diff options
Diffstat (limited to 'Misc/NEWS')
| -rw-r--r-- | Misc/NEWS | 769 |
1 files changed, 734 insertions, 35 deletions
@@ -2,8 +2,8 @@ Python News +++++++++++ -What's New in Python 3.6.1 release candidate 1? -=============================================== +What's New in Python 3.7.0 alpha 1? +=================================== *Release date: XXXX-XX-XX* @@ -20,6 +20,12 @@ Core and Builtins - Issue #29159: Fix regression in bytes(x) when x.__index__() raises Exception. +- Issue #29049: Call _PyObject_GC_TRACK() lazily when calling Python function. + Calling function is up to 5% faster. + +- Issue #28927: bytes.fromhex() and bytearray.fromhex() now ignore all ASCII + whitespace, not only spaces. Patch by Robert Xiao. + - Issue #28932: Do not include <sys/random.h> if it does not exist. - Issue #25677: Correct the positioning of the syntax error caret for @@ -28,6 +34,12 @@ Core and Builtins - Issue #29000: Fixed bytes formatting of octals with zero padding in alternate form. +- Issue #18896: Python function can now have more than 255 parameters. + collections.namedtuple() now supports tuples with more than 255 elements. + +- Issue #28596: The preferred encoding is UTF-8 on Android. Patch written by + Chi Hsuan Yen. + - Issue #26919: On Android, operating system data is now always encoded/decoded to/from UTF-8, instead of the locale encoding to avoid inconsistencies with os.fsencode() and os.fsdecode() which are already using UTF-8. @@ -35,6 +47,10 @@ Core and Builtins - Issue #28991: functools.lru_cache() was susceptible to an obscure reentrancy bug triggerable by a monkey-patched len() function. +- Issue #28147: Fix a memory leak in split-table dictionaries: setattr() + must not convert combined table into split table. Patch written by INADA + Naoki. + - Issue #28739: f-string expressions are no longer accepted as docstrings and by ast.literal_eval() even if they do not include expressions. @@ -44,9 +60,161 @@ Core and Builtins - Issue #28918: Fix the cross compilation of xxlimited when Python has been built with Py_DEBUG defined. +- Issue #23722: Rather than silently producing a class that doesn't support + zero-argument ``super()`` in methods, failing to pass the new + ``__classcell__`` namespace entry up to ``type.__new__`` now results in a + ``DeprecationWarning`` and a class that supports zero-argument ``super()``. + +- Issue #28797: Modifying the class __dict__ inside the __set_name__ method of + a descriptor that is used inside that class no longer prevents calling the + __set_name__ method of other descriptors. + +- Issue #28799: Remove the ``PyEval_GetCallStats()`` function and deprecate + the untested and undocumented ``sys.callstats()`` function. Remove the + ``CALL_PROFILE`` special build: use the :func:`sys.setprofile` function, + :mod:`cProfile` or :mod:`profile` to profile function calls. + +- Issue #12844: More than 255 arguments can now be passed to a function. + +- Issue #28782: Fix a bug in the implementation ``yield from`` when checking + if the next instruction is YIELD_FROM. Regression introduced by WORDCODE + (issue #26647). + +- Issue #28774: Fix error position of the unicode error in ASCII and Latin1 + encoders when a string returned by the error handler contains multiple + non-encodable characters (non-ASCII for the ASCII codec, characters out + of the U+0000-U+00FF range for Latin1). + - Issue #28731: Optimize _PyDict_NewPresized() to create correct size dict. Improve speed of dict literal with constant keys up to 30%. +- Issue #28532: Show sys.version when -V option is supplied twice. + +- Issue #27100: The with-statement now checks for __enter__ before it + checks for __exit__. This gives less confusing error messages when + both methods are missing. Patch by Jonathan Ellington. + +- Issue #28746: Fix the set_inheritable() file descriptor method on platforms + that do not have the ioctl FIOCLEX and FIONCLEX commands. + +- Issue #26920: Fix not getting the locale's charset upon initializing the + interpreter, on platforms that do not have langinfo. + +- Issue #28648: Fixed crash in Py_DecodeLocale() in debug build on Mac OS X + when decode astral characters. Patch by Xiang Zhang. + +- Issue #28665: Improve speed of the STORE_DEREF opcode by 40%. + +- Issue #19398: Extra slash no longer added to sys.path components in case of + empty compile-time PYTHONPATH components. + +- Issue #28621: Sped up converting int to float by reusing faster bits