.. bpo: 35746 .. date: 2019-01-15-18-16-05 .. nonce: nMSd0j .. release date: 2019-02-03 .. section: Security [CVE-2019-5010] Fix a NULL pointer deref in ssl module. The cert parser did not handle CRL distribution points with empty DP or URI correctly. A malicious or buggy certificate can result into segfault. Vulnerability (TALOS-2018-0758) reported by Colin Read and Nicolas Edet of Cisco. .. .. bpo: 34812 .. date: 2018-11-23-15-00-23 .. nonce: 84VQnb .. section: Security The :option:`-I` command line option (run Python in isolated mode) is now also copied by the :mod:`multiprocessing` and ``distutils`` modules when spawning child processes. Previously, only :option:`-E` and :option:`-s` options (enabled by :option:`-I`) were copied. .. .. bpo: 34791 .. date: 2018-09-24-18-49-25 .. nonce: 78GmIG .. section: Security The xml.sax and xml.dom.domreg no longer use environment variables to override parser implementations when sys.flags.ignore_environment is set by -E or -I arguments. .. .. bpo: 17239 .. date: 2018-09-11-18-30-55 .. nonce: kOpwK2 .. section: Security The xml.sax and xml.dom.minidom parsers no longer processes external entities by default. External DTD and ENTITY declarations no longer load files or create network connections. .. .. bpo: 34623 .. date: 2018-09-10-16-05-39 .. nonce: Ua9jMv .. section: Security CVE-2018-14647: The C accelerated _elementtree module now initializes hash randomization salt from _Py_HashSecret instead of libexpat's default CSPRNG. .. .. bpo: 34405 .. date: 2018-08-15-12-12-47 .. nonce: qbHTH_ .. section: Security Updated to OpenSSL 1.1.0i for Windows builds. .. .. bpo: 33871 .. date: 2018-06-26-19-35-33 .. nonce: S4HR9n .. section: Security Fixed sending the part of the file in :func:`os.sendfile` on macOS. Using the *trailers* argument could cause sending more bytes from the input file than was specified. .. .. bpo: 32533 .. date: 2018-05-28-08-55-30 .. nonce: IzwkBI .. section: Security Fixed thread-safety of error handling in _ssl. .. .. bpo: 33136 .. date: 2018-03-25-12-05-43 .. nonce: TzSN4x .. section: Security Harden ssl module against LibreSSL CVE-2018-8970. X509_VERIFY_PARAM_set1_host() is called with an explicit namelen. A new test ensures that NULL bytes are not allowed. .. .. bpo: 33001 .. date: 2018-03-05-10-09-51 .. nonce: elj4Aa .. section: Security Minimal fix to prevent buffer overrun in os.symlink on Windows .. .. bpo: 32981 .. date: 2018-03-02-10-24-52 .. nonce: O_qDyj .. section: Security Regexes in difflib and poplib were vulnerable to catastrophic backtracking. These regexes formed potential DOS vectors (REDOS). They have been refactored. This resolves CVE-2018-1060 and CVE-2018-1061. Patch by Jamie Davis. .. .. bpo: 28414 .. date: 2017-08-06-14-43-45 .. nonce: mzZ6vD .. section: Security The ssl module now allows users to perform their own IDN en/decoding when using SNI. .. .. bpo: 35877 .. date: 2019-02-01-22-38-11 .. nonce: Jrse8f .. section: Core and Builtins Make parenthesis optional for named expressions in while statement. Patch by Karthikeyan Singaravelan. .. .. bpo: 35814 .. date: 2019-01-24-13-25-21 .. nonce: r_MjA6 .. section: Core and Builtins Allow same right hand side expressions in annotated assignments as in normal ones. In particular, ``x: Tuple[int, int] = 1, 2`` (without parentheses on the right) is now allowed. .. .. bpo: 35766 .. date: 2019-01-22-19-17-27 .. nonce: gh1tHZ .. section: Core and Builtins Add the option to parse PEP 484 type comments in the ast module. (Off by default.) This is merging the key functionality of the third party fork thereof, [typed_ast](https://github.com/python/typed_ast). .. .. bpo: 35713 .. date: 2019-01-22-18-50-21 .. nonce: bTeUsa .. section: Core and Builtins Reorganize Python initialization to get working exceptions and sys.stderr earlier. .. .. bpo: 33416 .. date: 2019-01-19-19-41-53 .. nonce: VDeOU5 .. section: Core and Builtins Add end line and end column position information to the Python AST nodes. This is a C-level backwards incompatible change. .. .. bpo: 35720 .. date: 2019-01-12-23-33-04 .. nonce: LELKQx .. section: Core and Builtins Fixed a minor memory leak in pymain_parse_cmdline_impl function in Modules/main.c .. .. bpo: 35634 .. date: 2019-01-05-18-39-49 .. nonce: nVP_gs .. section: Core and Builtins ``func(**kwargs)`` will now raise an error when ``kwargs`` is a mapping containing multiple entries with the same key. An error was already raised when other keyword arguments are passed before ``**kwargs`` since Python 3.6. .. .. bpo: 35623 .. date: 2018-12-31-02-37-20 .. nonce: 24AQhY .. section: Core and Builtins Fix a crash when sorting very long lists. Patch by Stephan Hohe. .. .. bpo: 35214 .. date: 2018-12-30-15-36-23 .. nonce: GWDQcv .. section: Core and Builtins clang Memory Sanitizer build instrumentation was added to work around false positives from posix, socket, time, test_io, and test_faulthandler. .. .. bpo: 35560 .. date: 2018-12-22-22-19-51 .. nonce: 9vMWSP .. section: Core and Builtins Fix an assertion error in :func:`format` in debug build for floating point formatting with "n" format, zero padding and small width. Release build is not impacted. Patch by Karthikeyan Singaravelan. .. .. bpo: 35552 .. date: 2018-12-21-13-29-30 .. nonce: 1DzQQc .. section: Core and Builtins Format characters ``%s`` and ``%V`` in :c:func:`PyUnicode_FromFormat` and ``%s`` in :c:func:`PyBytes_FromFormat` no longer read memory past the limit if *precision* is specified. .. .. bpo: 35504 .. date: 2018-12-15-14-01-45 .. nonce: JtKczP .. section: Core and Builtins Fix segfaults and :exc:`SystemError`\ s when deleting certain attributes. Patch by Zackery Spytz. .. .. bpo: 35504 .. date: 2018-12-15-00-47-41 .. nonce: 9gVuen .. section: Core and Builtins Fixed a SystemError when delete the characters_written attribute of an OSError. .. .. bpo: 35494 .. date: 2018-12-14-18-02-34 .. nonce: IWOPtb .. section: Core and Builtins Improved syntax error messages for unbalanced parentheses in f-string. .. .. bpo: 35444 .. date: 2018-12-09-13-09-39 .. nonce: 9kYn4V .. section: Core and Builtins Fixed error handling in pickling methods when fail to look up builtin "getattr". Sped up pickling iterators. .. .. bpo: 35436 .. date: 2018-12-07-02-38-01 .. nonce: 0VW7p9 .. section: Core and Builtins Fix various issues with memory allocation error handling. Patch by Zackery Spytz. .. .. bpo: 35423 .. date: 2018-12-05-16-24-05 .. nonce: UIie_O .. section: Core and Builtins Separate the signal handling trigger in the eval loop from the "pending calls" machinery. There is no semantic change and the difference in performance is insignificant. .. .. bpo: 35357 .. date: 2018-12-03-21-20-24 .. nonce: rhhoiC .. section: Core and Builtins Internal attributes' names of unittest.mock._Call and unittest.mock.MagicProxy (name, parent & from_kall) are now prefixed with _mock_ in order to prevent clashes with widely used object attributes. Fixed minor typo in test function name. .. .. bpo: 35372 .. date: 2018-12-01-19-20-53 .. nonce: RwVJjZ .. section: Core and Builtins Fixed the code page decoder for input longer than 2 GiB containing undecodable bytes. .. .. bpo: 35336 .. date: 2018-11-29-23-59-52 .. nonce: 8LOz4F .. section: Core and Builtins Fix PYTHONCOERCECLOCALE=1 environment variable: only coerce the C locale if the LC_CTYPE locale is "C". .. .. bpo: 31241 .. date: 2018-11-21-14-05-51 .. nonce: Kin10- .. section: Core and Builtins The *lineno* and *col_offset* attributes of AST nodes for list comprehensions, generator expressions and tuples are now point to the opening parenthesis or square brace. For tuples without parenthesis they point to the position of the first item. .. .. bpo: 33954 .. date: 2018-11-20-22-33-38 .. nonce: RzSngM .. section: Core and Builtins For :meth:`str.format`, :meth:`float.