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Diffstat (limited to 'Misc/NEWS')
| -rw-r--r-- | Misc/NEWS | 1474 |
1 files changed, 1464 insertions, 10 deletions
@@ -4003,6 +4003,1456 @@ C API instead of TypeError on programmical error in parsing format string. +What's New in Python 3.5.3? +=========================== + +Release date: 2017-01-17 + +There were no code changes between 3.5.3rc1 and 3.5.3 final. + + +What's New in Python 3.5.3 release candidate 1? +=============================================== + +Release date: 2017-01-02 + +Core and Builtins +----------------- + +- Issue #29073: bytearray formatting no longer truncates on first null byte. + +- Issue #28932: Do not include <sys/random.h> if it does not exist. + +- Issue #28147: Fix a memory leak in split-table dictionaries: setattr() + must not convert combined table into split table. + +- 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 #28512: Fixed setting the offset attribute of SyntaxError by + PyErr_SyntaxLocationEx() and PyErr_SyntaxLocationObject(). + +- Issue #28991: functools.lru_cache() was susceptible to an obscure reentrancy + bug caused by a monkey-patched len() function. + +- Issue #28648: Fixed crash in Py_DecodeLocale() in debug build on Mac OS X + when decode astral characters. Patch by Xiang Zhang. + +- Issue #19398: Extra slash no longer added to sys.path components in case of + empty compile-time PYTHONPATH components. + +- Issue #28426: Fixed potential crash in PyUnicode_AsDecodedObject() in debug + build. + +- Issue #23782: Fixed possible memory leak in _PyTraceback_Add() and exception + loss in PyTraceBack_Here(). + +- 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: The constructor of range_iterator now checks that step is not 0. + 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 #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 #21578: Fixed misleading error message when ImportError called with + invalid keyword args. + +- Issue #28203: Fix incorrect type in error message from + ``complex(1.0, {2:3})``. Patch by Soumya Sharma. + +- Issue #27955: Fallback on reading /dev/urandom device when the getrandom() + syscall fails with EPERM, for example when blocked by SECCOMP. + +- Issue #28131: Fix a regression in zipimport's compile_source(). zipimport + should use the same optimization level as the interpreter. + +- Issue #25221: Fix corrupted result from PyLong_FromLong(0) when + Python is compiled with NSMALLPOSINTS = 0. + +- Issue #25758: Prevents zipimport from unnecessarily encoding a filename + (patch by Eryk Sun) + +- Issue #28189: dictitems_contains no longer swallows compare errors. + (Patch by Xiang Zhang) + +- Issue #27812: Properly clear out a generator's frame's backreference to the + generator to prevent crashes in frame.clear(). + +- Issue #27811: Fix a crash when a coroutine that has not been awaited is + finalized with warnings-as-errors enabled. + +- Issue #27587: Fix another issue found by PVS-Studio: Null pointer check + after use of 'def' in _PyState_AddModule(). + Initial patch by Christian Heimes. + +- Issue #26020: set literal evaluation order did not match documented behaviour. + +- Issue #27782: Multi-phase extension module import now correctly allows the + ``m_methods`` field to be used to add module level functions to instances + of non-module types returned from ``Py_create_mod``. Patch by Xiang Zhang. + +- Issue #27936: The round() function accepted a second None argument + for some types but not for others. Fixed the inconsistency by + accepting None for all numeric types. + +- Issue #27487: Warn if a submodule argument to "python -m" or + runpy.run_module() is found in sys.modules after parent packages are + imported, but before the submodule is executed. + +- Issue #27558: Fix a SystemError in the implementation of "raise" statement. + In a brand new thread, raise a RuntimeError since there is no active + exception to reraise. Patch written by Xiang Zhang. + +- Issue #27419: Standard __import__() no longer look up "__import__" in globals + or builtins for importing submodules or "from import". Fixed handling an + error of non-string package name. + +- Issue #27083: Respect the PYTHONCASEOK environment variable under Windows. + +- Issue #27514: Make having too many statically nested blocks a SyntaxError + instead of SystemError. + +- Issue #27473: Fixed possible integer overflow in bytes and bytearray + concatenations. Patch by Xiang Zhang. + +- Issue #27507: Add integer overflow check in bytearray.extend(). Patch by + Xiang Zhang. + +- Issue #27581: Don't rely on wrapping for overflow check in + PySequence_Tuple(). Patch by Xiang Zhang. + +- Issue #27443: __length_hint__() of bytearray iterators no longer return a + negative integer for a resized bytearray. + +- Issue #27942: Fix memory leak in codeobject.c + +Library +------- + +- Issue #15812: inspect.getframeinfo() now correctly shows the first line of + a context. Patch by Sam Breese. + +- 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 #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. + +- Issue #28427: old keys should not remove new values from + WeakValueDictionary when collecting from another thread. + +- Issue 28923: Remove editor artifacts from Tix.py. + +- 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 pass 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 #25659: In ctypes, prevent a crash calling the from_buffer() and + from_buffer_copy() methods on abstract classes like Array. + +- Issue #28732: Fix crash in os.spawnv() with no elements in args + +- Issue #28485: Always raise ValueError for negative + compileall.compile_dir(workers=...) parameter, even when multithreading is + unavailable. + +- 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().