counting + implementation. Patch by Adrian Wielgosik. + +- Issue #28580: Optimize iterating split table values. + Patch by Xiang Zhang. + +- Issue #28583: PyDict_SetDefault didn't combine split table when needed. + Patch by Xiang Zhang. + +- Issue #28128: Deprecation warning for invalid str and byte escape + sequences now prints better information about where the error + occurs. Patch by Serhiy Storchaka and Eric Smith. + +- Issue #28509: dict.update() no longer allocate unnecessary large memory. + +- Issue #28426: Fixed potential crash in PyUnicode_AsDecodedObject() in debug + build. + +- Issue #28517: Fixed of-by-one error in the peephole optimizer that caused + keeping unreachable code. + +- Issue #28214: Improved exception reporting for problematic __set_name__ + attributes. + +- Issue #23782: Fixed possible memory leak in _PyTraceback_Add() and exception + loss in PyTraceBack_Here(). + +- Issue #28183: Optimize and cleanup dict iteration. + +- Issue #26081: Added C implementation of asyncio.Future. + Original patch by Yury Selivanov. + +- Issue #28379: Added sanity checks and tests for PyUnicode_CopyCharacters(). + Patch by Xiang Zhang. + +- Issue #28376: The type of long range iterator is now registered as Iterator. + Patch by Oren Milman. + +- Issue #28376: Creating instances of range_iterator by calling range_iterator + type now is disallowed. Calling iter() on range instance is the only way. + Patch by Oren Milman. + +- Issue #26906: Resolving special methods of uninitialized type now causes + implicit initialization of the type instead of a fail. + +- Issue #18287: PyType_Ready() now checks that tp_name is not NULL. + Original patch by Niklas Koep. + +- Issue #24098: Fixed possible crash when AST is changed in process of + compiling it. + +- Issue #28201: Dict reduces possibility of 2nd conflict in hash table when + hashes have same lower bits. + +- Issue #28350: String constants with null character no longer interned. + +- Issue #26617: Fix crash when GC runs during weakref callbacks. + +- Issue #27942: String constants now interned recursively in tuples and frozensets. + +- Issue #28289: ImportError.__init__ now resets not specified attributes. + +- Issue #21578: Fixed misleading error message when ImportError called with + invalid keyword args. + +- Issue #28203: Fix incorrect type in complex(1.0, {2:3}) error message. + Patch by Soumya Sharma. + +- Issue #28086: Single var-positional argument of tuple subtype was passed + unscathed to the C-defined function. Now it is converted to exact tuple. + +- Issue #28214: Now __set_name__ is looked up on the class instead of the + instance. + +- Issue #27955: Fallback on reading /dev/urandom device when the getrandom() + syscall fails with EPERM, for example when blocked by SECCOMP. + +- Issue #28192: Don't import readline in isolated mode. + +- Issue #27441: Remove some redundant assignments to ob_size in longobject.c. + Thanks Oren Milman. + +- Issue #27222: Clean up redundant code in long_rshift function. Thanks + Oren Milman. + +- Upgrade internal unicode databases to Unicode version 9.0.0. + +- Issue #28131: Fix a regression in zipimport's compile_source(). zipimport + should use the same optimization level as the interpreter. + +- Issue #28126: Replace Py_MEMCPY with memcpy(). Visual Studio can properly + optimize memcpy(). + +- Issue #28120: Fix dict.pop() for splitted dictionary when trying to remove a + "pending key" (Not yet inserted in split-table). Patch by Xiang Zhang. + +- Issue #26182: Raise DeprecationWarning when async and await keywords are + used as variable/attribute/class/function name. + +- Issue #26182: Fix a refleak in code that raises DeprecationWarning. + +- Issue #28721: Fix asynchronous generators aclose() and athrow() to + handle StopAsyncIteration propagation properly. + +- Issue #26110: Speed-up method calls: add LOAD_METHOD and CALL_METHOD + opcodes. + Extension Modules ----------------- @@ -58,6 +226,20 @@ Library - Issue #29444: Fixed out-of-bounds buffer access in the group() method of the match object. Based on patch by WGH. +- Issue #29377: Add SlotWrapperType, MethodWrapperType, and + MethodDescriptorType built-in types to types module. + Original patch by Manuel Krebber. + +- Issue #29218: Unused install_misc command is now removed. It has been + documented as unused since 2000. Patch by Eric N. Vander Weele. + +- Issue #29368: The extend() method is now called instead of the