__format__` and :meth:`complex.__format__` methods for non-ASCII decimal point when using the "n" formatter. .. .. bpo: 35269 .. date: 2018-11-17-10-18-29 .. nonce: gjm1LO .. section: Core and Builtins Fix a possible segfault involving a newly created coroutine. Patch by Zackery Spytz. .. .. bpo: 35224 .. date: 2018-11-13-14-26-54 .. nonce: F0B6UQ .. section: Core and Builtins Implement :pep:`572` (assignment expressions). Patch by Emily Morehouse. .. .. bpo: 32492 .. date: 2018-11-13-01-03-10 .. nonce: voIdcp .. section: Core and Builtins Speed up :func:`namedtuple` attribute access by 1.6x using a C fast-path for the name descriptors. Patch by Pablo Galindo. .. .. bpo: 35214 .. date: 2018-11-13-00-40-35 .. nonce: OQBjph .. section: Core and Builtins Fixed an out of bounds memory access when parsing a truncated unicode escape sequence at the end of a string such as ``'\N'``. It would read one byte beyond the end of the memory allocation. .. .. bpo: 35214 .. date: 2018-11-12-11-38-06 .. nonce: PCHKbX .. section: Core and Builtins The interpreter and extension modules have had annotations added so that they work properly under clang's Memory Sanitizer. A new configure flag --with-memory-sanitizer has been added to make test builds of this nature easier to perform. .. .. bpo: 35193 .. date: 2018-11-08-15-00-58 .. nonce: HzPS6R .. section: Core and Builtins Fix an off by one error in the bytecode peephole optimizer where it could read bytes beyond the end of bounds of an array when removing unreachable code. This bug was present in every release of Python 3.6 and 3.7 until now. .. .. bpo: 35169 .. date: 2018-11-05-21-19-05 .. nonce: _FyPI2 .. section: Core and Builtins Improved error messages for forbidden assignments. .. .. bpo: 34022 .. date: 2018-11-04-18-13-40 .. nonce: U3btVj .. section: Core and Builtins Fix handling of hash-based bytecode files in :mod:`zipimport`. Patch by Elvis Pranskevichus. .. .. bpo: 28401 .. date: 2018-11-03-10-37-29 .. nonce: RprDIg .. section: Core and Builtins Debug builds will no longer to attempt to import extension modules built for the ABI as they were never compatible to begin with. Patch by Stefano Rivera. .. .. bpo: 29341 .. date: 2018-10-25-20-53-32 .. nonce: jH-AMF .. section: Core and Builtins Clarify in the docstrings of :mod:`os` methods that path-like objects are also accepted as input parameters. .. .. bpo: 35050 .. date: 2018-10-23-15-03-53 .. nonce: 49wraS .. section: Core and Builtins :mod:`socket`: Fix off-by-one bug in length check for ``AF_ALG`` name and type. .. .. bpo: 29743 .. date: 2018-10-21-17-43-48 .. nonce: aeCcKR .. section: Core and Builtins Raise :exc:`ValueError` instead of :exc:`OverflowError` in case of a negative ``_length_`` in a :class:`ctypes.Array` subclass. Also raise :exc:`TypeError` instead of :exc:`AttributeError` for non-integer ``_length_``. Original patch by Oren Milman. .. .. bpo: 16806 .. date: 2018-10-20-18-05-58 .. nonce: zr3A9N .. section: Core and Builtins Fix ``lineno`` and ``col_offset`` for multi-line string tokens. .. .. bpo: 35029 .. date: 2018-10-20-10-26-15 .. nonce: t4tZcQ .. section: Core and Builtins :exc:`SyntaxWarning` raised as an exception at code generation time will be now replaced with a :exc:`SyntaxError` for better error reporting. .. .. bpo: 34983 .. date: 2018-10-14-17-26-41 .. nonce: l8XaZd .. section: Core and Builtins Expose :meth:`symtable.Symbol.is_nonlocal` in the symtable module. Patch by Pablo Galindo. .. .. bpo: 34974 .. date: 2018-10-13-22-24-19 .. nonce: 7LgTc2 .. section: Core and Builtins :class:`bytes` and :class:`bytearray` constructors no longer convert unexpected exceptions (e.g. :exc:`MemoryError` and :exc:`KeyboardInterrupt`) to :exc:`TypeError`. .. .. bpo: 34939 .. date: 2018-10-13-17-40-15 .. nonce: 0gpxlJ .. section: Core and Builtins Allow annotated names in module namespace that are declared global before the annotation happens. Patch by Pablo Galindo. .. .. bpo: 34973 .. date: 2018-10-13-16-42-03 .. nonce: B5M-3g .. section: Core and Builtins Fixed crash in :func:`bytes` when the :class:`list` argument is mutated while it is iterated. .. .. bpo: 34876 .. date: 2018-10-06-14-02-51 .. nonce: oBKBA4 .. section: Core and Builtins The *lineno* and *col_offset* attributes of the AST for decorated function and class refer now to the position of the corresponding ``def``, ``async def`` and ``class`` instead of the position of the first decorator. This leads to more correct line reporting in tracing. This is the only case when the position of child AST nodes can precede the position of the parent AST node. .. .. bpo: 34879 .. date: 2018-10-02-22-55-11 .. nonce: 7VNH2a .. section: Core and Builtins Fix a possible null pointer dereference in bytesobject.c. Patch by Zackery Spytz. .. .. bpo: 34784 .. date: 2018-10-02-09-10-47 .. nonce: 07hdgD .. section: Core and Builtins Fix the implementation of PyStructSequence_NewType in order to create heap allocated StructSequences. .. .. bpo: 32912 .. date: 2018-10-01-10-41-53 .. nonce: JeIOdM .. section: Core and Builtins A :exc:`SyntaxWarning` is now emitted instead of a :exc:`DeprecationWarning` for invalid escape sequences in string and bytes literals. .. .. bpo: 34854 .. date: 2018-09-30-19-27-13 .. nonce: 6TKTcB .. section: Core and Builtins Fixed a crash in compiling string annotations containing a lambda with a keyword-only argument that doesn't have a default value. .. .. bpo: 34850 .. date: 2018-09-30-11-19-55 .. nonce: CbgDwb .. section: Core and Builtins The compiler now produces a :exc:`SyntaxWarning` when identity checks (``is`` and ``is not``) are used with certain types of literals (e.g. strings, ints). These can often work by accident in CPython, but are not guaranteed by the language spec. The warning advises users to use equality tests (``==`` and ``!=``) instead. .. .. bpo: 34824 .. date: 2018-09-27-11-10-02 .. nonce: VLlCaU .. section: Core and Builtins Fix a possible null pointer dereference in Modules/_ssl.c. Patch by Zackery Spytz. .. .. bpo: 30156 .. date: 2018-09-24-17-51-15 .. nonce: pH0j5j .. section: Core and Builtins The C function ``property_descr_get()`` uses a "cached" tuple to optimize function calls. But this tuple can be discovered in debug mode with :func:`sys.getobjects()`. Remove the optimization, it's not really worth it and it causes 3 different crashes last years. .. .. bpo: 34762 .. date: 2018-09-21-11-06-56 .. nonce: 1nN53m .. section: Core and Builtins Fix contextvars C API to use PyObject* pointer types. .. .. bpo: 34751 .. date: 2018-09-20-15-41-58 .. nonce: Yiv0pV .. section: Core and Builtins The hash function for tuples is now based on xxHash which gives better collision results on (formerly) pathological cases. Additionally, on 64-bit systems it improves tuple hashes in general. Patch by Jeroen Demeyer with substantial contributions by Tim Peters. .. .. bpo: 34735 .. date: 2018-09-19-06-57-34 .. nonce: -3mrSJ .. section: Core and Builtins Fix a memory leak in Modules/timemodule.c. Patch by Zackery Spytz. .. .. bpo: 34683 .. date: 2018-09-15-19-32-34 .. nonce: msCiQE .. section: Core and Builtins Fixed a bug where some SyntaxError error pointed to locations that were off-by-one. .. .. bpo: 34651 .. date: 2018-09-13-12-21-08 .. nonce: v-bUeV .. section: Core and Builtins Only allow the main interpreter to fork. The avoids the possibility of affecting the main interpreter, which is critical to operation of the runtime. .. .. bpo: 34653 .. date: 2018-09-13-12-06-09 .. nonce: z8NE-i .. section: Core and Builtins Remove unused function PyParser_SimpleParseStringFilename. .. .. bpo: 32236 .. date: 2018-09-11-23-50-40 .. nonce: 3RupnN .. section: Core and Builtins Warn that line buffering is not supported if :func:`open` is called with binary mode and ``buffering=1``. .. .. bpo: 34641 .. date: 