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 #25464: Fixed HList.header_exists() in tkinter.tix module by addin + a workaround to Tix library bug. + +- Issue #28488: shutil.make_archive() no longer add entry "./" to ZIP archive. + +- Issue #24452: Make webbrowser support Chrome on Mac OS X. + +- Issue #20766: Fix references leaked by pdb in the handling of SIGINT + handlers. + +- 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 #28321: Fixed writing non-BMP characters with binary format in plistlib. + +- Issue #28322: Fixed possible crashes when unpickle itertools objects from + incorrect pickle data. Based on patch by John Leitch. + +- Fix possible integer overflows and crashes in the mmap module with unusual + usage patterns. + +- Issue #1703178: Fix the ability to pass the --link-objects option to the + distutils build_ext command. + +- 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 #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. + +- 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 #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 #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 #27599: Fixed buffer overrun in binascii.b2a_qp() and binascii.a2b_qp(). + +- Issue #19003:m email.generator now replaces only \r and/or \n line + endings, per the RFC, instead of all unicode line endings. + +- Issue #28019: itertools.count() no longer rounds non-integer step in range + between 1.0 and 2.0 to 1. + +- Issue #25969: Update the lib2to3 grammar to handle the unpacking + generalizations added in 3.5. + +- Issue #14977: mailcap now respects the order of the lines in the mailcap + files ("first match"), as required by RFC 1542. Patch by Michael Lazar. + +- Issue #24594: Validates persist parameter when opening MSI database + +- Issue #17582: xml.etree.ElementTree nows preserves whitespaces in attributes + (Patch by Duane Griffin. Reviewed and approved by Stefan Behnel.) + +- Issue #28047: Fixed calculation of line length used for the base64 CTE + in the new email policies. + +- Issue #27445: Don't pass str(_charset) to MIMEText.set_payload(). + Patch by Claude Paroz. + +- Issue #22450: urllib now includes an "Accept: */*" header among the + default headers. This makes the results of REST API requests more + consistent and predictable especially when proxy servers are involved. + +- lib2to3.pgen3.driver.load_grammar() now creates a stable cache file + between runs given the same Grammar.txt input regardless of the hash + randomization setting. + +- Issue #27570: Avoid zero-length memcpy() etc calls with null source + pointers in the "ctypes" and "array" modules. + +- Issue #22233: Break email header lines *only* on the RFC specified CR and LF + characters, not on arbitrary unicode line breaks. This also fixes a bug in + HTTP header parsing. + +- Issue 27988: Fix email iter_attachments incorrect mutation of payload list. + +- Issue #27691: Fix ssl module's parsing of GEN_RID subject alternative name + fields in X.509 certs. + +- Issue #27850: Remove 3DES from ssl module's default cipher list to counter + measure sweet32 attack (CVE-2016-2183). + +- Issue #27766: Add ChaCha20 Poly1305 to ssl module's default ciper list. + (Required OpenSSL 1.1.0 or LibreSSL). + +- Issue #26470: Port ssl and hashlib module to OpenSSL 1.1.0. + +- Remove support for passing a file descriptor to os.access. It never worked but + previously didn't raise. + +- Issue #12885: Fix error when distutils encounters symlink. + +- Issue #27881: Fixed possible bugs when setting sqlite3.Connection.isolation_level. + Based on patch by Xiang Zhang. + +- Issue #27861: Fixed a crash in sqlite3.Connection.cursor() when a factory + creates not a cursor. Patch by Xiang Zhang. + +- Issue #19884: Avoid spurious output on OS X with Gnu Readline. + +- Issue #27706: Restore deterministic behavior of random.Random().seed() + for string seeds using seeding version 1. Allows sequences of calls + to random() to exactly match those obtained in Python 2. + Patch by Nofar Schnider. + +- Issue #10513: Fix a regression in Connection.commit(). Statements should + not be reset after a commit. + +- A new version of typing.py from https://github.com/python/typing: + - Collection (only for 3.6) (Issue #27598) + - Add FrozenSet to __all__ (upstream #261) + - fix crash in _get_type_vars() (upstream #259) + - Remove the dict constraint in ForwardRef._eval_type (upstream #252) + +- Issue #27539: Fix unnormalised ``Fraction.__pow__`` result in the case + of negative exponent and negative base. + +- Issue #21718: cursor.description is now available for queries using CTEs. + +- Issue #2466: posixpath.ismount now correctly recognizes mount points which + the user does not have permission to access. + +- Issue #27773: Correct some memory management errors server_hostname in + _ssl.wrap_socket(). + +- Issue #26750: unittest.mock.create_autospec() now works properly for + subclasses of property() and other data descriptors. + +- In the curses module, raise an error if window.getstr() or window.instr() is + passed a negative value. + +- Issue #27783: Fix possible usage of uninitialized memory in + operator.methodcaller. + +- Issue #27774: Fix possible Py_DECREF on unowned object in _sre. + +- Issue #27760: Fix possible integer overflow in binascii.b2a_qp. + +- Issue #27758: Fix possible integer overflow in the _csv module for large + record lengths. + +- Issue #27568: Prevent HTTPoxy attack (CVE-2016-1000110). Ignore the + HTTP_PROXY variable when REQUEST_METHOD environment is set, which indicates + that the script is in CGI mode. + +- Issue #27656: Do not assume sched.h defines any SCHED_* constants. + +- Issue #27130: In the "zlib" module, fix handling of large buffers + (typically 4 GiB) when compressing and decompressing. Previously, inputs + were limited to 4 GiB, and compression and decompression operations did not + properly handle results of 4 GiB. + +- Issue #27533: Release GIL in nt._isdir + +- Issue #17711: Fixed unpickling by the persistent ID with protocol 0. + Original patch by Alexandre Vassalotti. + +- Issue #27522: Avoid an unintentional reference cycle in email.feedparser. + +- Issue #26844: Fix error message for imp.find_module() to refer to 'path' + instead of 'name'. Patch by Lev Maximov. + +- Issue #23804: Fix SSL zero-length recv() calls to not block and not raise + an error about unclean EOF. + +- Issue #27466: Change time format returned by http.cookie.time2netscape, + confirming the netscape cookie format and making it consistent with + documentation. + +- Issue #26664: Fix activate.fish by removing mis-use of ``$``. + +- Issue #22115: Fixed tracing Tkinter variables: trace_vdelete() with wrong + mode no longer break tracing, trace_vinfo() now always returns a list of + pairs of strings, tracing in the "u" mode now works. + +- Fix a scoping issue in importlib.util.LazyLoader which triggered an + UnboundLocalError when lazy-loading a module that was already put into + sys.modules. + +- Issue #27079: Fixed curses.ascii functions isblank(), iscntrl() and ispunct(). + +- Issue #26754: Some functions (compile() etc) accepted a filename argument + encoded as an iterable of integers. Now only strings and byte-like objects + are accepted. + +- Issue #27048: Prevents distutils failing on Windows when environment + variables contain non-ASCII characters + +- Issue #27330: Fixed possible leaks in the ctypes module. + +- Issue #27238: Got rid of bare excepts in the turtle module. Original patch + by Jelle Zijlstra. + +- Issue #27122: When an