append() + method when unpickle collections.deque and other list-like objects. + This can speed up unpickling to 2 times. + +- Issue #29338: The help of a builtin or extension class now includes the + constructor signature if __text_signature__ is provided for the class. + - Issue #29335: Fix subprocess.Popen.wait() when the child process has exited to a stopped instead of terminated state (ex: when under ptrace). @@ -66,18 +248,29 @@ Library - Issue #28735: Fixed the comparison of mock.MagickMock with mock.ANY. -- Issue #29316: Restore the provisional status of typing module, add - corresponding note to documentation. Patch by Ivan L. +- Issue #29197: Removed deprecated function ntpath.splitunc(). + +- Issue #29210: Removed support of deprecated argument "exclude" in + tarfile.TarFile.add(). - Issue #29219: Fixed infinite recursion in the repr of uninitialized ctypes.CDLL instances. -- Issue #29011: Fix an important omission by adding Deque to the typing module. +- Issue #29192: Removed deprecated features in the http.cookies module. + +- Issue #29193: A format string argument for string.Formatter.format() + is now positional-only. + +- Issue #29195: Removed support of deprecated undocumented keyword arguments + in methods of regular expression objects. - Issue #28969: Fixed race condition in C implementation of functools.lru_cache. KeyError could be raised when cached function with full cache was simultaneously called from differen threads with the same uncached arguments. +- Issue #20804: The unittest.mock.sentinel attributes now preserve their + identity when they are copied or pickled. + - Issue #29142: In urllib.request, suffixes in no_proxy environment variable with leading dots could match related hostnames again (e.g. .b.c matches a.b.c). Patch by Milan Oberkirch. @@ -85,31 +278,20 @@ Library - Issue #28961: Fix unittest.mock._Call helper: don't ignore the name parameter anymore. Patch written by Jiajun Huang. -- Issue #29203: functools.lru_cache() now respects PEP 468 and preserves - the order of keyword arguments. f(a=1, b=2) is now cached separately - from f(b=2, a=1) since both calls could potentially give different results. - - Issue #15812: inspect.getframeinfo() now correctly shows the first line of a context. Patch by Sam Breese. +- Issue #28985: Update authorizer constants in sqlite3 module. + Patch by Dingyuan Wang. + - Issue #29094: Offsets in a ZIP file created with extern file object and modes "w" and "x" now are relative to the start of the file. -- Issue #29085: Allow random.Random.seed() to use high quality OS randomness - rather than the pid and time. - -- Issue #29061: Fixed bug in secrets.randbelow() which would hang when given - a negative input. Patch by Brendan Donegan. - - Issue #29079: Prevent infinite loop in pathlib.resolve() on Windows - Issue #13051: Fixed recursion errors in large or resized curses.textpad.Textbox. Based on patch by Tycho Andersen. -- Issue #29119: Fix weakrefs in the pure python version of - collections.OrderedDict move_to_end() method. - Contributed by Andra Bogildea. - - Issue #9770: curses.ascii predicates now work correctly with negative integers. @@ -118,9 +300,6 @@ Library - Issue 28923: Remove editor artifacts from Tix.py. -- Issue #29055: Neaten-up empty population error on random.choice() - by suppressing the upstream exception. - - Issue #28871: Fixed a crash when deallocate deep ElementTree. - Issue #19542: Fix bugs in WeakValueDictionary.setdefault() and @@ -130,30 +309,343 @@ Library - Issue #20191: Fixed a crash in resource.prlimit() when passing a sequence that doesn't own its elements as limits. +- Issue #16255: subprocess.Popen uses /system/bin/sh on Android as the shell, + instead of /bin/sh. + - Issue #28779: multiprocessing.set_forkserver_preload() would crash the forkserver process if a preloaded module instantiated some multiprocessing objects such as locks. -- Issue #28847: dbm.dumb now supports reading read-only files and no longer - writes the index file when it is not changed. - - Issue #26937: The chown() method of the tarfile.TarFile class does not fail now when the grp module cannot be imported, as for example on Android platforms. +- Issue #28847: dbm.dumb now supports reading read-only files and no longer + writes the index file when it is not changed. A deprecation warning is now + emitted if the index file is missed and recreated in the 'r' and 'w' modes + (will be an error in future Python