2018-09-11-23-12-33 .. nonce: gFBCc9 .. section: Core and Builtins Further restrict the syntax of the left-hand side of keyword arguments in function calls. In particular, ``f((keyword)=arg)`` is now disallowed. .. .. bpo: 34637 .. date: 2018-09-11-17-25-44 .. nonce: HSLqY4 .. section: Core and Builtins Make the *start* argument to *sum()* visible as a keyword argument. .. .. bpo: 1621 .. date: 2018-09-11-15-19-37 .. nonce: 7o19yG .. section: Core and Builtins Do not assume signed integer overflow behavior (C undefined behavior) when performing set hash table resizing. .. .. bpo: 34588 .. date: 2018-09-05-22-56-52 .. nonce: UIuPmL .. section: Core and Builtins Fix an off-by-one in the recursive call pruning feature of traceback formatting. .. .. bpo: 34485 .. date: 2018-08-29-11-04-19 .. nonce: c2AFdp .. section: Core and Builtins On Windows, the LC_CTYPE is now set to the user preferred locale at startup. Previously, the LC_CTYPE locale was "C" at startup, but changed when calling setlocale(LC_CTYPE, "") or setlocale(LC_ALL, ""). .. .. bpo: 34485 .. date: 2018-08-29-09-27-47 .. nonce: 5aJCmw .. section: Core and Builtins Standard streams like sys.stdout now use the "surrogateescape" error handler, instead of "strict", on the POSIX locale (when the C locale is not coerced and the UTF-8 Mode is disabled). .. .. bpo: 34485 .. date: 2018-08-28-23-01-14 .. nonce: dq1Kqk .. section: Core and Builtins Fix the error handler of standard streams like sys.stdout: PYTHONIOENCODING=":" is now ignored instead of setting the error handler to "strict". .. .. bpo: 34485 .. date: 2018-08-28-17-48-40 .. nonce: aFwck2 .. section: Core and Builtins Python now gets the locale encoding with C code to initialize the encoding of standard streams like sys.stdout. Moreover, the encoding is now initialized to the Python codec name to get a normalized encoding name and to ensure that the codec is loaded. The change avoids importing _bootlocale and _locale modules at startup by default. .. .. bpo: 34527 .. date: 2018-08-28-11-53-39 .. nonce: aBEX9b .. section: Core and Builtins On FreeBSD, Py_DecodeLocale() and Py_EncodeLocale() now also forces the ASCII encoding if the LC_CTYPE locale is "POSIX", not only if the LC_CTYPE locale is "C". .. .. bpo: 34527 .. date: 2018-08-28-11-52-13 .. nonce: sh5MQJ .. section: Core and Builtins The UTF-8 Mode is now also enabled by the "POSIX" locale, not only by the "C" locale. .. .. bpo: 34403 .. date: 2018-08-28-10-49-55 .. nonce: 4Q3LzP .. section: Core and Builtins On HP-UX with C or POSIX locale, sys.getfilesystemencoding() now returns "ascii" instead of "roman8" (when the UTF-8 Mode is disabled and the C locale is not coerced). .. .. bpo: 34523 .. date: 2018-08-28-01-45-01 .. nonce: aUUkc3 .. section: Core and Builtins The Python filesystem encoding is now read earlier during the Python initialization. .. .. bpo: 12458 .. date: 2018-08-15-20-46-49 .. nonce: ApHbx5 .. section: Core and Builtins Tracebacks show now correct line number for subexpressions in multiline expressions. Tracebacks show now the line number of the first line for multiline expressions instead of the line number of the last subexpression. .. .. bpo: 34408 .. date: 2018-08-14-22-35-19 .. nonce: aomWYW .. section: Core and Builtins Prevent a null pointer dereference and resource leakage in ``PyInterpreterState_New()``. .. .. bpo: 34400 .. date: 2018-08-14-03-52-43 .. nonce: AJD0bz .. section: Core and Builtins Fix undefined behavior in parsetok.c. Patch by Zackery Spytz. .. .. bpo: 33073 .. date: 2018-08-12-16-03-58 .. nonce: XWu1Jh .. section: Core and Builtins Added as_integer_ratio to ints to make them more interoperable with floats. .. .. bpo: 34377 .. date: 2018-08-10-15-05-00 .. nonce: EJMMY4 .. section: Core and Builtins Update valgrind suppression list to use ``_PyObject_Free``/``_PyObject_Realloc`` instead of ``PyObject_Free``/``PyObject_Realloc``. .. .. bpo: 34353 .. date: 2018-08-09-18-42-49 .. nonce: GIOm_8 .. section: Core and Builtins Added the "socket" option in the ``stat.filemode()`` Python implementation to match the C implementation. .. .. bpo: 34320 .. date: 2018-08-02-22-34-59 .. nonce: hNshAA .. section: Core and Builtins Fix ``dict(od)`` didn't copy iteration order of OrderedDict. .. .. bpo: 34113 .. date: 2018-07-28-10-34-00 .. nonce: eZ5FWV .. section: Core and Builtins Fixed crash on debug builds when opcode stack was adjusted with negative numbers. Patch by Constantin Petrisor. .. .. bpo: 34100 .. date: 2018-07-27-20-04-52 .. nonce: ypJQX1 .. section: Core and Builtins Compiler now merges constants in tuples and frozensets recursively. Code attributes like ``co_names`` are merged too. .. .. bpo: 34151 .. date: 2018-07-25-20-26-02 .. nonce: Q2pK9Q .. section: Core and Builtins Performance of list concatenation, repetition and slicing operations is slightly improved. Patch by Sergey Fedoseev. .. .. bpo: 34170 .. date: 2018-07-25-19-23-33 .. nonce: v1h_H2 .. section: Core and Builtins -X dev: it is now possible to override the memory allocator using PYTHONMALLOC even if the developer mode is enabled. .. .. bpo: 33237 .. date: 2018-07-24-12-54-57 .. nonce: O95mps .. section: Core and Builtins Improved :exc:`AttributeError` message for partially initialized module. .. .. bpo: 34149 .. date: 2018-07-23-21-49-05 .. nonce: WSV-_g .. section: Core and Builtins Fix min and max functions to get default behavior when key is None. .. .. bpo: 34125 .. date: 2018-07-23-16-34-03 .. nonce: jCl2Q2 .. section: Core and Builtins Profiling of unbound built-in methods now works when ``**kwargs`` is given. .. .. bpo: 34141 .. date: 2018-07-18-08-36-58 .. nonce: Fo7Q5r .. section: Core and Builtins Optimized pickling atomic types (None, bool, int, float, bytes, str). .. .. bpo: 34126 .. date: 2018-07-16-20-55-29 .. nonce: mBVmgc .. section: Core and Builtins Fix crashes when profiling certain invalid calls of unbound methods. Patch by Jeroen Demeyer. .. .. bpo: 24618 .. date: 2018-07-14-14-01-37 .. nonce: iTKjD_ .. section: Core and Builtins Fixed reading invalid memory when create the code object with too small varnames tuple or too large argument counts. .. .. bpo: 34068 .. date: 2018-07-14-08-58-46 .. nonce: 9xfM55 .. section: Core and Builtins In :meth:`io.IOBase.close`, ensure that the :attr:`~io.IOBase.closed` attribute is not set with a live exception. Patch by Zackery Spytz and Serhiy Storchaka. .. .. bpo: 34087 .. date: 2018-07-13-22-09-55 .. nonce: I1Bxfc .. section: Core and Builtins Fix buffer overflow while converting unicode to numeric values. .. .. bpo: 34080 .. date: 2018-07-10-11-24-16 .. nonce: 8t7PtO .. section: Core and Builtins Fixed a memory leak in the compiler when it raised some uncommon errors during tokenizing. .. .. bpo: 34066 .. date: 2018-07-07-20-15-34 .. nonce: y9vs6s .. section: Core and Builtins Disabled interruption by Ctrl-C between calling ``open()`` and entering a **with** block in ``with open()``. .. .. bpo: 34042 .. date: 2018-07-05-15-51-29 .. nonce: Gr9XUH .. section: Core and Builtins Fix dict.copy() to maintain correct total refcount (as reported by sys.gettotalrefcount()). .. .. bpo: 33418 .. date: 2018-07-03-19-00-10 .. nonce: cfGm3n .. section: Core and Builtins Fix potential memory leak in function object when it creates reference cycle. .. .. bpo: 33985 .. date: 2018-06-27-18-56-41 .. nonce: ILJ3Af .. section: Core and Builtins Implement contextvars.ContextVar.name attribute. .. .. bpo: 33956 .. date: 2018-06-25-20-42-44 .. nonce: 1qoTwD .. section: Core and Builtins Update vendored Expat library copy to version 2.2.5. .. .. bpo: 24596 .. date: 2018-06-25-16-54-05 .. nonce: Rkwova .. section: Core and Builtins Decref the module object in :c:func:`PyRun_SimpleFileExFlags` before calling :c:func:`PyErr_Print()`. Patch by Zackery Spytz. .. .. bpo: 33451 .. date: 2018-06-23-15-32-02 .. nonce: sWN-1l .. section: Core and Builtins Close directly executed pyc files before calling ``PyEval_EvalCode()``. .. .. bpo: 1617161 .. date: 2018-06-21-21-42-15 .. nonce: tSo2yM .. section: Core and Builtins The hash of :class:`BuiltinMethodType` instances (methods of built-in classes) now depends on the hash of the identity of *__self__* instead of its value. The hash and equality of :class:`ModuleType` and :class:`MethodWrapperType` instances (methods of user-defined classes and some methods of built-in classes like ``str.