exception is raised within the context being managed + by a contextlib.ExitStack() and one of the exit stack generators + catches and raises it in a chain, do not re-raise the original exception + when exiting, let the new chained one through. This avoids the PEP 479 + bug described in issue25782. + +- [Security] Issue #27278: Fix os.urandom() implementation using getrandom() on + Linux. Truncate size to INT_MAX and loop until we collected enough random + bytes, instead of casting a directly Py_ssize_t to int. + +- Issue #26386: Fixed ttk.TreeView selection operations with item id's + containing spaces. + +- [Security] Issue #22636: Avoid shell injection problems with + ctypes.util.find_library(). + +- Issue #16182: Fix various functions in the "readline" module to use the + locale encoding, and fix get_begidx() and get_endidx() to return code point + indexes. + +- Issue #27392: Add loop.connect_accepted_socket(). + Patch by Jim Fulton. + +- Issue #27930: Improved behaviour of logging.handlers.QueueListener. + Thanks to Paulo Andrade and Petr Viktorin for the analysis and patch. + +- Issue #21201: Improves readability of multiprocessing error message. Thanks + to Wojciech Walczak for patch. + +- Issue #27456: asyncio: Set TCP_NODELAY by default. + +- 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 #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 #26923: Fix asyncio.Gather to refuse being cancelled once all + children are done. + Patch by Johannes Ebke. + +- Issue #26796: Don't configure the number of workers for default + threadpool executor. + Initial patch by Hans Lawrenz. + +- Issue #28600: Optimize loop.call_soon(). + +- Issue #28613: Fix get_event_loop() return the current loop if + called from coroutines/callbacks. + +- Issue #28639: Fix inspect.isawaitable to always return bool + Patch by Justin Mayfield. + +- Issue #28652: Make loop methods reject socket kinds they do not support. + +- Issue #28653: Fix a refleak in functools.lru_cache. + +- Issue #28703: Fix asyncio.iscoroutinefunction to handle Mock objects. + +- Issue #24142: Reading a corrupt config file left the parser in an + invalid state. Original patch by Florian Höch. + +- Issue #28990: Fix SSL hanging if connection is closed before handshake + completed. + (Patch by HoHo-Ho) + +IDLE +---- + +- Issue #15308: Add 'interrupt execution' (^C) to Shell menu. + Patch by Roger Serwy, updated by Bayard Randel. + +- Issue #27922: Stop IDLE tests from 'flashing' gui widgets on the screen. + +- Add version to title of IDLE help window. + +- Issue #25564: In section on IDLE -- console differences, mention that + using exec means that __builtins__ is defined for each statement. + +- Issue #27714: text_textview and test_autocomplete now pass when re-run + in the same process. This occurs when test_idle fails when run with the + -w option but without -jn. Fix warning from test_config. + +- Issue #25507: IDLE no longer runs buggy code because of its tkinter imports. + Users must include the same imports required to run directly in Python. + +- Issue #27452: add line counter and crc to IDLE configHandler test dump. + +- Issue #27365: Allow non-ascii chars in IDLE NEWS.txt, for contributor names. + +- Issue #27245: IDLE: Cleanly delete custom themes and key bindings. + Previously, when IDLE was started from a console or by import, a cascade + of warnings was emitted. Patch by Serhiy Storchaka. + +C API +----- + +- Issue #28808: PyUnicode_CompareWithASCIIString() now never raises exceptions. + +- Issue #26754: PyUnicode_FSDecoder() accepted a filename argument encoded as + an iterable of integers. Now only strings and bytes-like objects are accepted. + +Documentation +------------- + +- Issue #28513: Documented command-line interface of zipfile. + +Tests +----- + +- Issue #28950: Disallow -j0 to be combined with -T/-l/-M in regrtest + command line arguments. + +- 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 #28409: regrtest: fix the parser of command line arguments. + +- Issue #27787: Call gc.collect() before checking each test for "dangling + threads", since the dangling threads are weak references. + +- Issue #27369: In test_pyexpat, avoid testing an error message detail that + changed in Expat 2.2.0. + +Tools/Demos +----------- + +- Issue #27952: Get Tools/scripts/fixcid.py working with Python 3 and the + current "re" module, avoid invalid Python backslash escapes, and fix a bug + parsing escaped C quote signs. + +- Issue #27332: Fixed the type of the first argument of module-level functions + generated by Argument Clinic. Patch by Petr Viktorin. + +- Issue #27418: Fixed Tools/importbench/importbench.py. + +Windows +------- + +- Issue #28251: Improvements to help manuals on Windows. + +- Issue #28110: launcher.msi has different product codes between 32-bit and + 64-bit + +- Issue #25144: Ensures TargetDir is set before continuing with custom + install. + +- Issue #27469: Adds a shell extension to the launcher so that drag and drop + works correctly. + +- Issue #27309: Enabled proper Windows styles in python[w].exe manifest. + +Build +----- + +- Issue #29080: Removes hard dependency on hg.exe from PCBuild/build.bat + +- Issue #23903: Added missed names to PC/python3.def. + +- 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 #28248: Update Windows build and OS X installers to use OpenSSL 1.0.2j. + +- 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 #28066: Fix the logic that searches build directories for generated + include files when building outside the source tree. + +- Issue #15819: Remove redundant include search directory option for building + outside the source tree. + +- Issue #27566: Fix clean target in freeze makefile (patch by Lisa Roach) + +- Issue #27705: Update message in validate_ucrtbase.py + +- Issue #27983: Cause lack of llvm-profdata tool when using clang as + required for PGO linking to be a configure time error rather than + make time when --with-optimizations is enabled. Also improve our + ability to find the llvm-profdata tool on MacOS and some Linuxes. + +- Issue #26307: The profile-opt build now applies PGO to the built-in modules. + +- Issue #26359: Add the --with-optimizations configure flag. + +- Issue #27713: Suppress spurious build warnings when updating importlib's + bootstrap files. Patch by Xiang Zhang + +- Issue #25825: Correct the references to Modules/python.exp and ld_so_aix, + which are required on AIX. This updates references to an installation path + that was changed in 3.2a4, and undoes changed references to the build tree + that were made in 3.5.0a1. + +- Issue #27453: CPP invocation in configure must use CPPFLAGS. Patch by + Chi