releases). + +- Issue #27030: Unknown escapes consisting of ``'\'`` and an ASCII letter in + re.sub() replacement templates regular expressions now are errors. + +- Issue #28835: Fix a regression introduced in warnings.catch_warnings(): + call warnings.showwarning() if it was overriden inside the context manager. + +- Issue #27172: To assist with upgrades from 2.7, the previously documented + deprecation of ``inspect.getfullargspec()`` has been reversed. This decision + may be revisited again after the Python 2.7 branch is no longer officially + supported. + +- Issue #28740: Add sys.getandroidapilevel(): return the build time API version + of Android as an integer. Function only available on Android. + +- Issue #26273: Add new :data:`socket.TCP_CONGESTION` (Linux 2.6.13) and + :data:`socket.TCP_USER_TIMEOUT` (Linux 2.6.37) constants. Patch written by + Omar Sandoval. + +- Issue #28752: Restored the __reduce__() methods of datetime objects. + +- Issue #28727: Regular expression patterns, _sre.SRE_Pattern objects created + by re.compile(), become comparable (only x==y and x!=y operators). This + change should fix the issue #18383: don't duplicate warning filters when the + warnings module is reloaded (thing usually only done in unit tests). + +- Issue #20572: Remove the subprocess.Popen.wait endtime parameter. It was + deprecated in 3.4 and undocumented prior to that. + +- Issue #25659: In ctypes, prevent a crash calling the from_buffer() and + from_buffer_copy() methods on abstract classes like Array. + +- Issue #28548: In the "http.server" module, parse the protocol version if + possible, to avoid using HTTP 0.9 in some error responses. + +- Issue #19717: Makes Path.resolve() succeed on paths that do not exist. + Patch by Vajrasky Kok + +- Issue #28563: Fixed possible DoS and arbitrary code execution when handle + plural form selections in the gettext module. The expression parser now + supports exact syntax supported by GNU gettext. + +- Issue #28387: Fixed possible crash in _io.TextIOWrapper deallocator when + the garbage collector is invoked in other thread. Based on patch by + Sebastian Cufre. + +- Issue #27517: LZMA compressor and decompressor no longer raise exceptions if + given empty data twice. Patch by Benjamin Fogle. + +- Issue #28549: Fixed segfault in curses's addch() with ncurses6. + +- Issue #28449: tarfile.open() with mode "r" or "r:" now tries to open a tar + file with compression before trying to open it without compression. Otherwise + it had 50% chance failed with ignore_zeros=True. + +- Issue #23262: The webbrowser module now supports Firefox 36+ and derived + browsers. Based on patch by Oleg Broytman. + +- Issue #27939: Fixed bugs in tkinter.ttk.LabeledScale and tkinter.Scale caused + by representing the scale as float value internally in Tk. tkinter.IntVar + now works if float value is set to underlying Tk variable. + +- Issue #28255: calendar.TextCalendar.prweek() no longer prints a space after + a weeks's calendar. calendar.TextCalendar.pryear() no longer prints redundant + newline after a year's calendar. Based on patch by Xiang Zhang. + +- Issue #28255: calendar.TextCalendar.prmonth() no longer prints a space + at the start of new line after printing a month's calendar. Patch by + Xiang Zhang. + +- Issue #20491: The textwrap.TextWrapper class now honors non-breaking spaces. + Based on patch by Kaarle Ritvanen. + +- Issue #28353: os.fwalk() no longer fails on broken links. + +- Issue #28430: Fix iterator of C implemented asyncio.Future doesn't accept + non-None value is passed to it.send(val). + +- Issue #27025: Generated names for Tkinter widgets now start by the "!" prefix + for readability (was "`"). + +- Issue #25464: Fixed HList.header_exists() in tkinter.tix module by addin + a workaround to Tix library bug. + +- Issue #28488: shutil.make_archive() no longer adds entry "./" to ZIP archive. + +- Issue #25953: re.sub() now raises an error for invalid numerical group + reference in replacement template even if the pattern is not found in + the string. Error message for invalid group reference now includes the + group index and the position of the reference. + Based on patch by SilentGhost. + +- Issue #28469: timeit now uses the sequence 1, 2, 5, 10, 20, 50,... instead + of 1, 10, 100,... for autoranging. + +- Issue #28115: Command-line interface of the zipfile module now uses argparse. + Added support of long options. + +- Issue #18219: Optimize