__add__``) now depend on the hash and equality of the identity of *__self__* instead of its value. :class:`MethodWrapperType` instances no longer support ordering. .. .. bpo: 33824 .. date: 2018-06-15-19-39-06 .. nonce: DfWHT3 .. section: Core and Builtins Fix "LC_ALL=C python3.7 -V": reset properly the command line parser when the encoding changes after reading the Python configuration. .. .. bpo: 33803 .. date: 2018-06-07-20-18-38 .. nonce: n-Nq6_ .. section: Core and Builtins Fix a crash in hamt.c caused by enabling GC tracking for an object that hadn't all of its fields set to NULL. .. .. bpo: 33738 .. date: 2018-06-07-18-34-19 .. nonce: ODZS7a .. section: Core and Builtins Seven macro incompatibilities with the Limited API were fixed, and the macros :c:func:`PyIter_Check`, :c:func:`PyIndex_Check` and :c:func:`PyExceptionClass_Name` were added as functions. A script for automatic macro checks was added. .. .. bpo: 33786 .. date: 2018-06-06-23-24-40 .. nonce: lBvT8z .. section: Core and Builtins Fix asynchronous generators to handle GeneratorExit in athrow() correctly .. .. bpo: 30167 .. date: 2018-06-05-15-49-02 .. nonce: e956hA .. section: Core and Builtins ``PyRun_SimpleFileExFlags`` removes ``__cached__`` from module in addition to ``__file__``. .. .. bpo: 33706 .. date: 2018-05-31-14-50-04 .. nonce: ztlH04 .. section: Core and Builtins Fix a crash in Python initialization when parsing the command line options. Thanks Christoph Gohlke for the bug report and the fix! .. .. bpo: 33597 .. date: 2018-05-28-21-17-31 .. nonce: r0ToM4 .. section: Core and Builtins Reduce ``PyGC_Head`` size from 3 words to 2 words. .. .. bpo: 30654 .. date: 2018-05-28-12-28-53 .. nonce: 9fDJye .. section: Core and Builtins Fixed reset of the SIGINT handler to SIG_DFL on interpreter shutdown even when there was a custom handler set previously. Patch by Philipp Kerling. .. .. bpo: 33622 .. date: 2018-05-23-20-46-14 .. nonce: xPucO9 .. section: Core and Builtins Fixed a leak when the garbage collector fails to add an object with the ``__del__`` method or referenced by it into the :data:`gc.garbage` list. :c:func:`PyGC_Collect` can now be called when an exception is set and preserves it. .. .. bpo: 33462 .. date: 2018-05-23-17-18-02 .. nonce: gurbpbrhe .. section: Core and Builtins Make dict and dict views reversible. Patch by Rémi Lapeyre. .. .. bpo: 23722 .. date: 2018-05-17-13-06-36 .. nonce: xisqZk .. section: Core and Builtins A :exc:`RuntimeError` is now raised when the custom metaclass doesn't provide the ``__classcell__`` entry in the namespace passed to ``type.__new__``. A :exc:`DeprecationWarning` was emitted in Python 3.6--3.7. .. .. bpo: 33499 .. date: 2018-05-15-10-48-47 .. nonce: uBEc06 .. section: Core and Builtins Add :envvar:`PYTHONPYCACHEPREFIX` environment variable and :option:`-X` ``pycache_prefix`` command-line option to set an alternate root directory for writing module bytecode cache files. .. .. bpo: 25711 .. date: 2018-05-14-18-54-03 .. nonce: 9xfq-v .. section: Core and Builtins The :mod:`zipimport` module has been rewritten in pure Python. .. .. bpo: 33509 .. date: 2018-05-14-17-31-02 .. nonce: pIUfTd .. section: Core and Builtins Fix module_globals parameter of warnings.warn_explicit(): don't crash if module_globals is not a dict. .. .. bpo: 31849 .. date: 2018-05-14-11-00-00 .. nonce: EmHaH4 .. section: Core and Builtins Fix signed/unsigned comparison warning in pyhash.c. .. .. bpo: 33475 .. date: 2018-05-13-01-26-18 .. nonce: rI0y1U .. section: Core and Builtins Fixed miscellaneous bugs in converting annotations to strings and optimized parentheses in the string representation. .. .. bpo: 20104 .. date: 2018-05-05-23-26-58 .. nonce: tDBciE .. section: Core and Builtins Added support for the ``setpgroup``, ``resetids``, ``setsigmask``, ``setsigdef`` and ``scheduler`` parameters of ``posix_spawn``. Patch by Pablo Galindo. .. .. bpo: 33391 .. date: 2018-05-02-08-36-03 .. nonce: z4a7rb .. section: Core and Builtins Fix a leak in set_symmetric_difference(). .. .. bpo: 33363 .. date: 2018-04-26-22-48-28 .. nonce: 8RCnN2 .. section: Core and Builtins Raise a SyntaxError for ``async with`` and ``async for`` statements outside of async functions. .. .. bpo: 28055 .. date: 2018-04-25-20-44-42 .. nonce: f49kfC .. section: Core and Builtins Fix unaligned accesses in siphash24(). Patch by Rolf Eike Beer. .. .. bpo: 33128 .. date: 2018-04-24-22-31-04 .. nonce: g2yLuf .. section: Core and Builtins Fix a bug that causes PathFinder to appear twice on sys.meta_path. Patch by Pablo Galindo Salgado. .. .. bpo: 33331 .. date: 2018-04-22-13-41-59 .. nonce: s_DxdL .. section: Core and Builtins Modules imported last are now cleared first at interpreter shutdown. .. .. bpo: 33312 .. date: 2018-04-19-08-30-07 .. nonce: mDe2iL .. section: Core and Builtins Fixed clang ubsan (undefined behavior sanitizer) warnings in dictobject.c by adjusting how the internal struct _dictkeysobject shared keys structure is declared. .. .. bpo: 33305 .. date: 2018-04-18-14-17-44 .. nonce: 9z3dDH .. section: Core and Builtins Improved syntax error messages for invalid numerical literals. .. .. bpo: 33306 .. date: 2018-04-18-12-23-30 .. nonce: tSM3cp .. section: Core and Builtins Improved syntax error messages for unbalanced parentheses. .. .. bpo: 33234 .. date: 2018-04-17-01-24-51 .. nonce: l9IDtp .. section: Core and Builtins The list constructor will pre-size and not over-allocate when the input length is known. .. .. bpo: 33270 .. date: 2018-04-14-13-12-50 .. nonce: UmVV6i .. section: Core and Builtins Intern the names for all anonymous code objects. Patch by Zackery Spytz. .. .. bpo: 30455 .. date: 2018-04-14-11-02-57 .. nonce: ANRwjo .. section: Core and Builtins The C and Python code and the documentation related to tokens are now generated from a single source file :file:`Grammar/Tokens`. .. .. bpo: 33176 .. date: 2018-04-13-22-31-09 .. nonce: PB9com .. section: Core and Builtins Add a ``toreadonly()`` method to memoryviews. .. .. bpo: 33231 .. date: 2018-04-05-22-20-44 .. nonce: 3Jmo0q .. section: Core and Builtins Fix potential memory leak in ``normalizestring()``. .. .. bpo: 33205 .. date: 2018-04-03-00-58-41 .. nonce: lk2F3r .. section: Core and Builtins Change dict growth function from ``round_up_to_power_2(used*2+hashtable_size/2)`` to ``round_up_to_power_2(used*3)``. Previously, dict is shrinked only when ``used == 0``. Now dict has more chance to be shrinked. .. .. bpo: 29922 .. date: 2018-04-03-00-30-25 .. nonce: CdLuMl .. section: Core and Builtins Improved error messages in 'async with' when ``__aenter__()`` or ``__aexit__()`` return non-awaitable object. .. .. bpo: 33199 .. date: 2018-04-02-09-32-40 .. nonce: TPnxQu .. section: Core and Builtins Fix ``ma_version_tag`` in dict implementation is uninitialized when copying from key-sharing dict. .. .. bpo: 33053 .. date: 2018-03-25-19-49-06 .. nonce: V3xlsH .. section: Core and Builtins When using the -m switch, sys.path[0] is now explicitly expanded as the *starting* working directory, rather than being left as the empty path (which allows imports from the current working directory at the time of the import) .. .. bpo: 33138 .. date: 2018-03-25-19-25-14 .. nonce: aSqudH .. section: Core and Builtins Changed standard error message