Hsuan Yen. + +- Issue #27641: The configure script now inserts comments into the makefile + to prevent the pgen and _freeze_importlib executables from being cross- + compiled. + +- Issue #26662: Set PYTHON_FOR_GEN in configure as the Python program to be + used for file generation during the build. + +- Issue #10910: Avoid C++ compilation errors on FreeBSD and OS X. + Also update FreedBSD version checks for the original ctype UTF-8 workaround. + +- Issue #28676: Prevent missing 'getentropy' declaration warning on macOS. + Patch by Gareth Rees. + + +What's New in Python 3.5.2? +=========================== + +Release date: 2016-06-26 + +Core and Builtins +----------------- + +- Issue #26930: Update Windows builds to use OpenSSL 1.0.2h. + +Tests +----- + +- Issue #26867: Ubuntu's openssl OP_NO_SSLv3 is forced on by default; fix test. + +IDLE +---- + +- Issue #27365: Allow non-ascii in idlelib/NEWS.txt - minimal part for 3.5.2. + + +What's New in Python 3.5.2 release candidate 1? +=============================================== + +Release date: 2016-06-12 + +Core and Builtins +----------------- + +- Issue #27066: Fixed SystemError if a custom opener (for open()) returns a + negative number without setting an exception. + +- Issue #20041: Fixed TypeError when frame.f_trace is set to None. + Patch by Xavier de Gaye. + +- Issue #26168: Fixed possible refleaks in failing Py_BuildValue() with the "N" + format unit. + +- Issue #26991: Fix possible refleak when creating a function with annotations. + +- Issue #27039: Fixed bytearray.remove() for values greater than 127. Patch by + Joe Jevnik. + +- Issue #23640: int.from_bytes() no longer bypasses constructors for subclasses. + +- Issue #26811: gc.get_objects() no longer contains a broken tuple with NULL + pointer. + +- Issue #20120: Use RawConfigParser for .pypirc parsing, + removing support for interpolation unintentionally added + with move to Python 3. Behavior no longer does any + interpolation in .pypirc files, matching behavior in Python + 2.7 and Setuptools 19.0. + +- Issue #26659: Make the builtin slice type support cycle collection. + +- Issue #26718: super.__init__ no longer leaks memory if called multiple times. + NOTE: A direct call of super.__init__ is not endorsed! + +- Issue #25339: PYTHONIOENCODING now has priority over locale in setting the + error handler for stdin and stdout. + +- Issue #26494: Fixed crash on iterating exhausting iterators. + Affected classes are generic sequence iterators, iterators of str, bytes, + bytearray, list, tuple, set, frozenset, dict, OrderedDict, corresponding + views and os.scandir() iterator. + +- Issue #26581: If coding cookie is specified multiple times on a line in + Python source code file, only the first one is taken to account. + +- Issue #26464: Fix str.translate() when string is ASCII and first replacements + removes character, but next replacement uses a non-ASCII character or a + string longer than 1 character. Regression introduced in Python 3.5.0. + +- Issue #22836: Ensure exception reports from PyErr_Display() and + PyErr_WriteUnraisable() are sensible even when formatting them produces + secondary errors. This affects the reports produced by + sys.__excepthook__() and when __del__() raises an exception. + +- Issue #26302: Correct behavior to reject comma as a legal character for + cookie names. + +- Issue #4806: Avoid masking the original TypeError exception when using star + (*) unpacking in function calls. Based on patch by Hagen Fürstenau and + Daniel Urban. + +- Issue #27138: Fix the doc comment for FileFinder.find_spec(). + +- Issue #26154: Add a new private _PyThreadState_UncheckedGet() function to get + the current Python thread state, but don't issue a fatal error if it is NULL. + This new function must be used instead of accessing directly the + _PyThreadState_Current variable. The variable is no more exposed since + Python 3.5.1 to hide the exact implementation of atomic C types, to avoid + compiler issues. + +- Issue #26194: Deque.insert() gave odd results for bounded deques that had + reached their maximum size. Now an IndexError will be raised when attempting + to insert into a full deque. + +- Issue #25843: When compiling code, don't merge constants if they are equal + but have a different types. For example, ``f1, f2 = lambda: 1, lambda: 1.0`` + is now correctly compiled to two different functions: ``f1()`` returns ``1`` + (``int``) and ``f2()`` returns ``1.0`` (``int``), even if ``1`` and ``1.0`` + are equal. + +- Issue #22995: [UPDATE] Comment out the one of the pickleability tests in + _PyObject_GetState() due to regressions observed in Cython-based projects. + +- Issue #25961: Disallowed null characters in the type name. + +- Issue #25973: Fix segfault when an invalid nonlocal statement binds a name + starting with two underscores. + +- Issue #22995: Instances of extension types with a state that aren't + subclasses of list or dict and haven't implemented any pickle-related + methods (__reduce__, __reduce_ex__, __getnewargs__, __getnewargs_ex__, + or __getstate__), can no longer be pickled. Including memoryview. + +- Issue #20440: Massive replacing unsafe attribute setting code with special + macro Py_SETREF. + +- Issue #25766: Special method __bytes__() now works in str subclasses. + +- Issue #25421: __sizeof__ methods of builtin types now use dynamic basic size. + This allows sys.getsize() to work correctly with their subclasses with + __slots__ defined. + +- Issue #25709: Fixed problem with in-place string concatenation and utf-8 + cache. + +- Issue #27147: Mention PEP 420 in the importlib docs. + +- Issue #24097: Fixed crash in object.__reduce__() if slot name is freed inside + __getattr__. + +- Issue #24731: Fixed crash on converting objects with special methods + __bytes__, __trunc__, and __float__ returning instances of subclasses of + bytes, int, and float to subclasses of bytes, int, and float correspondingly. + +- Issue #26478: Fix semantic bugs when using binary operators with dictionary + views and tuples. + +- Issue #26171: Fix possible integer overflow and heap corruption in + zipimporter.get_data(). + +- Issue #25660: Fix TAB key behaviour in REPL with readline. + +- Issue #25887: Raise a RuntimeError when a coroutine object is awaited + more than once. + +- Issue #27243: Update the __aiter__ protocol: instead of returning + an awaitable that resolves to an asynchronous iterator, the asynchronous + iterator should be returned directly. Doing the former will trigger a + PendingDeprecationWarning. + + +Library +------- + +- [Security] Issue #26556: Update expat to 2.1.1, fixes CVE-2015-1283. + +- [Security] Fix TLS