csv.DictWriter for large number of columns. + Patch by Mariatta Wijaya. + +- Issue #28448: Fix C implemented asyncio.Future didn't work on Windows. + +- Issue #23214: In the "io" module, the argument to BufferedReader and + BytesIO's read1() methods is now optional and can be -1, matching the + BufferedIOBase specification. + +- Issue #28480: Fix error building socket module when multithreading is + disabled. + +- Issue #28240: timeit: remove ``-c/--clock`` and ``-t/--time`` command line + options which were deprecated since Python 3.3. + +- Issue #28240: timeit now repeats the benchmarks 5 times instead of only 3 + to make benchmarks more reliable. + +- Issue #28240: timeit autorange now uses a single loop iteration if the + benchmark takes less than 10 seconds, instead of 10 iterations. + "python3 -m timeit -s 'import time' 'time.sleep(1)'" now takes 4 seconds + instead of 40 seconds. + +- Distutils.sdist now looks for README and setup.py files with case + sensitivity. This behavior matches that found in Setuptools 6.0 and + later. See `setuptools 100 + <https://github.com/pypa/setuptools/issues/100>`_ for rationale. + +- Issue #24452: Make webbrowser support Chrome on Mac OS X. Patch by + Ned Batchelder. + +- Issue #20766: Fix references leaked by pdb in the handling of SIGINT + handlers. + +- Issue #27998: Fixed bytes path support in os.scandir() on Windows. + Patch by Eryk Sun. + +- Issue #28317: The disassembler now decodes FORMAT_VALUE argument. + +- Issue #26293: Fixed writing ZIP files that starts not from the start of the + file. Offsets in ZIP file now are relative to the start of the archive in + conforming to the specification. + +- Issue #28380: unittest.mock Mock autospec functions now properly support + assert_called, assert_not_called, and assert_called_once. + +- Issue #28229: lzma module now supports pathlib. + +- Issue #28321: Fixed writing non-BMP characters with binary format in plistlib. + +- Issue #28225: bz2 module now supports pathlib. Initial patch by Ethan Furman. + +- Issue #28227: gzip now supports pathlib. Patch by Ethan Furman. + +- Issue #28332: Deprecated silent truncations in socket.htons and socket.ntohs. + Original patch by Oren Milman. + +- Issue #27358: Optimized merging var-keyword arguments and improved error + message when passing a non-mapping as a var-keyword argument. + +- Issue #28257: Improved error message when passing a non-iterable as + a var-positional argument. Added opcode BUILD_TUPLE_UNPACK_WITH_CALL. + +- Issue #28322: Fixed possible crashes when unpickle itertools objects from + incorrect pickle data. Based on patch by John Leitch. + +- Issue #28228: imghdr now supports pathlib. + +- Issue #28226: compileall now supports pathlib. + +- Issue #28314: Fix function declaration (C flags) for the getiterator() method + of xml.etree.ElementTree.Element. + +- Issue #28148: Stop using localtime() and gmtime() in the time + module. + + Introduced platform independent _PyTime_localtime API that is + similar to POSIX localtime_r, but available on all platforms. Patch + by Ed Schouten. + +- Issue #28253: Fixed calendar functions for extreme months: 0001-01 + and 9999-12. + + Methods itermonthdays() and itermonthdays2() are reimplemented so + that they don't call itermonthdates() which can cause datetime.date + under/overflow. + +- Issue #28275: Fixed possible use after free in the decompress() + methods of the LZMADecompressor and BZ2Decompressor classes. + Original patch by John Leitch. + +- Issue #27897: Fixed possible crash in sqlite3.Connection.create_collation() + if pass invalid string-like object as a name. Patch by Xiang Zhang. + +- Issue #18844: random.choices() now has k as a keyword-only argument + to improve the readability of common cases and come into line + with the signature used in other languages. + +- Issue #18893: Fix invalid exception handling in Lib/ctypes/macholib/dyld.py. + Patch by Madison May. + +- Issue #27611: Fixed support of default root window in the tkinter.tix module. + Added the master parameter in the DisplayStyle constructor. + +- Issue #27348: In the traceback module, restore the formatting of exception + messages like "Exception: None". This fixes a regression introduced in + 3.5a2. + +- Issue #25651: Allow falsy values to be used for msg parameter of subTest(). + +- Issue #27778: Fix a memory leak in os.getrandom() when the getrandom() is + interrupted by a signal and a signal handler raises a Python