for non-pickleable and non-copyable types. It now says "cannot pickle" instead of "can't pickle" or "cannot serialize". .. .. bpo: 33018 .. date: 2018-03-22-23-09-06 .. nonce: 0ncEJV .. section: Core and Builtins Improve consistency of errors raised by ``issubclass()`` when called with a non-class and an abstract base class as the first and second arguments, respectively. Patch by Josh Bronson. .. .. bpo: 33083 .. date: 2018-03-19-00-59-20 .. nonce: Htztjl .. section: Core and Builtins ``math.factorial`` no longer accepts arguments that are not int-like. Patch by Pablo Galindo. .. .. bpo: 33041 .. date: 2018-03-18-13-56-14 .. nonce: XwPhI2 .. section: Core and Builtins Added new opcode :opcode:`END_ASYNC_FOR` and fixes the following issues: * Setting global :exc:`StopAsyncIteration` no longer breaks ``async for`` loops. * Jumping into an ``async for`` loop is now disabled. * Jumping out of an ``async for`` loop no longer corrupts the stack. .. .. bpo: 25750 .. date: 2018-03-14-21-42-17 .. nonce: lxgkQz .. section: Core and Builtins Fix rare Python crash due to bad refcounting in ``type_getattro()`` if a descriptor deletes itself from the class. Patch by Jeroen Demeyer. .. .. bpo: 33041 .. date: 2018-03-10-15-16-40 .. nonce: -ak5Fk .. section: Core and Builtins Fixed bytecode generation for "async for" with a complex target. A StopAsyncIteration raised on assigning or unpacking will be now propagated instead of stopping the iteration. .. .. bpo: 33026 .. date: 2018-03-08-09-48-38 .. nonce: QZA3Ba .. section: Core and Builtins Fixed jumping out of "with" block by setting f_lineno. .. .. bpo: 33005 .. date: 2018-03-06-12-19-19 .. nonce: LP-V2U .. section: Core and Builtins Fix a crash on fork when using a custom memory allocator (ex: using PYTHONMALLOC env var). _PyGILState_Reinit() and _PyInterpreterState_Enable() now use the default RAW memory allocator to allocate a new interpreters mutex on fork. .. .. bpo: 32911 .. date: 2018-02-27-20-57-00 .. nonce: cmKfco .. section: Core and Builtins Due to unexpected compatibility issues discovered during downstream beta testing, reverted :issue:`29463`. ``docstring`` field is removed from Module, ClassDef, FunctionDef, and AsyncFunctionDef ast nodes which was added in 3.7a1. Docstring expression is restored as a first statement in their body. Based on patch by Inada Naoki. .. .. bpo: 17288 .. date: 2018-02-27-13-36-21 .. nonce: Gdj24S .. section: Core and Builtins Prevent jumps from 'return' and 'exception' trace events. .. .. bpo: 32946 .. date: 2018-02-25-10-52-40 .. nonce: Lo09rG .. section: Core and Builtins Importing names from already imported module with "from ... import ..." is now 30% faster if the module is not a package. .. .. bpo: 32932 .. date: 2018-02-24-21-51-42 .. nonce: 2cz31L .. section: Core and Builtins Make error message more revealing when there are non-str objects in ``__all__``. .. .. bpo: 32925 .. date: 2018-02-24-00-07-05 .. nonce: e-7Ufh .. section: Core and Builtins Optimized iterating and containing test for literal lists consisting of non-constants: ``x in [a, b]`` and ``for x in [a, b]``. The case of all constant elements already was optimized. .. .. bpo: 32889 .. date: 2018-02-20-21-53-48 .. nonce: J6eWy5 .. section: Core and Builtins Update Valgrind suppression list to account for the rename of ``Py_ADDRESS_IN_RANG`` to ``address_in_range``. .. .. bpo: 32836 .. date: 2018-02-14-12-35-47 .. nonce: bThJnx .. section: Core and Builtins Don't use temporary variables in cases of list/dict/set comprehensions .. .. bpo: 31356 .. date: 2018-02-02-08-50-46 .. nonce: MNwUOQ .. section: Core and Builtins Remove the new API added in bpo-31356 (gc.ensure_disabled() context manager). .. .. bpo: 32305 .. date: 2018-02-01-10-56-41 .. nonce: dkU9Qa .. section: Core and Builtins For namespace packages, ensure that both ``__file__`` and ``__spec__.origin`` are set to None. .. .. bpo: 32303 .. date: 2018-02-01-10-16-28 .. nonce: VsvhSl .. section: Core and Builtins Make sure ``__spec__.loader`` matches ``__loader__`` for namespace packages. .. .. bpo: 32711 .. date: 2018-01-29-14-36-37 .. nonce: 8hQFJP .. section: Core and Builtins Fix the warning messages for Python/ast_unparse.c. Patch by Stéphane Wirtel .. .. bpo: 32583 .. date: 2018-01-26-21-20-21 .. nonce: Fh3fau .. section: Core and Builtins Fix possible crashing in builtin Unicode decoders caused by write out-of-bound errors when using customized decode error handlers. .. .. bpo: 32489 .. date: 2018-01-03-23-12-43 .. nonce: SDEPHB .. section: Core and Builtins A :keyword:`continue` statement is now allowed in the :keyword:`finally` clause. .. .. bpo: 17611 .. date: 2017-12-24-19-48-59 .. nonce: P85kWL .. section: Core and Builtins Simplified the interpreter loop by moving the logic of unrolling the stack of blocks into the compiler. The compiler emits now explicit instructions for adjusting the stack of values and calling the cleaning up code for :keyword:`break`, :keyword:`continue` and :keyword:`return`. Removed opcodes :opcode:`BREAK_LOOP`, :opcode:`CONTINUE_LOOP`, :opcode:`SETUP_LOOP` and :opcode:`SETUP_EXCEPT`. Added new opcodes :opcode:`ROT_FOUR`, :opcode:`BEGIN_FINALLY` and :opcode:`CALL_FINALLY` and :opcode:`POP_FINALLY`. Changed the behavior of :opcode:`END_FINALLY` and :opcode:`WITH_CLEANUP_START`. .. .. bpo: 32285 .. date: 2017-12-12-13-43-13 .. nonce: LzKSwz .. section: Core and Builtins New function unicodedata.is_normalized, which can check whether a string is in a specific normal form. .. .. bpo: 10544 .. date: 2017-11-26-00-59-22 .. nonce: fHOM3V .. section: Core and Builtins Yield expressions are now disallowed in comprehensions and generator expressions except the expression for the outermost iterable. .. .. bpo: 32117 .. date: 2017-11-22-15-43-14 .. nonce: -vloh8 .. section: Core and Builtins Iterable unpacking is now allowed without parentheses in yield and return statements, e.g. ``yield 1, 2, 3, *rest``. Thanks to David Cuthbert for the change and Jordan Chapman for added tests. .. .. bpo: 31902 .. date: 2017-10-30-12-44-50 .. nonce: a07fa57 .. section: Core and Builtins Fix the ``col_offset`` attribute for ast nodes ``ast.AsyncFor``, ``ast.AsyncFunctionDef``, and ``ast.AsyncWith``. Previously, ``col_offset`` pointed to the keyword after ``async``. .. .. bpo: 25862 .. date: 2017-10-07-10-13-15 .. nonce: FPYBA5 .. section: Core and Builtins Fix assertion failures in the ``tell()`` method of ``io.TextIOWrapper``. Patch by Zackery Spytz. .. .. bpo: 21983 .. date: 2017-10-02-21-02-14 .. nonce: UoC319 .. section: Core and Builtins Fix a crash in ``ctypes.cast()`` in case the type argument is a ctypes structured data type. Patch by Eryk Sun and Oren Milman. .. .. bpo: 31577 .. date: 2017-09-25-20-36-24 .. nonce: jgYsSA .. section: Core and Builtins Fix a crash in ``os.utime()`` in case of a bad ns argument. Patch by Oren Milman. .. .. bpo: 29832 .. date: 2017-09-12-08-11-01 .. nonce: Kuf2M7 .. section: Core and Builtins Remove references to 'getsockaddrarg' from various socket error messages. Patch by Oren Milman. .. .. bpo: 35845 .. date: 2019-02-02-00-04-01 .. nonce: 1jx2wk .. section: Library Add 'order' parameter to memoryview.tobytes(). .. .. bpo: 35864 .. date: 2019-01-30-20-22-36 .. nonce: ig9KnG .. section: Library The _asdict() method for collections.namedtuple now returns a regular dict instead of an OrderedDict. .. .. bpo: 35537 .. date: 2019-01-29-17-24-52 .. nonce: Q0ktFC .. section: Library An ExitStack is now used internally within subprocess.Popen to clean up pipe file handles. No behavior change in normal operation. But if closing one handle were ever to cause an exception, the others will now be closed instead of leaked. (patch by Giampaolo Rodola) .. .. bpo: 35847 .. date: 2019-01-29-09-11-09 .. nonce: eiSi4t .. section: Library RISC-V needed the