Issue #4597: Fixed several opcodes that weren't always propagating |
| exceptions. |
| |
| - Issue #4589: Fixed exception handling when the __exit__ function of a |
| context manager returns a value that cannot be converted to a bool. |
| |
| - Issue #4445: Replace "sizeof(PyBytesObject)" with |
| "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for |
| bytes instances. On a typical machine this saves 3 bytes of memory |
| (on average) per allocation of a bytes instance. |
| |
| - Issue #4533: File read operation was dreadfully slow due to a slowly |
| growing read buffer. Fixed by using the same growth rate algorithm as |
| Python 2.x. |
| |
| - Issue #4509: Various issues surrounding resize of bytearray objects to |
| which there are buffer exports (e.g. memoryview instances). |
| |
| - Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()`` |
| method on file objects with closefd=False. The file descriptor is still |
| kept open but the file object behaves like a closed file. The ``FileIO`` |
| object also got a new readonly attribute ``closefd``. |
| |
| - Issue #4569: Interpreter crash when mutating a memoryview with an item size |
| larger than 1. |
| |
| - Issue #4748: Lambda generators no longer return a value. |
| |
| - The re.sub(), re.subn() and re.split() functions now accept a flags parameter. |
| |
| - Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call |
| PyUnicode_DecodeUTF8() once, remember the result and output it in a second |
| step. This avoids problems with counting UTF-8 bytes that ignores the effect |
| of using the replace error handler in PyUnicode_DecodeUTF8(). |
| |
| Library |
| ------- |
| |
| - Issue #7071: byte-compilation in Distutils is now done with respect to |
| sys.dont_write_bytecode. |
| |
| - Issue #7066: archive_util.make_archive now restores the cwd if an error is |
| raised. Initial patch by Ezio Melotti. |
| |
| - Issue #6516: Added owner/group support when creating tar archives in |
| Distutils. |
| |
| - Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils. |
| |
| - Issue #6163: Fixed HP-UX runtime library dir options in |
| distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and |
| Michael Haubenwallner. |
| |
| - Issue #6693: New functions in site.py to get user/global site packages paths. |
| |
| - Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when |
| opening an empty or very small file. |
| |
| - Issue #6545: Removed assert statements in distutils.Extension, so the |
| behavior is similar when used with -O. |
| |
| - unittest has been split up into a package. All old names should still work. |
| |
| - Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler |
| uses the same refactored function to get gcc/ld/dllwrap versions numbers. |
| It's `distutils.util.get_compiler_versions`. Added deprecation warnings |
| for the obsolete get_versions() functions. |
| |
| - Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list |
| |
| - Issue #6314: logging: Extra checks on the "level" argument in more places. |
| |
| - Issue #2622: Fixed an ImportError when importing email.messsage from a |
| standalone application built with py2exe or py2app. |
| |
| - Issue #6455: Fixed test_build_ext under win32. |
| |
| - Issue #6377: Enabled the compiler option, and deprecate its usage as an |
| attribute. |
| |
| - Issue #6413: Fixed the log level in distutils.dist for announce. |
| |
| - Issue #6403: Fixed package path usage in build_ext. |
| |
| - Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was |
| unconditionally calling "os.close(sys.stdin.fileno())" resulting in file |
| descriptor errors |
| |
| - Issue #6365: Distutils build_ext inplace mode was copying the compiled |
| extension in a subdirectory if the extension name had dots. |
| |
| - Issue #6164: Added an AIX specific linker argument in Distutils |
| unixcompiler. Original patch by Sridhar Ratnakumar. |
| |
| - Issue #6286: Now Distutils upload command is based on urllib2 instead of |
| httplib, allowing the usage of http_proxy. |
| |
| - Issue #6287: Added the license field in Distutils documentation. |
| |
| - Issue #6263: Fixed syntax error in distutils.cygwincompiler. |
| |
| - Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$` |
| in Makefiles. This prevents compile errors when using syntax like: |