exception. + +- Issue #28200: Fix memory leak on Windows in the os module (fix + path_converter() function). + +- Issue #25400: RobotFileParser now correctly returns default values for + crawl_delay and request_rate. Initial patch by Peter Wirtz. + +- Issue #27932: Prevent memory leak in win32_ver(). + +- Fix UnboundLocalError in socket._sendfile_use_sendfile. + +- Issue #28075: Check for ERROR_ACCESS_DENIED in Windows implementation of + os.stat(). Patch by Eryk Sun. + +- Issue #22493: Warning message emitted by using inline flags in the middle of + regular expression now contains a (truncated) regex pattern. + Patch by Tim Graham. + +- Issue #25270: Prevent codecs.escape_encode() from raising SystemError when + an empty bytestring is passed. + +- Issue #28181: Get antigravity over HTTPS. Patch by Kaartic Sivaraam. + +- Issue #25895: Enable WebSocket URL schemes in urllib.parse.urljoin. + Patch by Gergely Imreh and Markus Holtermann. + +- Issue #28114: Fix a crash in parse_envlist() when env contains byte strings. + Patch by Eryk Sun. + +- Issue #27599: Fixed buffer overrun in binascii.b2a_qp() and binascii.a2b_qp(). + +- Issue #27906: Fix socket accept exhaustion during high TCP traffic. + Patch by Kevin Conway. + +- Issue #28174: Handle when SO_REUSEPORT isn't properly supported. + Patch by Seth Michael Larson. + +- Issue #26654: Inspect functools.partial in asyncio.Handle.__repr__. + Patch by iceboy. + +- Issue #26909: Fix slow pipes IO in asyncio. + Patch by INADA Naoki. + +- Issue #28176: Fix callbacks race in asyncio.SelectorLoop.sock_connect. + +- Issue #27759: Fix selectors incorrectly retain invalid file descriptors. + Patch by Mark Williams. + +- Issue #28325: Remove vestigial MacOS 9 macurl2path module and its tests. + +- Issue #28368: Refuse monitoring processes if the child watcher has + no loop attached. + Patch by Vincent Michel. + +- Issue #28369: Raise RuntimeError when transport's FD is used with + add_reader, add_writer, etc. + +- Issue #28370: Speedup asyncio.StreamReader.readexactly. + Patch by Коренберг Марк. + +- Issue #28371: Deprecate passing asyncio.Handles to run_in_executor. + +- Issue #28372: Fix asyncio to support formatting of non-python coroutines. + +- Issue #28399: Remove UNIX socket from FS before binding. + Patch by Коренберг Марк. + +- Issue #27972: Prohibit Tasks to await on themselves. + +- Issue #24142: Reading a corrupt config file left configparser in an + invalid state. Original patch by Florian Höch. + Windows ------- - Issue #25778: winreg does not truncate string correctly (Patch by Eryk Sun) -- Issue #28896: Deprecate WindowsRegistryFinder and disable it by default. +- Issue #28896: Deprecate WindowsRegistryFinder and disable it by default + +- Issue #28522: Fixes mishandled buffer reallocation in getpathp.c + +- Issue #28402: Adds signed catalog files for stdlib on Windows. + +- Issue #28333: Enables Unicode for ps1/ps2 and input() prompts. (Patch by + Eryk Sun) + +- Issue #28251: Improvements to help manuals on Windows. + +- Issue #28110: launcher.msi has different product codes between 32-bit and + 64-bit + +- Issue #28161: Opening CON for write access fails + +- Issue #28162: WindowsConsoleIO readall() fails if first line starts with + Ctrl+Z + +- Issue #28163: WindowsConsoleIO fileno() passes wrong flags to + _open_osfhandle + +- Issue #28164: _PyIO_get_console_type fails for various paths + +- Issue #28137: Renames Windows path file to ._pth + +- Issue #28138: Windows ._pth file should allow import site C API ----- -- Issue #27867: Function PySlice_GetIndicesEx() is replaced with a macro if - Py_LIMITED_API is not set or set to the value between 0x03050400 - and 0x03060000 (not including) or 0x03060100 or higher. +- Issue #27867: Function PySlice_GetIndicesEx() is deprecated and replaced with + a macro if Py_LIMITED_API is not set or set to the value between 0x03050400 + and 0x03060000 (not including) or 0x03060100 or higher. Added functions + PySlice_Unpack() and PySlice_AdjustIndices(). - Issue #29083: Fixed the declaration of some public API functions. PyArg_VaParse() and PyArg_VaParseTupleAndKeywords() were not available in @@ -161,38 +653,245 @@ C API Py_BuildValue() were not available in limited API of version < 3.3 when PY_SSIZE_T_CLEAN is defined. +- Issue #28769: The result of PyUnicode_AsUTF8AndSize() and PyUnicode_AsUTF8() + is now of type "const char *" rather of "char *". + - Issue #29058: All stable API