CTYPES_PASS_BY_REF_HACK. Fixes ctypes Structure test_pass_by_value. .. .. bpo: 35813 .. date: 2019-01-23-22-44-37 .. nonce: Yobj-Y .. section: Library Shared memory submodule added to multiprocessing to avoid need for serialization between processes .. .. bpo: 35780 .. date: 2019-01-19-17-01-43 .. nonce: CLf7fT .. section: Library Fix lru_cache() errors arising in recursive, reentrant, or multi-threaded code. These errors could result in orphan links and in the cache being trapped in a state with fewer than the specified maximum number of links. Fix handling of negative maxsize which should have been treated as zero. Fix errors in toggling the "full" status flag. Fix misordering of links when errors are encountered. Sync-up the C code and pure Python code for the space saving path in functions with a single positional argument. In this common case, the space overhead of an lru cache entry is reduced by almost half. Fix counting of cache misses. In error cases, the miss count was out of sync with the actual number of times the underlying user function was called. .. .. bpo: 35537 .. date: 2019-01-18-13-44-13 .. nonce: R1lbTl .. section: Library :func:`os.posix_spawn` and :func:`os.posix_spawnp` now have a *setsid* parameter. .. .. bpo: 23846 .. date: 2019-01-15-13-31-30 .. nonce: LT_qL8 .. section: Library :class:`asyncio.ProactorEventLoop` now catches and logs send errors when the self-pipe is full. .. .. bpo: 34323 .. date: 2019-01-14-17-34-36 .. nonce: CRErrt .. section: Library :mod:`asyncio`: Enhance ``IocpProactor.close()`` log: wait 1 second before the first log, then log every second. Log also the number of seconds since ``close()`` was called. .. .. bpo: 35674 .. date: 2019-01-14-14-13-08 .. nonce: kamWqz .. section: Library Add a new :func:`os.posix_spawnp` function. Patch by Joannah Nanjekye. .. .. bpo: 35733 .. date: 2019-01-13-18-42-41 .. nonce: eFfLiv .. section: Library ``ast.Constant(boolean)`` no longer an instance of :class:`ast.Num`. Patch by Anthony Sottile. .. .. bpo: 35726 .. date: 2019-01-13-01-33-00 .. nonce: dasdas .. section: Library QueueHandler.prepare() now makes a copy of the record before modifying and enqueueing it, to avoid affecting other handlers in the chain. .. .. bpo: 35719 .. date: 2019-01-11-20-21-59 .. nonce: qyRcpE .. section: Library Sped up multi-argument :mod:`math` functions atan2(), copysign(), remainder() and hypot() by 1.3--2.5 times. .. .. bpo: 35717 .. date: 2019-01-11-17-56-15 .. nonce: 6TDTB_ .. section: Library Fix KeyError exception raised when using enums and compile. Patch contributed by Rémi Lapeyre. .. .. bpo: 35699 .. date: 2019-01-11-07-09-25 .. nonce: VDiENF .. section: Library Fixed detection of Visual Studio Build Tools 2017 in distutils .. .. bpo: 32710 .. date: 2019-01-10-15-55-10 .. nonce: KwECPu .. section: Library Fix memory leaks in asyncio ProactorEventLoop on overlapped operation failure. .. .. bpo: 35702 .. date: 2019-01-10-14-03-12 .. nonce: _ct_0H .. section: Library The :const:`time.CLOCK_UPTIME_RAW` constant is now available for macOS 10.12. .. .. bpo: 32710 .. date: 2019-01-08-14-00-52 .. nonce: Sn5Ujj .. section: Library Fix a memory leak in asyncio in the ProactorEventLoop when ``ReadFile()`` or ``WSASend()`` overlapped operation fail immediately: release the internal buffer. .. .. bpo: 35682 .. date: 2019-01-08-01-54-02 .. nonce: KDM9lk .. section: Library Fix ``asyncio.ProactorEventLoop.sendfile()``: don't attempt to set the result of an internal future if it's already done. .. .. bpo: 35283 .. date: 2019-01-07-17-17-16 .. nonce: WClosC .. section: Library Add a deprecated warning for the :meth:`threading.Thread.isAlive` method. Patch by Donghee Na. .. .. bpo: 35664 .. date: 2019-01-04-22-18-25 .. nonce: Z-Gyyj .. section: Library Improve operator.itemgetter() performance by 33% with optimized argument handling and with adding a fast path for the common case of a single non-negative integer index into a tuple (which is the typical use case in the standard library). .. .. bpo: 35643 .. date: 2019-01-02-20-04-49 .. nonce: DaMiaV .. section: Library Fixed a SyntaxWarning: invalid escape sequence in Modules/_sha3/cleanup.py. Patch by Mickaël Schoentgen. .. .. bpo: 35619 .. date: 2018-12-30-19-50-36 .. nonce: ZRXdhy .. section: Library Improved support of custom data descriptors in :func:`help` and :mod:`pydoc`. .. .. bpo: 28503 .. date: 2018-12-30-14-56-33 .. nonce: V4kNN3 .. section: Library The ``crypt`` module now internally uses the ``crypt_r()`` library function instead of ``crypt()`` when available. .. .. bpo: 35614 .. date: 2018-12-30-01-10-50 .. nonce: cnkM4f .. section: Library Fixed help() on metaclasses. Patch by Sanyam Khurana. .. .. bpo: 35568 .. date: 2018-12-27-19-23-00 .. nonce: PutiOC .. section: Library Expose ``raise(signum)`` as ``raise_signal`` .. .. bpo: 35588 .. date: 2018-12-26-10-55-59 .. nonce: PSR6Ez .. section: Library The floor division and modulo operations and the :func:`divmod` function on :class:`fractions.Fraction` types are 2--4x faster. Patch by Stefan Behnel. .. .. bpo: 35585 .. date: 2018-12-26-02-28-00 .. nonce: Lkzd3Z .. section: Library Speed-up building enums by value, e.g. http.HTTPStatus(200). .. .. bpo: 30561 .. date: 2018-12-23-22-27-59 .. nonce: PSRQ2w .. section: Library random.gammavariate(1.0, beta) now computes the same result as random.expovariate(1.0 / beta). This synchronizes the two algorithms and eliminates some idiosyncrasies in the old implementation. It does however produce a difference stream of random variables than it used to. .. .. bpo: 35537 .. date: 2018-12-20-16-24-51 .. nonce: z4E7aA .. section: Library The :mod:`subprocess` module can now use the :func:`os.posix_spawn` function in some cases for better performance. .. .. bpo: 35526 .. date: 2018-12-18-21-12-25 .. nonce: fYvo6H .. section: Library Delaying the 'joke' of barry_as_FLUFL.mandatory to Python version 4.0 .. .. bpo: 35523 .. date: 2018-12-18-13-52-13 .. nonce: SkoMno .. section: Library Remove :mod:`ctypes` callback workaround: no longer create a callback at startup. Avoid SELinux alert on ``import ctypes`` and ``import uuid``. .. .. bpo: 31784 .. date: 2018-12-17-11-43-11 .. nonce: W0gDjC .. section: Library :func:`uuid.uuid1` now calls :func:`time.time_ns` rather than ``int(time.time() * 1e9)``. .. .. bpo: 35513 .. date: 2018-12-16-23-28-49 .. nonce: pn-Zh3 .. section: Library :class:`~unittest.runner.TextTestRunner` of :mod:`unittest.runner` now uses :func:`time.perf_counter` rather than :func:`time.time` to measure the execution time of a test: :func:`time.time` can go backwards, whereas :func:`time.perf_counter` is monotonic. .. .. bpo: 35502 .. date: 2018-12-14-23-56-48 .. nonce: gLHuFS .. section: Library Fixed reference leaks in :class:`xml.etree.ElementTree.TreeBuilder` in case of unfinished building of the tree (in particular when an error was raised during parsing XML). .. .. bpo: 35348 .. date: 2018-12-14-13-27-45 .. nonce: u3Y2an .. section: Library Make :func:`platform.architecture` parsing of ``file`` command output more reliable: add the ``-b`` option to the ``file`` command to omit the filename, force the usage of the C locale, and search also the "shared object" pattern. .. .. bpo: 35491 .. date: 2018-12-14-12-12-15 .. nonce: jHsNOU .. section: Library :mod:`multiprocessing`: Add ``Pool.__repr__()`` and enhance ``BaseProcess.__repr__()`` (add pid and parent pid) to ease debugging. Pool state constant values are now strings instead of integers, for example ``RUN`` value becomes ``'RUN'`` instead of ``0``. .. .. bpo: 35477 .. date: 2018-12-13-00-10-51 .. nonce: hHyy06 .. section: Library :meth:`multiprocessing.Pool.