| `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe. |
| |
| - Issue #6131: test_modulefinder leaked when run after test_distutils. |
| Patch by Hirokazu Yamamoto. |
| |
| - Issue #6048: Now Distutils uses the tarfile module in archive_util. |
| |
| - Issue #6062: In distutils, fixed the package option of build_ext. Feedback |
| and tests on pywin32 by Tim Golden. |
| |
| - Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto. |
| |
| - Issue #6046: Fixed the library extension when distutils build_ext is used |
| inplace. Initial patch by Roumen Petrov. |
| |
| - Issue #6041: Now distutils `sdist` and `register` commands use `check` as a |
| subcommand. |
| |
| - Issue #6022: a test file was created in the current working directory by |
| test_get_outputs in Distutils. |
| |
| - Issue #5977: distutils build_ext.get_outputs was not taking into account the |
| inplace option. Initial patch by kxroberto. |
| |
| - Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken |
| for old-style extensions. |
| |
| - Issue #5976: Fixed Distutils test_check_environ. |
| |
| - Issue #5941: Distutils build_clib command was not working anymore because |
| of an incomplete costumization of the archiver command. Added ARFLAGS in the |
| Makefile besides AR and make Distutils use it. Original patch by David |
| Cournapeau. |
| |
| - Issue #2245: aifc now skips chunk types it doesn't recognize, per spec. |
| |
| - Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive |
| anymore. |
| |
| - Issue #5810: Fixed Distutils test_build_scripts so it uses |
| sysconfig.get_config_vars. |
| |
| - Issue #4951: Fixed failure in test_httpservers. |
| |
| - Issue #5795: Fixed test_distutils failure on Debian ppc. |
| |
| - Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries. |
| |
| - Issue #5741: don't disallow "%%" (which is an escape for "%") when setting |
| a value in SafeConfigParser. |
| |
| - Issue #5732: added a new command in Distutils: check. |
| |
| - Issue #5731: Distutils bdist_wininst no longer worked on non-Windows |
| platforms. Initial patch by Paul Moore. |
| |
| - Issue #5095: Added bdist_msi to the list of bdist supported formats. |
| Initial fix by Steven Bethard. |
| |
| - Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases. |
| Initial fix by Wayne Davison. |
| |
| - Issue #5694: removed spurious test output in Distutils (test_clean). |
| |
| - Issue #1326077: fix the formatting of SyntaxErrors by the traceback module. |
| |
| - Issue #1665206 (partially): Move imports in cgitb to the top of the module |
| instead of performing them in functions. Helps prevent import deadlocking in |
| threads. |
| |
| - Issue #2522: locale.format now checks its first argument to ensure it has |
| been passed only one pattern, avoiding mysterious errors where it appeared |
| that it was failing to do localization. |
| |
| - Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg |
| Brandl. |
| |
| - Issue #1222: locale.format() bug when the thousands separator is a space |
| character. |
| |
| - Issue #5472: Fixed distutils.test_util tear down. Original patch by |
| Tim Golden. |
| |
| - collections.deque() objects now have a read-only attribute called maxlen. |
| |
| - Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after |
| it is has been populated and properly configured in order to prevent |
| window flashing. |
| |
| - Issue #4792: Prevent a segfault in _tkinter by using the |
| guaranteed to be safe interp argument given to the PythonCmd in place of |
| the Tcl interpreter taken from a PythonCmd_ClientData. |
| |
| - Issue #5193: Guarantee that tkinter.Text.search returns a string. |
| |
| - Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler. |
| Original patch by Akira Kitada. |
| |
| - Issue #5334: array.fromfile() failed to insert values when EOFError was raised. |
| |
| - Issue #5385: Fixed mmap crash after resize failure on windows. |
| |
| - Issue #5179: Fixed subprocess handle leak on failure on windows. |
| |
| - PEP 372: Added collections.OrderedDict(). |
| |
| - The _asdict() for method for namedtuples now returns an OrderedDict(). |
| |
| - configparser now defaults to using an ordered dictionary. |
| |
| - Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes |
| import guess_extension`` was used. |
| |
| - Issue #1733986: Fixed mmap crash in accessing elements of second map object |