stripping vulnerability in smtplib, CVE-2016-0772. + Reported by Team Oststrom + +- Issue #21386: Implement missing IPv4Address.is_global property. It was + documented since 07a5610bae9d. Initial patch by Roger Luethi. + +- Issue #20900: distutils register command now decodes HTTP responses + correctly. Initial patch by ingrid. + +- A new version of typing.py provides several new classes and + features: @overload outside stubs, Reversible, DefaultDict, Text, + ContextManager, Type[], NewType(), TYPE_CHECKING, and numerous bug + fixes (note that some of the new features are not yet implemented in + mypy or other static analyzers). Also classes for PEP 492 + (Awaitable, AsyncIterable, AsyncIterator) have been added (in fact + they made it into 3.5.1 but were never mentioned). + +- Issue #25738: Stop http.server.BaseHTTPRequestHandler.send_error() from + sending a message body for 205 Reset Content. Also, don't send Content + header fields in responses that don't have a body. Patch by Susumu + Koshiba. + +- Issue #21313: Fix the "platform" module to tolerate when sys.version + contains truncated build information. + +- [Security] Issue #26839: On Linux, :func:`os.urandom` now calls + ``getrandom()`` with ``GRND_NONBLOCK`` to fall back on reading + ``/dev/urandom`` if the urandom entropy pool is not initialized yet. Patch + written by Colm Buckley. + +- Issue #27164: In the zlib module, allow decompressing raw Deflate streams + with a predefined zdict. Based on patch by Xiang Zhang. + +- Issue #24291: Fix wsgiref.simple_server.WSGIRequestHandler to completely + write data to the client. Previously it could do partial writes and + truncate data. Also, wsgiref.handler.ServerHandler can now handle stdout + doing partial writes, but this is deprecated. + +- Issue #26809: Add ``__all__`` to :mod:`string`. Patch by Emanuel Barry. + +- Issue #26373: subprocess.Popen.communicate now correctly ignores + BrokenPipeError when the child process dies before .communicate() + is called in more/all circumstances. + +- Issue #21776: distutils.upload now correctly handles HTTPError. + Initial patch by Claudiu Popa. + +- Issue #27114: Fix SSLContext._load_windows_store_certs fails with + PermissionError + +- Issue #18383: Avoid creating duplicate filters when using filterwarnings + and simplefilter. Based on patch by Alex Shkop. + +- Issue #27057: Fix os.set_inheritable() on Android, ioctl() is blocked by + SELinux and fails with EACCESS. The function now falls back to fcntl(). + Patch written by Michał Bednarski. + +- Issue #27014: Fix infinite recursion using typing.py. Thanks to Kalle Tuure! + +- Issue #14132: Fix urllib.request redirect handling when the target only has + a query string. Original fix by Ján Janech. + +- Issue #17214: The "urllib.request" module now percent-encodes non-ASCII + bytes found in redirect target URLs. Some servers send Location header + fields with non-ASCII bytes, but "http.client" requires the request target + to be ASCII-encodable, otherwise a UnicodeEncodeError is raised. Based on + patch by Christian Heimes. + +- Issue #26892: Honor debuglevel flag in urllib.request.HTTPHandler. Patch + contributed by Chi Hsuan Yen. + +- Issue #22274: In the subprocess module, allow stderr to be redirected to + stdout even when stdout is not redirected. Patch by Akira Li. + +- Issue #26807: mock_open 'files' no longer error on readline at end of file. + Patch from Yolanda Robla. + +- Issue #25745: Fixed leaking a userptr in curses panel destructor. + +- Issue #26977: Removed unnecessary, and ignored, call to sum of squares helper + in statistics.pvariance. + +- Issue #26881: The modulefinder module now supports extended opcode arguments. + +- Issue #23815: Fixed crashes related to directly created instances of types in + _tkinter and curses.panel modules. + +- Issue #17765: weakref.ref() no longer silently ignores keyword arguments. + Patch by Georg Brandl. + +- Issue #26873: xmlrpc now raises ResponseError on unsupported type tags + instead of silently return incorrect result. + +- Issue #26711: Fixed the comparison of plistlib.Data with other types. + +- Issue #24114: Fix an uninitialized variable in `ctypes.util`. + + The bug only occurs on SunOS when the ctypes implementation searches + for the `crle` program. Patch by Xiang Zhang. Tested on SunOS by + Kees Bos. + +- Issue #26864: In urllib.request, change the proxy bypass host checking + against no_proxy to be case-insensitive, and to not match unrelated host + names that happen to have a bypassed hostname as a suffix. Patch by Xiang + Zhang. + +- Issue #26634: recursive_repr() now sets __qualname__ of wrapper. Patch by + Xiang Zhang. + +- Issue #26804: urllib.request will prefer lower_case proxy environment + variables over UPPER_CASE or Mixed_Case ones. Patch contributed by Hans-Peter + Jansen. + +- Issue #26837: assertSequenceEqual() now correctly outputs non-stringified + differing items (like bytes in the -b mode). This affects assertListEqual() + and assertTupleEqual(). + +- Issue #26041: Remove "will be removed in Python 3.7" from deprecation + messages of platform.dist() and platform.linux_distribution(). + Patch by Kumaripaba Miyurusara Athukorala. + +- Issue #26822: itemgetter, attrgetter and methodcaller objects no longer + silently ignore keyword arguments. + +- Issue #26733: Disassembling a class now disassembles class and static methods. + Patch by Xiang Zhang. + +- Issue #26801: Fix error handling in :func:`shutil.get_terminal_size`, catch + :exc:`AttributeError` instead of :exc:`NameError`. Patch written by Emanuel + Barry. + +- Issue #24838: tarfile's ustar and gnu formats now correctly calculate name + and link field limits for multibyte character encodings like utf-8. + +- [Security] Issue #26657: Fix directory traversal vulnerability with + http.server on Windows. This fixes a regression that was introduced in + 3.3.4rc1 and 3.4.0rc1. Based on patch by Philipp Hagemeister. + +- Issue #26717: Stop encoding Latin-1-ized WSGI paths with UTF-8. Patch by + Anthony Sottile. + +- Issue #26735: Fix :func:`os.urandom` on Solaris 11.3 and newer when reading + more than 1,024 bytes: call ``getrandom()`` multiple times with a limit of + 1024 bytes per call. + +- Issue #16329: Add .webm to mimetypes.types_map. Patch by Giampaolo Rodola'. + +- Issue #13952: Add .csv to mimetypes.types_map. Patch by Geoff Wilson. + +- Issue #26709: Fixed Y2038 problem in loading binary PLists. + +- Issue #23735: Handle terminal resizing with Readline 6.3+ by installing our + own SIGWINCH handler. Patch by Eric Price. + +- Issue #26586: In http.server, respond with "413 Request header fields too + large" if there are too many header fields to parse, rather than killing + the connection and raising an unhandled exception. Patch by Xiang Zhang. + +- Issue #22854: Change BufferedReader.writable() and + BufferedWriter.readable() to always return False. + +- Issue #25195: Fix a regression in mock.MagicMock. _Call is a subclass of + tuple (changeset 3603bae63c13 only works for classes) so we need to + implement __ne__ ourselves. Patch by Andrew Plummer. + +- Issue #26644: Raise ValueError rather than SystemError when a negative + length is passed to SSLSocket.recv() or read(). + +- Issue #23804: Fix SSL recv(0) and read(0) methods to return zero bytes + instead of up to 1024. + +- Issue #26616: Fixed a bug in datetime.astimezone() method. + +- Issue #21925: :func:`warnings.formatwarning` now catches exceptions on + ``linecache.getline(...)