__enter__` now fails if the pool is not running: ``with pool:`` fails if used more than once. .. .. bpo: 31446 .. date: 2018-12-12-22-52-34 .. nonce: l--Fjz .. section: Library Copy command line that was passed to CreateProcessW since this function can change the content of the input buffer. .. .. bpo: 35471 .. date: 2018-12-12-16-25-21 .. nonce: SK8jFC .. section: Library Python 2.4 dropped MacOS 9 support. The macpath module was deprecated in Python 3.7. The module is now removed. .. .. bpo: 23057 .. date: 2018-12-12-16-24-55 .. nonce: OB4Z1Y .. section: Library Unblock Proactor event loop when keyboard interrupt is received on Windows .. .. bpo: 35052 .. date: 2018-12-10-09-48-27 .. nonce: xE1ymg .. section: Library Fix xml.dom.minidom cloneNode() on a document with an entity: pass the correct arguments to the user data handler of an entity. .. .. bpo: 20239 .. date: 2018-12-09-21-35-49 .. nonce: V4mWBL .. section: Library Allow repeated assignment deletion of :class:`unittest.mock.Mock` attributes. Patch by Pablo Galindo. .. .. bpo: 17185 .. date: 2018-12-09-17-04-15 .. nonce: SfSCJF .. section: Library Set ``__signature__`` on mock for :mod:`inspect` to get signature. Patch by Karthikeyan Singaravelan. .. .. bpo: 35445 .. date: 2018-12-09-14-35-49 .. nonce: LjvtsC .. section: Library Memory errors during creating posix.environ no longer ignored. .. .. bpo: 35415 .. date: 2018-12-06-14-44-21 .. nonce: -HoK3d .. section: Library Validate fileno= argument to socket.socket(). .. .. bpo: 35424 .. date: 2018-12-06-02-02-28 .. nonce: gXxOJU .. section: Library :class:`multiprocessing.Pool` destructor now emits :exc:`ResourceWarning` if the pool is still running. .. .. bpo: 35330 .. date: 2018-12-06-00-43-13 .. nonce: abB4BN .. section: Library When a :class:`Mock` instance was used to wrap an object, if ``side_effect`` is used in one of the mocks of it methods, don't call the original implementation and return the result of using the side effect the same way that it is done with return_value. .. .. bpo: 35346 .. date: 2018-12-05-22-52-21 .. nonce: Okm9-S .. section: Library Drop Mac OS 9 and Rhapsody support from the :mod:`platform` module. Rhapsody last release was in 2000. Mac OS 9 last release was in 2001. .. .. bpo: 10496 .. date: 2018-12-05-17-42-49 .. nonce: laV_IE .. section: Library :func:`~distutils.utils.check_environ` of ``distutils.utils`` now catches :exc:`KeyError` on calling :func:`pwd.getpwuid`: don't create the ``HOME`` environment variable in this case. .. .. bpo: 10496 .. date: 2018-12-05-13-37-39 .. nonce: VH-1Lp .. section: Library :func:`posixpath.expanduser` now returns the input *path* unchanged if the ``HOME`` environment variable is not set and the current user has no home directory (if the current user identifier doesn't exist in the password database). This change fix the :mod:`site` module if the current user doesn't exist in the password database (if the user has no home directory). .. .. bpo: 35389 .. date: 2018-12-04-12-46-05 .. nonce: CTZ9iA .. section: Library :func:`platform.libc_ver` now uses ``os.confstr('CS_GNU_LIBC_VERSION')`` if available and the *executable* parameter is not set. .. .. bpo: 35394 .. date: 2018-12-04-12-17-08 .. nonce: fuTVDk .. section: Library Add empty slots to asyncio abstract protocols. .. .. bpo: 35310 .. date: 2018-12-03-19-45-00 .. nonce: 9k28gR .. section: Library Fix a bug in :func:`select.select` where, in some cases, the file descriptor sequences were returned unmodified after a signal interruption, even though the file descriptors might not be ready yet. :func:`select.select` will now always return empty lists if a timeout has occurred. Patch by Oran Avraham. .. .. bpo: 35380 .. date: 2018-12-03-14-41-11 .. nonce: SdRF9l .. section: Library Enable TCP_NODELAY on Windows for proactor asyncio event loop. .. .. bpo: 35341 .. date: 2018-12-02-13-50-52 .. nonce: 32E8T_ .. section: Library Add generic version of ``collections.OrderedDict`` to the ``typing`` module. Patch by Ismo Toijala. .. .. bpo: 35371 .. date: 2018-12-01-13-44-12 .. nonce: fTAwlX .. section: Library Fixed possible crash in ``os.utime()`` on Windows when pass incorrect arguments. .. .. bpo: 35346 .. date: 2018-11-29-12-42-13 .. nonce: OmTY5c .. section: Library :func:`platform.uname` now redirects ``stderr`` to :data:`os.devnull` when running external programs like ``cmd /c ver``. .. .. bpo: 35066 .. date: 2018-11-29-09-38-40 .. nonce: Nwej2s .. section: Library Previously, calling the strftime() method on a datetime object with a trailing '%' in the format string would result in an exception. However, this only occurred when the datetime C module was being used; the python implementation did not match this behavior. Datetime is now PEP-399 compliant, and will not throw an exception on a trailing '%'. .. .. bpo: 35345 .. date: 2018-11-29-00-55-33 .. nonce: vepCSJ .. section: Library The function ``platform.popen`` has been removed, it was deprecated since Python 3.3: use :func:`os.popen` instead. .. .. bpo: 35344 .. date: 2018-11-29-00-23-25 .. nonce: 4QOPJQ .. section: Library On macOS, :func:`platform.platform` now uses :func:`platform.mac_ver`, if it returns a non-empty release string, to get the macOS version rather than the darwin version. .. .. bpo: 35312 .. date: 2018-11-25-20-05-33 .. nonce: wbw0zO .. section: Library Make ``lib2to3.pgen2.parse.ParseError`` round-trip pickle-able. Patch by Anthony Sottile. .. .. bpo: 35308 .. date: 2018-11-24-10-33-42 .. nonce: 9--2iy .. section: Library Fix regression in ``webbrowser`` where default browsers may be preferred over browsers in the ``BROWSER`` environment variable. .. .. bpo: 24746 .. date: 2018-11-22-15-22-56 .. nonce: eSLKBE .. section: Library Avoid stripping trailing whitespace in doctest fancy diff. Original patch by R. David Murray & Jairo Trad. Enhanced by Sanyam Khurana. .. .. bpo: 28604 .. date: 2018-11-20-13-34-01 .. nonce: iiih5h .. section: Library :func:`locale.localeconv` now sets temporarily the ``LC_CTYPE`` locale to the ``LC_MONETARY`` locale if the two locales are different and monetary strings are non-ASCII. This temporary change affects other threads. .. .. bpo: 35277 .. date: 2018-11-19-07-22-04 .. nonce: dsD-2E .. section: Library Update ensurepip to install pip 18.1 and setuptools 40.6.2. .. .. bpo: 24209 .. date: 2018-11-18-18-44-40 .. nonce: p3YWOf .. section: Library Adds IPv6 support when invoking http.server directly. .. .. bpo: 35226 .. date: 2018-11-15-07-14-32 .. nonce: wJPEEe .. section: Library Recursively check arguments when testing for equality of :class:`unittest.mock.call` objects and add note that tracking of parameters used to create ancestors of mocks in ``mock_calls`` is not possible. .. .. bpo: 29564 .. date: 2018-11-12-17-40-04 .. nonce: SFNBT5 .. section: Library The warnings module now suggests to enable tracemalloc if the source is specified, the tracemalloc module is available, but tracemalloc is not tracing memory allocations. .. .. bpo: 35189 .. date: 2018-11-09-13-35-36 .. nonce: gog-sl .. section: Library Modify the following fnctl function to retry if interrupted by a signal (EINTR): flock, lockf, fnctl .. .. bpo: 30064 .. date: 2018-11-09-01-18-51 .. nonce: IF5mH6 .. section: Library Use add_done_callback() in sock_* asyncio API to unsubscribe reader/writer early on calcellation. .. .. bpo: 35186 .. date: 2018-11-08-14-22-29 .. nonce: 5m22Mj .. section: Library Removed the "built with" comment added when ``setup.py upload`` is used with either ``bdist_rpm`` or ``bdist_dumb``. .. .. bpo: 35152 .. date: 2018-11-03-10-12-04 .. nonce: xpqskp .. section: Library Allow sending more than 2 GB at once on a multiprocessing connection on non-Windows systems. .. .. bpo: 35062 .. date: 2018-10-29-23-09-24 .. nonce: dQS1ng .. section: Library Fix incorrect parsing of :class:`_io.IncrementalNewlineDecoder`'s *translate* argument. .. .. bpo: 35065 .. date: 2018-10-29-10-18-31 .. nonce: CulMN8 .. section: Library Remove ``StreamReaderProtocol._untrack_reader``. The call to ``_untrack_reader`` is currently performed too soon, causing the protocol to forget about the reader before ``connection_lost`` can run and feed the EOF to the reader. .. .. bpo: 34160 .. date: 2018-10-27-21-11-42 .. nonce: UzyPZf .. section: Library ElementTree and minidom now preserve the attribute order specified by the user. .. .. bpo: 35079 .. date: 2018-10-26-22-53-16 .. nonce: Tm5jvF .. section: Library Improve difflib.SequenceManager.get_matching_blocks doc by adding 'non-overlapping' and changing '!