| with same tagname but larger size than first map. (Windows) |
| |
| - Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer |
| overrun. |
| |
| - Issue #1533164: Installed but not listed *.pyo was breaking Distutils |
| bdist_rpm command. |
| |
| - Issue #5378: added --quiet option to Distutils bdist_rpm command. |
| |
| - Issue #5052: make Distutils compatible with 2.3 again. |
| |
| - Issue #5316: Fixed buildbot failures introduced by multiple inheritance |
| in Distutils tests. |
| |
| - Issue #5287: Add exception handling around findCaller() call to help out |
| IronPython. |
| |
| - Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0, |
| The file was resized to wrong size. |
| |
| - Issue #5292: Fixed mmap crash on its boundary access m[len(m)]. |
| |
| - Issue #2279: distutils.sdist.add_defaults now add files |
| from the package_data and the data_files metadata. |
| |
| - Issue #5257: refactored all tests in distutils, so they use |
| support.TempdirManager, to avoid writing in the tests directory. |
| |
| - Issue #4524: distutils build_script command failed with --with-suffix=3. |
| Initial patch by Amaury Forgeot d'Arc. |
| |
| - Issue #2461: added tests for distutils.util |
| |
| - Issue #4998: The memory saving effect of __slots__ had been lost on Fractions |
| which inherited from numbers.py which did not have __slots__ defined. The |
| numbers hierarchy now has its own __slots__ declarations. |
| |
| - Issue #4631: Fix urlopen() result when an HTTP response uses chunked |
| encoding. |
| |
| - Issue #5203: Fixed ctypes segfaults when passing a unicode string to a |
| function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false). |
| |
| - Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored |
| under NT and OS2. Patch by Philip Jenvey. |
| |
| - Issue #5128: Make compileall properly inspect bytecode to determine if needs |
| to be recreated. This avoids a timing hole thanks to the old reliance on the |
| ctime of the files involved. |
| |
| - Issue #5122: Synchronize tk load failure check to prevent a potential |
| deadlock. |
| |
| - Issue #1818: collections.namedtuple() now supports a keyword argument |
| 'rename' which lets invalid fieldnames be automatically converted to |
| positional names in the form, _1, _2, ... |
| |
| - Issue #4890: Handle empty text search pattern in Tkinter.Text.search. |
| |
| - Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a |
| public documented method ``ZipImporter.get_filename()``. |
| |
| - Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support |
| the execution of packages by looking for and executing a ``__main__`` |
| submodule when a package name is supplied. Initial patch by Andi |
| Vajda. |
| |
| - Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will |
| not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in |
| Tkapp_Call when calling from a thread different than the one that created |
| the Tcl interpreter. Patch by Robert Hancock. |
| |
| - Issue #4285: Change sys.version_info to be a named tuple. Patch by |
| Ross Light. |
| |
| - Issue #1520877: Now distutils.sysconfig reads $AR from the |
| environment/Makefile. Patch by Douglas Greiman. |
| |
| - Issue #1276768: The verbose option was not used in the code of |
| distutils.file_util and distutils.dir_util. |
| |
| - Issue #5132: Fixed trouble building extensions under Solaris with |
| --enabled-shared activated. Initial patch by Dave Peterson. |
| |
| - Issue #1581476: Always use the Tcl global namespace when calling into Tcl. |
| |
| - The shelve module now defaults to pickle protocol 3. |
| |
| - Fix a bug in the trace module where a bytes object from co_lnotab had its |
| items being passed through ord(). |
| |
| - Issue #2047: shutil.move() could believe that its destination path was |
| inside its source path if it began with the same letters (e.g. "src" vs. |
| "src.new"). |
| |
| - Added the ttk module. See issue #2983: Ttk support for Tkinter. |
| |
| - Removed isSequenceType(), isMappingType, and isNumberType() from the |
| operator module; use the abstract base classes instead. Also removed |
| the repeat() function; use mul() instead. |
| |
| - Issue #5021: doctest.testfile() did not create __name__ and |
| collections.namedtuple() relied on __name__ being defined. |
| |