`` to be able to log :exc:`ResourceWarning` emitted + late during the Python shutdown process. + +- Issue #24266: Ctrl+C during Readline history search now cancels the search + mode when compiled with Readline 7. + +- Issue #26560: Avoid potential ValueError in BaseHandler.start_response. + Initial patch by Peter Inglesby. + +- [Security] Issue #26313: ssl.py _load_windows_store_certs fails if windows + cert store is empty. Patch by Baji. + +- Issue #26569: Fix :func:`pyclbr.readmodule` and :func:`pyclbr.readmodule_ex` + to support importing packages. + +- Issue #26499: Account for remaining Content-Length in + HTTPResponse.readline() and read1(). Based on patch by Silent Ghost. + Also document that HTTPResponse now supports these methods. + +- Issue #25320: Handle sockets in directories unittest discovery is scanning. + Patch from Victor van den Elzen. + +- Issue #16181: cookiejar.http2time() now returns None if year is higher than + datetime.MAXYEAR. + +- Issue #26513: Fixes platform module detection of Windows Server + +- Issue #23718: Fixed parsing time in week 0 before Jan 1. Original patch by + Tamás Bence Gedai. + +- Issue #20589: Invoking Path.owner() and Path.group() on Windows now raise + NotImplementedError instead of ImportError. + +- Issue #26177: Fixed the keys() method for Canvas and Scrollbar widgets. + +- Issue #15068: Got rid of excessive buffering in the fileinput module. + The bufsize parameter is no longer used. + +- Issue #2202: Fix UnboundLocalError in + AbstractDigestAuthHandler.get_algorithm_impls. Initial patch by Mathieu + Dupuy. + +- Issue #25718: Fixed pickling and copying the accumulate() iterator with + total is None. + +- Issue #26475: Fixed debugging output for regular expressions with the (?x) + flag. + +- Issue #26457: Fixed the subnets() methods in IP network classes for the case + when resulting prefix length is equal to maximal prefix length. + Based on patch by Xiang Zhang. + +- Issue #26385: Remove the file if the internal open() call in + NamedTemporaryFile() fails. Patch by Silent Ghost. + +- Issue #26402: Fix XML-RPC client to retry when the server shuts down a + persistent connection. This was a regression related to the new + http.client.RemoteDisconnected exception in 3.5.0a4. + +- Issue #25913: Leading ``<~`` is optional now in base64.a85decode() with + adobe=True. Patch by Swati Jaiswal. + +- Issue #26186: Remove an invalid type check in importlib.util.LazyLoader. + +- Issue #26367: importlib.__import__() raises SystemError like + builtins.__import__() when ``level`` is specified but without an accompanying + package specified. + +- Issue #26309: In the "socketserver" module, shut down the request (closing + the connected socket) when verify_request() returns false. Patch by Aviv + Palivoda. + +- [Security] Issue #25939: On Windows open the cert store readonly in + ssl.enum_certificates. + +- Issue #25995: os.walk() no longer uses FDs proportional to the tree depth. + +- Issue #26117: The os.scandir() iterator now closes file descriptor not only + when the iteration is finished, but when it was failed with error. + +- Issue #25911: Restored support of bytes paths in os.walk() on Windows. + +- Issue #26045: Add UTF-8 suggestion to error message when posting a + non-Latin-1 string with http.client. + +- Issue #12923: Reset FancyURLopener's redirect counter even if there is an + exception. Based on patches by Brian Brazil and Daniel Rocco. + +- Issue #25945: Fixed a crash when unpickle the functools.partial object with + wrong state. Fixed a leak in failed functools.partial constructor. + "args" and "keywords" attributes of functools.partial have now always types + tuple and dict correspondingly. + +- Issue #26202: copy.deepcopy() now correctly copies range() objects with + non-atomic attributes. + +- Issue #23076: Path.glob() now raises a ValueError if it's called with an + invalid pattern. Patch by Thomas Nyberg. + +- Issue #19883: Fixed possible integer overflows in zipimport. + +- Issue #26227: On Windows, getnameinfo(), gethostbyaddr() and + gethostbyname_ex() functions of the socket module now decode the hostname + from the ANSI code page rather than UTF-8. + +- Issue #26147: xmlrpc now works with strings not encodable with used + non-UTF-8 encoding. + +- Issue #25935: Garbage collector now breaks reference loops with OrderedDict. + +- Issue #16620: Fixed AttributeError in msilib.Directory.glob(). + +- Issue #26013: Added compatibility with broken protocol 2 pickles created + in old Python 3 versions (3.4.3 and lower). + +- Issue #25850: Use cross-compilation by default for 64-bit Windows. + +- Issue #17633: Improve zipimport's support for namespace packages. + +- Issue #24705: Fix sysconfig._parse_makefile not expanding ${} vars + appearing before $() vars. + +- Issue #22138: Fix mock.patch behavior when patching descriptors. Restore + original values after patching. Patch contributed by Sean McCully. + +- Issue #25672: In the ssl module, enable the SSL_MODE_RELEASE_BUFFERS mode + option if it is safe to do so. + +- Issue #26012: Don't traverse into symlinks for ** pattern in + pathlib.Path.[r]glob(). + +- Issue #24120: Ignore PermissionError when traversing a tree with + pathlib.Path.[r]glob(). Patch by Ulrich Petri. + +- Issue #25447: fileinput now uses sys.stdin as-is if it does not have a + buffer attribute (restores backward compatibility). + +- Issue #25447: Copying the lru_cache() wrapper object now always works, + independedly from the type of the wrapped object (by returning the original + object unchanged). + +- Issue #24103: Fixed possible use after free in ElementTree.XMLPullParser. + +- Issue #25860: os.fwalk() no longer skips remaining directories when error + occurs. Original patch by Samson Lee. + +- Issue #25914: Fixed and simplified OrderedDict.