extensions added after Python 3.2 are now available only when Py_LIMITED_API is set to the PY_VERSION_HEX value of the minimum Python version supporting this API. +- Issue #28822: The index parameters *start* and *end* of PyUnicode_FindChar() + are now adjusted to behave like ``str[start:end]``. + +- Issue #28808: PyUnicode_CompareWithASCIIString() now never raises exceptions. + +- Issue #28761: The fields name and doc of structures PyMemberDef, PyGetSetDef, + PyStructSequence_Field, PyStructSequence_Desc, and wrapperbase are now of + type ``const char *`` rather of ``char *``. + +- Issue #28748: Private variable _Py_PackageContext is now of type ``const char *`` + rather of ``char *``. + +- Issue #19569: Compiler warnings are now emitted if use most of deprecated + functions. + +- Issue #28426: Deprecated undocumented functions PyUnicode_AsEncodedObject(), + PyUnicode_AsDecodedObject(), PyUnicode_AsDecodedUnicode() and + PyUnicode_AsEncodedUnicode(). + Documentation ------------- - Issue #29349: Fix Python 2 syntax in code for building the documentation. +- Issue #23722: The data model reference and the porting section in the + 3.6 What's New guide now cover the additional ``__classcell__`` handling + needed for custom metaclasses to fully support PEP 487 and zero-argument + ``super()``. + +- Issue #28513: Documented command-line interface of zipfile. + +Build +----- + +- Issue #29384: Remove old Be OS helper scripts. + +- Issue #26851: Set Android compilation and link flags. + +- Issue #28768: Fix implicit declaration of function _setmode. Patch by + Masayuki Yamamoto + +- Issue #29080: Removes hard dependency on hg.exe from PCBuild/build.bat + +- Issue #23903: Added missed names to PC/python3.def. + +- Issue #28762: lockf() is available on Android API level 24, but the F_LOCK + macro is not defined in android-ndk-r13. + +- Issue #28538: Fix the compilation error that occurs because if_nameindex() is + available on Android API level 24, but the if_nameindex structure is not + defined. + +- Issue #20211: Do not add the directory for installing C header files and the + directory for installing object code libraries to the cross compilation + search paths. Original patch by Thomas Petazzoni. + +- Issue #28849: Do not define sys.implementation._multiarch on Android. + +- Issue #10656: Fix out-of-tree building on AIX. Patch by Tristan Carel and + Michael Haubenwallner. + +- Issue #26359: Rename --with-optimiations to --enable-optimizations. + +- Issue #28444: Fix missing extensions modules when cross compiling. + +- Issue #28208: Update Windows build and OS X installers to use SQLite 3.14.2. + +- Issue #28248: Update Windows build and OS X installers to use OpenSSL 1.0.2j. + +- Issue #21124: Fix building the _struct module on Cygwin by passing ``NULL`` + instead of ``&PyType_Type`` to PyVarObject_HEAD_INIT. Patch by Masayuki + Yamamoto. + +- Issue #13756: Fix building extensions modules on Cygwin. Patch by Roumen + Petrov, based on original patch by Jason Tishler. + +- Issue #21085: Add configure check for siginfo_t.si_band, which Cygwin does + not provide. Patch by Masayuki Yamamoto with review and rebase by Erik Bray. + +- Issue #28258: Fixed build with Estonian locale (python-config and distclean + targets in Makefile). Patch by Arfrever Frehtes Taifersar Arahesis. + +- Issue #26661: setup.py now detects system libffi with multiarch wrapper. + +- Issue #27979: A full copy of libffi is no longer bundled for use when + building _ctypes on non-OSX UNIX platforms. An installed copy of libffi is + now required when building _ctypes on such platforms. + +- Issue #15819: Remove redundant include search directory option for building + outside the source tree. + +- Issue #28676: Prevent missing 'getentropy' declaration warning on macOS. + Patch by Gareth Rees. + +Tools/Demos +----------- + +- Issue #29367: python-gdb.py now supports also ``method-wrapper`` + (``wrapperobject``) objects. + +- Issue #28023: Fix python-gdb.py didn't support new dict implementation. + +- Issue #15369: The pybench and pystone microbenchmark have been removed from + Tools. Please use the new Python benchmark suite + https://github.com/python/performance which is more reliable and includes a + portable version of pybench working on Python 2 and Python 3. + +- Issue #28102: The zipfile module CLI now prints usage to stderr. + Patch by Stephen J. Turnbull. + Tests ----- +- Issue #24932: Use proper command line