| - Backport importlib from Python 3.1. Only the import_module() function has |
| been backported to help facilitate transitions from 2.7 to 3.1. |
| |
| - Issue #1885: distutils. When running sdist with --formats=tar,gztar |
| the tar file was overriden by the gztar one. |
| |
| - Issue #4863: distutils.mwerkscompiler has been removed. |
| |
| - Added a new itertools functions: combinations_with_replacement() |
| and compress(). |
| |
| - Issue #5032: added a step argument to itertools.count() and |
| allowed non-integer arguments. |
| |
| - Fix and properly document the multiprocessing module's logging |
| support, expose the internal levels and provide proper usage |
| examples. |
| |
| - Issue #1672332: fix unpickling of subnormal floats, which was |
| producing a ValueError on some platforms. |
| |
| - Issue #3881: Help Tcl to load even when started through the |
| unreadable local symlink to "Program Files" on Vista. |
| |
| - Issue #4710: Extract directories properly in the zipfile module; |
| allow adding directories to a zipfile. |
| |
| - Issue #3807: _multiprocessing build fails when configure is passed |
| --without-threads argument. When this occurs, _multiprocessing will |
| be disabled, and not compiled. |
| |
| - Issue #5008: When a file is opened in append mode with the new IO library, |
| do an explicit seek to the end of file (so that e.g. tell() returns the |
| file size rather than 0). This is consistent with the behaviour of the |
| traditional 2.x file object. |
| |
| - Issue #5013: Fixed a bug in FileHandler which occurred when the delay |
| parameter was set. |
| |
| - Issue #4842: Always append a trailing 'L' when pickling longs using |
| pickle protocol 0. When reading, the 'L' is optional. |
| |
| - Add the importlib package. |
| |
| - Issue #4301: Patch the logging module to add processName support, remove |
| _check_logger_class from multiprocessing. |
| |
| - Issue #3325: Remove python2.x try: except: imports for old cPickle from |
| multiprocessing. |
| |
| - Issue #4959: inspect.formatargspec now works for keyword only arguments |
| without defaults. |
| |
| - Issue #3321: _multiprocessing.Connection() doesn't check handle; added checks |
| for *nix machines for negative handles and large int handles. Without this check |
| it is possible to segfault the interpreter. |
| |
| - Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue |
| in sharedctypes.py. |
| |
| - Issue #1225107: inspect.isclass() returned True for instances with a custom |
| __getattr__. |
| |
| - Issue #3826 and #4791: The socket module now closes the underlying socket |
| appropriately when it is being used via socket.makefile() objects |
| rather than delaying the close by waiting for garbage collection to do it. |
| |
| - Issue #1696199: Add collections.Counter() for rapid and convenient |
| counting. |
| |
| - Issue #3860: GzipFile and BZ2File now support the context manager protocol. |
| |
| - Issue #4867: Fixed a crash in ctypes when passing a string to a |
| function without defining argtypes. |
| |
| - Issue #4272: Add an optional argument to the GzipFile constructor to override |
| the timestamp in the gzip stream. The default value remains the current time. |
| The information can be used by e.g. gunzip when decompressing. Patch by |
| Jacques Frechet. |
| |
| - Restore Python 2.3 compatibility for decimal.py. |
| |
| - Issue #3638: Remove functions from _tkinter module level that depend on |
| TkappObject to work with multiple threads. |
| |
| - Issue #4718: Adapt the wsgiref package so that it actually works with |
| Python 3.x, in accordance with the `official amendments of the spec |
| <http://www.wsgi.org/wsgi/Amendments_1.0>`_. |
| |
| - Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float() |
| to the decimal module. |
| |
| - Fractions.from_float() no longer loses precision for integers too big to |
| cast as floats. |
| |
| - Issue #4812: add missing underscore prefix to some internal-use-only |
| constants in the decimal module. (Dec_0 becomes _Dec_0, etc.) |
| |
| - Issue #4790: The nsmallest() and nlargest() functions in the heapq module |
| did unnecessary work in the common case where no key function was specified. |
| |
| - Issue #4795: inspect.isgeneratorfunction() returns False instead of None when |
| the function is not a generator. |
| |
| - Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case |
| no MSVC compiler is found under Windows. Original patch by Philip Jenvey. |
| |
| - Issue #4646: distutils was choking on empty options arg in the setup |
| function. Original patch by Thomas Heller. |
| |
| - Issue #3767: Convert Tk object to string in tkColorChooser. |
| |
| - Issue #3248: Allow placing ScrolledText in a PanedWindow. |
| |
| - Issue #4444: Allow assertRaises() to be used as a context handler, so that |
| the code under test can be written inline if more practical. |
| |
| - Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@') |
| works as expected in the interactive environment. |
| |
| - Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by |
| Gabriel Genellina. |
| |
| - Issue #4574: reading an UTF16-encoded text file crashes if \r on 64-char |
| boundary. |
| |
| - Issue #4223: inspect.getsource() will now correctly display source code |
| for packages loaded via zipimport (or any other conformant PEP 302 |
| loader). Original patch by Alexander Belopolsky. |
| |
| - Issue #4201: pdb can now access and display source code loaded via |
| zipimport (or any other conformant PEP 302 loader). Original patch by |
| Alexander Belopolsky. |
| |
| - Issue #4197: doctests in modules loaded via zipimport (or any other PEP |
| 302 conformant loader) will now work correctly in most cases (they |
| are still subject to the constraints that exist for all code running |
| from inside a module loaded via a PEP 302 loader and attempting to |
| perform IO operations based on __file__). Original patch by |
| Alexander Belopolsky. |
| |
| - Issues #4082 and #4512: Add runpy support to zipimport in a manner that |
| allows backporting to maintenance branches. Original patch by |
| Alexander Belopolsky. |
| |
| - Issue #4163: textwrap module: allow word splitting on a hyphen preceded by |
| a non-ASCII letter. |
| |
| - Issue #4616: TarFile.utime(): Restore directory times on Windows. |
| |
| - Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the |
| codec cannot be found. This is for compatibility with the builtin behavior. |
| |
| - Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to |
| give correct results in the case where one argument is a quiet NaN |
| and the other is a finite number that requires rounding. |
| |
| - Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat |
| libs. |
| |
| - Added the subprocess.check_call_output() convenience function to get output |
| from a subprocess on success or raise an exception on error. |
| |
| - Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to |
| support unusual filenames (such as those containing semi-colons) in |
| Content-Disposition headers. |
| |
| - Issue #4384: Added logging integration with warnings module using |
| captureWarnings(). This change includes a NullHandler which does nothing; |
| it will be of use to library developers who want to avoid the "No handlers |
| could be found for logger XXX" message which can appear if the library user |
| doesn't configure logging. |
| |
| - Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an |
| exception. |
| |
| - Issue #4529: fix the parser module's validation of try-except-finally |
| statements. |
| |
| - Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument, |
| not a malformed option. |
| |
| - Added the subprocess.check_output() convenience function to get output |
| from a subprocess on success or raise an exception on error. |
| |
| - Issue #4542: On Windows, binascii.crc32 still accepted str as binary input; |
| the corresponding tests now pass. |
| |
| - Issue #4537: webbrowser.UnixBrowser would fail to open the browser because |
| it was calling the wrong open() function. |
| |
| - Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to |
| support unusual filenames (such as those containing semi-colons) in |
| Content-Disposition headers. |
| |
| - Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on |
| biarch systems. Try to rely on ldconfig only, without using objdump and gcc. |
| |
| - Issue #5104: The socket module now raises OverflowError when 16-bit port and |
| protocol numbers are supplied outside the allowed 0-65536 range on bind() |
| and getservbyport(). |
| |
| - Windows locale mapping updated to Vista. |
| |
| Tools/Demos |
| ----------- |
| |
| - Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1, |
| and make it 2.6-compatible. |
| |
| - Ttk demos added in Demo/tkinter/ttk/ |
| |
| - Issue #4677: add two list comprehension tests to pybench. |
| |
| |
| Build |
| ----- |
| |
| - Issue #6094: Build correctly with Subversion 1.7. |
| |
| - Issue #5847: Remove -n switch on "Edit with IDLE" menu item. |
| |
| - Issue #5726: Make Modules/ld_so_aix return the actual exit code of the |
| linker, rather than always exit successfully. Patch by Floris Bruynooghe. |
| |
| - Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify |
| the order that backends for the dbm extension are checked. |
| |
| - Link the shared python library with $(MODLIBS). |
| |
| - Issue #5134: Silence compiler warnings when compiling sqlite with VC++. |
| |
| - Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows. |
| |
| - Issue #4895: Use _strdup on Windows CE. |
| |
| - Issue #4472: "configure --enable-shared" now works on OSX |
| |
| - Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds. |
| |
| - Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs". |
| |
| - Issue #4289: Remove Cancel button from AdvancedDlg. |
| |
| - Issue #1656675: Register a drop handler for .py* files on Windows. |
| |
| - Issue #4120: Exclude manifest from extension modules in VS2008. |
| |
| - Issue #4091: Install pythonxy.dll in system32 again. |
| |
| - Issue #4018: Disable "for me" installations on Vista. |
| |
| - Issue #3758: Add ``patchcheck`` build target to .PHONY. |
| |
| - Issue #4204: Fixed module build errors on FreeBSD 4. |
| |
| |
| C-API |
| ----- |
| |
| - Issue #6624: yArg_ParseTuple with "s" format when parsing argument with |
| NUL: Bogus TypeError detail string. |
| |
| - Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError |
| for negative arguments. Previously, it raised TypeError. |
| |
| - Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'. |
| |
| - Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when |
| the GIL is released, or owned by another thread. |
| |
| - Issue #4122: On Windows, fix a compilation error when using the |
| Py_UNICODE_ISSPACE macro in an extension module. |
| |
| |
| Extension Modules |
| ----------------- |
| |
| - Issue #3745: Fix hashlib to always reject unicode and non buffer-api |
| supporting objects as input no matter how it was compiled (built in |
| implementations or external openssl library). |
| |
| - Issue #4397: Fix occasional test_socket failure on OS X. |
| |
| - Issue #4279: Fix build of parsermodule under Cygwin. |
| |
| - Issue #4751: hashlib now releases the GIL when hashing large buffers |
| (with a hardwired threshold of 2048 bytes), allowing better parallelization |
| on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner. |
| |
| - Issue #4051: Prevent conflict of UNICODE macros in cPickle. |
| |
| - Issue #4738: Each zlib object now has a separate lock, allowing to compress |
| or decompress several streams at once on multi-CPU systems. Also, the GIL |
| is now released when computing the CRC of a large buffer. Patch by ebfe. |
| |
| - Issue #4228: Pack negative values the same way as 2.4 in struct's L format. |
| |
| - Issue #1040026: Fix os.times result on systems where HZ is incorrect. |
| |
| - Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris, |
| OpenBSD. |
| |
| - Issue #4583: array.array would not always prohibit resizing when a buffer |
| has been exported, resulting in an interpreter crash when accessing the |
| buffer. |
| |
| |
| - Issue #5228: Make functools.partial objects can now be pickled. |
| |
| Tests |
| ----- |
| |
| - Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running |
| regression tests in parallel, shortening the total runtime. |
| |
| - Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to |
| Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate |
| the same behaviour as test_ttkguionly (and now also test_tk) which is to |
| skip the tests if DISPLAY is defined but can't be used. |
| |
| - regrtest no longer treats ImportError as equivalent to SkipTest. Imports |
| that should cause a test to be skipped are now done using import_module |
| from test support, which does the conversion. |
| |
| - Issue #5083: New 'gui' resource for regrtest. |
| |
| |
| Docs |
| ---- |
| |
| |
| **(For information about older versions, consult the HISTORY file.)** |