__sizeof__. + +- Issue #25902: Fixed various refcount issues in ElementTree iteration. + +- Issue #25717: Restore the previous behaviour of tolerating most fstat() + errors when opening files. This was a regression in 3.5a1, and stopped + anonymous temporary files from working in special cases. + +- Issue #24903: Fix regression in number of arguments compileall accepts when + '-d' is specified. The check on the number of arguments has been dropped + completely as it never worked correctly anyway. + +- Issue #25764: In the subprocess module, preserve any exception caused by + fork() failure when preexec_fn is used. + +- Issue #6478: _strptime's regexp cache now is reset after changing timezone + with time.tzset(). + +- Issue #14285: When executing a package with the "python -m package" option, + and package initialization fails, a proper traceback is now reported. The + "runpy" module now lets exceptions from package initialization pass back to + the caller, rather than raising ImportError. + +- Issue #19771: Also in runpy and the "-m" option, omit the irrelevant + message ". . . is a package and cannot be directly executed" if the package + could not even be initialized (e.g. due to a bad ``*.pyc`` file). + +- Issue #25177: Fixed problem with the mean of very small and very large + numbers. As a side effect, statistics.mean and statistics.variance should + be significantly faster. + +- Issue #25718: Fixed copying object with state with boolean value is false. + +- Issue #10131: Fixed deep copying of minidom documents. Based on patch + by Marian Ganisin. + +- Issue #25725: Fixed a reference leak in pickle.loads() when unpickling + invalid data including tuple instructions. + +- Issue #25663: In the Readline completer, avoid listing duplicate global + names, and search the global namespace before searching builtins. + +- Issue #25688: Fixed file leak in ElementTree.iterparse() raising an error. + +- Issue #23914: Fixed SystemError raised by unpickler on broken pickle data. + +- Issue #25691: Fixed crash on deleting ElementTree.Element attributes. + +- Issue #25624: ZipFile now always writes a ZIP_STORED header for directory + entries. Patch by Dingyuan Wang. + +- Skip getaddrinfo if host is already resolved. + Patch by A. Jesse Jiryu Davis. + +- Issue #26050: Add asyncio.StreamReader.readuntil() method. + Patch by Марк Коренберг. + +- Issue #25924: Avoid unnecessary serialization of getaddrinfo(3) calls on + OS X versions 10.5 or higher. Original patch by A. Jesse Jiryu Davis. + +- Issue #26406: Avoid unnecessary serialization of getaddrinfo(3) calls on + current versions of OpenBSD and NetBSD. Patch by A. Jesse Jiryu Davis. + +- Issue #26848: Fix asyncio/subprocess.communicate() to handle empty input. + Patch by Jack O'Connor. + +- Issue #27040: Add loop.get_exception_handler method + +- Issue #27041: asyncio: Add loop.create_future method + +- Issue #27223: asyncio: Fix _read_ready and _write_ready to respect + _conn_lost. + Patch by Łukasz Langa. + +- Issue #22970: asyncio: Fix inconsistency cancelling Condition.wait. + Patch by David Coles. + +IDLE +---- + +- Issue #5124: Paste with text selected now replaces the selection on X11. + This matches how paste works on Windows, Mac, most modern Linux apps, + and ttk widgets. Original patch by Serhiy Storchaka. + +- Issue #24759: Make clear in idlelib.idle_test.__init__ that the directory + is a private implementation of test.test_idle and tool for maintainers. + +- Issue #27196: Stop 'ThemeChanged' warnings when running IDLE tests. + These persisted after other warnings were suppressed in #20567. + Apply Serhiy Storchaka's update_idletasks solution to four test files. + Record this additional advice in idle_test/README.txt + +- Issue #20567: Revise idle_test/README.txt with advice about avoiding + tk warning messages from tests. Apply advice to several IDLE tests. + +- Issue #27117: Make colorizer htest and turtledemo work with dark themes. + Move code for configuring text widget colors to a new function. + +- Issue #26673: When tk reports font size as 0, change to size 10. + Such fonts on Linux prevented the configuration dialog from opening. + +- Issue #21939: Add test for IDLE's percolator. + Original patch by Saimadhav Heblikar. + +- Issue #21676: Add test for IDLE's replace dialog. + Original patch by Saimadhav Heblikar. + +- Issue #18410: Add test for IDLE's search dialog. + Original patch by Westley Martínez. + +- Issue #21703: Add test for IDLE's undo delegator. + Original patch by Saimadhav Heblikar . + +- Issue #27044: Add ConfigDialog.remove_var_callbacks to stop memory leaks. + +- Issue #23977: Add more asserts to test_delegator. + +- Issue #20640: Add tests for idlelib.configHelpSourceEdit. + Patch by Saimadhav Heblikar. + +- In the 'IDLE-console differences' section of the IDLE doc, clarify + how running with IDLE affects sys.modules and the standard streams. + +- Issue #25507: fix incorrect change in IOBinding that prevented printing. + Augment IOBinding htest to include all major IOBinding functions. + +- Issue #25905: Revert unwanted conversion of ' to ’ RIGHT SINGLE QUOTATION + MARK in README.txt and open this and NEWS.txt with 'ascii'. + Re-encode CREDITS.txt to utf-8 and open it with 'utf-8'. + +Documentation +------------- + +- Issue #19489: Moved the search box from the sidebar to the header and footer + of each page. Patch by Ammar Askar. + +- Issue #24136: Document the new PEP 448 unpacking syntax of 3.5. + +- Issue #26736: Used HTTPS for external links in the documentation if possible. + +- Issue #6953: Rework the Readline module documentation to group related + functions together, and add more details such as what underlying Readline + functions and variables are accessed. + +- Issue #23606: Adds note to ctypes documentation regarding cdll.msvcrt. + +- Issue #25500: Fix documentation to not claim that __import__ is searched for + in the global scope. + +- Issue #26014: Update 3.x packaging documentation: + * "See also" links to the new docs are now provided in the legacy pages + * links to setuptools documentation have been updated + +Tests +----- + +- Issue #21916: Added tests for the turtle module. Patch by ingrid, + Gregory Loyse and Jelle Zijlstra. + +- Issue #26523: The multiprocessing thread pool (multiprocessing.dummy.Pool) + was untested. + +- Issue #26015: Added new tests for pickling iterators of mutable sequences. + +- Issue #26325: Added test.support.check_no_resource_warning() to check that + no ResourceWarning is emitted. + +- Issue #25940: Changed test_ssl to use self-signed.pythontest.net. This + avoids relying on svn.python.org, which recently changed root certificate. + +- Issue #25616: Tests for OrderedDict are extracted from test_collections + into separate file test_ordered_dict. + +- Issue #26583: Skip test_timestamp_overflow in test_import if bytecode + files cannot be written. + +Build +----- + +- Issue #26884: Fix linking extension modules for cross builds. + Patch by Xavier de Gaye. + +- Issue #22359: Disable the rules for running _freeze_importlib and pgen when + cross-compiling. The output of these programs is normally saved with the + source code anyway, and is still regenerated when doing a native build. + Patch by Xavier de Gaye. + +- Issue #27229: Fix the cross-compiling pgen rule for in-tree builds. Patch + by Xavier de Gaye. + +- Issue #21668: Link audioop, _datetime, _ctypes_test modules to libm, + except on Mac OS X. Patch written by Xavier de Gaye. + +- Issue #25702: A --with-lto configure option has been added that will + enable link time optimizations at build time during a make profile-opt. + Some compilers and toolchains are known to not produce stable code when + using LTO, be sure to test things thoroughly before relying on it. + It can provide a few % speed up over profile-opt alone. + +- Issue #26624: Adds validation of ucrtbase[d].dll version with warning + for old versions. + +- Issue #17603: Avoid error about nonexistant fileblocks.o file by using a + lower-level check for st_blocks in struct stat. + +- Issue #26079: Fixing the build output folder for tix-8.4.3.6. Patch by + Bjoern Thiel. + +- Issue #26465: Update Windows builds to use OpenSSL 1.0.2g. + +- Issue #24421: Compile Modules/_math.c once, before building extensions. + Previously it could fail to compile properly if the math and cmath builds + were concurrent. + +- Issue #25348: Added ``--pgo`` and ``--pgo-job`` arguments to + ``PCbuild\build.bat`` for building with Profile-Guided Optimization. The + old ``PCbuild\build_pgo.bat`` script is now deprecated, and simply calls + ``PCbuild\build.bat --pgo %*``. + +- Issue #25827: Add support for building with ICC to ``configure``, including + a new ``--with-icc`` flag. + +- Issue #25696: Fix installation of Python on UNIX with make -j9. + +- Issue #26930: Update OS X 10.5+ 32-bit-only installer to build + and link with OpenSSL 1.0.2h. + +- Issue #26268: Update Windows builds to use OpenSSL 1.0.2f. + +- Issue #25136: Support Apple Xcode 7's new textual SDK stub libraries. + +- Issue #24324: Do not enable unreachable code warnings when using + gcc as the option does not work correctly in older versions of gcc + and has been silently removed as of gcc-4.5. + +Windows +------- + +- Issue #27053: Updates make_zip.py to correctly generate library ZIP file. + +- Issue #26268: Update the prepare_ssl.py script to handle OpenSSL releases + that don't include the contents of the include directory (that is, 1.0.2e + and later). + +- Issue #26071: bdist_wininst created binaries fail to start and find + 32bit Python + +- Issue #26073: Update the list of magic numbers in launcher + +- Issue #26065: Excludes venv from library when generating embeddable + distro. + +Tools/Demos +----------- + +- Issue #26799: Fix python-gdb.py: don't get C types once when the Python code + is loaded, but get C types on demand. The C types can change if + python-gdb.py is loaded before the Python executable. Patch written by Thomas + Ilsche. + +- Issue #26271: Fix the Freeze tool to properly use flags passed through + configure. Patch by Daniel Shaulov. + +- Issue #26489: Add dictionary unpacking support to Tools/parser/unparse.py. + Patch by Guo Ci Teo. + +- Issue #26316: Fix variable name typo in Argument Clinic. + +Misc +---- + +- Issue #17500, and https://github.com/python/pythondotorg/issues/945: Remove + unused and outdated icons. + + What's New in Python 3.5.1 final? ================================= @@ -4422,6 +5872,9 @@ IDLE Documentation ------------- +- Issue #22558: Add remaining doc links to source code for Python-coded modules. + Patch by Yoni Lavi. + - Issue #12067: Rewrite Comparisons section in the Expressions chapter of the language reference. Some of the details of comparing mixed types were incorrect or ambiguous. NotImplemented is only relevant at a lower level @@ -4751,6 +6204,12 @@ Library - Issue #24631: Fixed regression in the timeit module with multiline setup. +- Issue #18622: unittest.mock.mock_open().reset_mock would recurse infinitely. + Patch from Nicola Palumbo and Laurent De Buyst. + +- Issue #23661: unittest.mock side_effects can now be exceptions again. This + was a regression vs Python 3.4. Patch from Ignacio Rossi + - Issue #24608: chunk.Chunk.read() now always returns bytes, not str. - Issue #18684: Fixed reading out of the buffer in the re module. @@ -4761,9 +6220,6 @@ Library - Issue #15014: SMTP.auth() and SMTP.login() now support RFC 4954's optional initial-response argument to the SMTP AUTH command. -- Issue #6549: Remove hyphen from ttk.Style().element options. Only return result - from ttk.Style().configure if a result was generated or a query submitted. - - Issue #24669: Fix inspect.getsource() for 'async def' functions. Patch by Kai Groner. @@ -4775,6 +6231,7 @@ Build - Issue #24603: Update Windows builds and OS X 10.5 installer to use OpenSSL 1.0.2d. + What's New in Python 3.5.0 beta 3? ================================== @@ -4935,9 +6392,6 @@ Core and Builtins - Issue #24268: PEP 489: Multi-phase extension module initialization. Patch by Petr Viktorin. -- Issue #23359: Optimize set object internals by specializing the - hash table search into a lookup function and an insert function. - - Issue #23955: Add pyvenv.cfg option to suppress registry/environment lookup for generating sys.path on Windows. @@ -5058,8 +6512,8 @@ Library - Issue #1322: platform.dist() and platform.linux_distribution() functions are now deprecated. Initial patch by Vajrasky Kok. -- Issue #22486: Added the math.gcd() function. The fractions.gcd() function now is - deprecated. Based on patch by Mark Dickinson. +- Issue #22486: Added the math.gcd() function. The fractions.gcd() function + now is deprecated. Based on patch by Mark Dickinson. - Issue #24064: Property() docstrings are now writeable. (Patch by Berker Peksag.) @@ -5480,8 +6934,8 @@ Library writer failed in BufferedRWPair.close(). - Issue #23622: Unknown escapes in regular expressions that consist of ``'\'`` - and an ASCII letter now raise a deprecation warning and will be forbidden - in Python 3.6. + and ASCII letter now raise a deprecation warning and will be forbidden in + Python 3.6. - Issue #23671: string.Template now allows specifying the "self" parameter as a keyword argument. string.Formatter now allows specifying the "self" and |