parsing in _testembed + - Issue #28950: Disallow -j0 to be combined with -T/-l in regrtest command line arguments. - Issue #28683: Fix the tests that bind() a unix socket and raise PermissionError on Android for a non-root user. + - Issue #26936: Fix the test_socket failures on Android - getservbyname(), + getservbyport() and getaddrinfo() are broken on some Android API levels. + +- Issue #28666: Now test.support.rmtree is able to remove unwritable or + unreadable directories. + +- Issue #23839: Various caches now are cleared before running every test file. + +- Issue #26944: Fix test_posix for Android where 'id -G' is entirely wrong or + missing the effective gid. + +- Issue #28409: regrtest: fix the parser of command line arguments. + +- Issue #28217: Adds _testconsole module to test console input. + - Issue #26939: Add the support.setswitchinterval() function to fix test_functools hanging on the Android armv7 qemu emulator. -Build + +What's New in Python 3.6.1 release candidate 1? +=============================================== + +*Release date: XXXX-XX-XX* + +Core and Builtins +----------------- + +- Issue #28932: Do not include <sys/random.h> if it does not exist. + +- Issue #25677: Correct the positioning of the syntax error caret for + indented blocks. Based on patch by Michael Layzell. + +- Issue #29000: Fixed bytes formatting of octals with zero padding in alternate + form. + +- Issue #26919: On Android, operating system data is now always encoded/decoded + to/from UTF-8, instead of the locale encoding to avoid inconsistencies with + os.fsencode() and os.fsdecode() which are already using UTF-8. + +- Issue #28991: functools.lru_cache() was susceptible to an obscure reentrancy + bug triggerable by a monkey-patched len() function. + +- Issue #28739: f-string expressions are no longer accepted as docstrings and + by ast.literal_eval() even if they do not include expressions. + +- Issue #28512: Fixed setting the offset attribute of SyntaxError by + PyErr_SyntaxLocationEx() and PyErr_SyntaxLocationObject(). + +- Issue #28918: Fix the cross compilation of xxlimited when Python has been + built with Py_DEBUG defined. + +- Issue #28731: Optimize _PyDict_NewPresized() to create correct size dict. + Improve speed of dict literal with constant keys up to 30%. + +Library +------- + +- Issue #29085: Allow random.Random.seed() to use high quality OS randomness + rather than the pid and time. + +- Issue 28923: Remove editor artifacts from Tix.py. + +- Issue #29055: Neaten-up empty population error on random.choice() + by suppressing the upstream exception. + +- Issue #28871: Fixed a crash when deallocate deep ElementTree. + +- Issue #19542: Fix bugs in WeakValueDictionary.setdefault() and + WeakValueDictionary.pop() when a GC collection happens in another + thread. + +- Issue #20191: Fixed a crash in resource.prlimit() when passing a sequence that + doesn't own its elements as limits. + +- Issue #28779: multiprocessing.set_forkserver_preload() would crash the + forkserver process if a preloaded module instantiated some + multiprocessing objects such as locks. + +- Issue #28847: dbm.dumb now supports reading read-only files and no longer + writes the index file when it is not changed. + +- Issue #26937: The chown() method of the tarfile.TarFile class does not fail + now when the grp module cannot be imported, as for example on Android + platforms. + +Windows +------- + +- Issue #25778: winreg does not truncate string correctly (Patch by Eryk Sun) + +- Issue #28896: Deprecate WindowsRegistryFinder and disable it by default. + +Documentation +------------- + +- Issue #29349: Fix Python 2 syntax in code for building the documentation. + +Tests ----- -- Issue #26851: Set Android compilation and link flags. +- Issue #28950: Disallow -j0 to be combined with -T/-l in regrtest + command line arguments. -- Issue #28768: Fix implicit declaration of function _setmode. Patch by - Masayuki Yamamoto +- Issue #28683: Fix the tests that bind() a unix socket and raise + PermissionError on Android for a non-root user. -- Issue #29080: Removes hard dependency on hg.exe from PCBuild/build.bat +- Issue #26939: Add the support.setswitchinterval() function to fix + test_functools hanging on the Android armv7 qemu emulator. -- Issue #23903: Added missed names to PC/python3.def. +Build +----- - Issue #28762: lockf() is available on Android API level 24, but the F_LOCK macro is not defined in android-ndk-r13. |