=' to '<'. .. .. bpo: 33710 .. date: 2018-10-26-21-12-55 .. nonce: Q5oXc6 .. section: Library Deprecated ``l*gettext()`` functions and methods in the :mod:`gettext` module. They return encoded bytes instead of Unicode strings and are artifacts from Python 2 times. Also deprecated functions and methods related to setting the charset for ``l*gettext()`` functions and methods. .. .. bpo: 35017 .. date: 2018-10-26-00-11-21 .. nonce: 6Ez4Cv .. section: Library :meth:`socketserver.BaseServer.serve_forever` now exits immediately if it's :meth:`~socketserver.BaseServer.shutdown` method is called while it is polling for new events. .. .. bpo: 35024 .. date: 2018-10-25-15-43-32 .. nonce: ltSrtr .. section: Library ``importlib`` no longer logs ``wrote `` redundantly after ``(created|could not create) `` is already logged. Patch by Quentin Agren. .. .. bpo: 35047 .. date: 2018-10-25-09-59-00 .. nonce: abbaa .. section: Library ``unittest.mock`` now includes mock calls in exception messages if ``assert_not_called``, ``assert_called_once``, or ``assert_called_once_with`` fails. Patch by Petter Strandmark. .. .. bpo: 31047 .. date: 2018-10-25-09-37-03 .. nonce: kBbX8r .. section: Library Fix ``ntpath.abspath`` regression where it didn't remove a trailing separator on Windows. Patch by Tim Graham. .. .. bpo: 35053 .. date: 2018-10-23-18-58-12 .. nonce: G82qwh .. section: Library tracemalloc now tries to update the traceback when an object is reused from a "free list" (optimization for faster object creation, used by the builtin list type for example). .. .. bpo: 31553 .. date: 2018-10-23-14-46-47 .. nonce: JxRkAW .. section: Library Add the --json-lines option to json.tool. Patch by hongweipeng. .. .. bpo: 34794 .. date: 2018-10-21-14-53-19 .. nonce: yt3R4- .. section: Library Fixed a leak in Tkinter when pass the Python wrapper around Tcl_Obj back to Tcl/Tk. .. .. bpo: 34909 .. date: 2018-10-20-00-29-43 .. nonce: Ew_8DC .. section: Library Enum: fix grandchildren subclassing when parent mixed with concrete data types. .. .. bpo: 35022 .. date: 2018-10-18-17-57-28 .. nonce: KeEF4T .. section: Library :class:`unittest.mock.MagicMock` now supports the ``__fspath__`` method (from :class:`os.PathLike`). .. .. bpo: 35008 .. date: 2018-10-17-11-54-04 .. nonce: dotef_ .. section: Library Fixed references leaks when call the ``__setstate__()`` method of :class:`xml.etree.ElementTree.Element` in the C implementation for already initialized element. .. .. bpo: 23420 .. date: 2018-10-17-11-00-00 .. nonce: Lq74Uu .. section: Library Verify the value for the parameter '-s' of the cProfile CLI. Patch by Robert Kuska .. .. bpo: 33947 .. date: 2018-10-17-02-15-23 .. nonce: SRuq3T .. section: Library dataclasses now handle recursive reprs without raising RecursionError. .. .. bpo: 34890 .. date: 2018-10-15-23-10-41 .. nonce: 77E770 .. section: Library Make :func:`inspect.iscoroutinefunction`, :func:`inspect.isgeneratorfunction` and :func:`inspect.isasyncgenfunction` work with :func:`functools.partial`. Patch by Pablo Galindo. .. .. bpo: 34521 .. date: 2018-10-13-19-15-23 .. nonce: YPaiTK .. section: Library Use :func:`socket.CMSG_SPACE` to calculate ancillary data size instead of :func:`socket.CMSG_LEN` in :func:`multiprocessing.reduction.recvfds` as :rfc:`3542` requires the use of the former for portable applications. .. .. bpo: 31522 .. date: 2018-10-13-18-16-20 .. nonce: rWBb43 .. section: Library The ``mailbox.mbox.get_string`` function *from_* parameter can now successfully be set to a non-default value. .. .. bpo: 34970 .. date: 2018-10-13-11-14-13 .. nonce: SrJTY7 .. section: Library Protect tasks weak set manipulation in ``asyncio.all_tasks()`` .. .. bpo: 34969 .. date: 2018-10-13-07-46-50 .. nonce: Mfnhjb .. section: Library gzip: Add --fast, --best on the gzip CLI, these parameters will be used for the fast compression method (quick) or the best method compress (slower, but smaller file). Also, change the default compression level to 6 (tradeoff). .. .. bpo: 16965 .. date: 2018-10-12-20-30-42 .. nonce: xo5LAr .. section: Library The 2to3 ``execfile`` fixer now opens the file with mode ``'rb'``. Patch by Zackery Spytz. .. .. bpo: 34966 .. date: 2018-10-12-18-57-52 .. nonce: WZeBHO .. section: Library :mod:`pydoc` now supports aliases not only to methods defined in the end class, but also to inherited methods. The docstring is not duplicated for aliases. .. .. bpo: 34926 .. date: 2018-10-10-00-22-57 .. nonce: CA0rqd .. section: Library :meth:`mimetypes.MimeTypes.guess_type` now accepts :term:`path-like object` in addition to url strings. Patch by Mayank Asthana. .. .. bpo: 23831 .. date: 2018-10-09-15-44-04 .. nonce: 2CL7lL .. section: Library Add ``moveto()`` method to the ``tkinter.Canvas`` widget. Patch by Juliette Monsel. .. .. bpo: 34941 .. date: 2018-10-09-14-42-16 .. nonce: 1Q5QKv .. section: Library Methods ``find()``, ``findtext()`` and ``findall()`` of the ``Element`` class in the :mod:`xml.etree.ElementTree` module are now able to find children which are instances of ``Element`` subclasses. .. .. bpo: 32680 .. date: 2018-10-09-14-25-36 .. nonce: z2FbOp .. section: Library :class:`smtplib.SMTP` objects now always have a ``sock`` attribute present .. .. bpo: 34769 .. date: 2018-10-09-11-01-16 .. nonce: cSkkZt .. section: Library Fix for async generators not finalizing when event loop is in debug mode and garbage collector runs in another thread. .. .. bpo: 34936 .. date: 2018-10-08-21-05-11 .. nonce: 3tRqdq .. section: Library Fix ``TclError`` in ``tkinter.Spinbox.selection_element()``. Patch by Juliette Monsel. .. .. bpo: 34829 .. date: 2018-10-08-16-04-36 .. nonce: B7v7D0 .. section: Library Add methods ``selection_from``, ``selection_range``, ``selection_present`` and ``selection_to`` to the ``tkinter.Spinbox`` for consistency with the ``tkinter.Entry`` widget. Patch by Juliette Monsel. .. .. bpo: 34911 .. date: 2018-10-08-15-22-02 .. nonce: hCy0Fv .. section: Library Added *secure_protocols* argument to *http.cookiejar.DefaultCookiePolicy* to allow for tweaking of protocols and also to add support by default for *wss*, the secure websocket protocol. .. .. bpo: 34922 .. date: 2018-10-07-21-18-52 .. nonce: 37IdsA .. section: Library Fixed integer overflow in the :meth:`~hashlib.shake.digest()` and :meth:`~hashlib.shake.hexdigest()` methods for the SHAKE algorithm in the :mod:`hashlib` module. .. .. bpo: 34925 .. date: 2018-10-07-20-37-02 .. nonce: KlkZ-Y .. section: Library 25% speedup in argument parsing for the functions in the bisect module. .. .. bpo: 34900 .. date: 2018-10-05-05-55-53 .. nonce: 8RNiFu .. section: Library Fixed :meth:`unittest.TestCase.debug` when used to call test methods with subtests. Patch by Bruno Oliveira. .. .. bpo: 34844 .. date: 2018-10-04-20-44-45 .. nonce: Hnuxav .. section: Library logging.Formatter enhancement - Ensure styles and fmt matches in logging.Formatter - Added validate method in each format style class: StrFormatStyle, PercentStyle, StringTemplateStyle. - This method is called in the constructor of logging.Formatter class - Also re-raise the KeyError in the format method of each style class, so it would a bit clear that it's an error with the invalid format fields. .. .. bpo: 34897 .. date: 2018-10-04-20-25-35 .. nonce: rNE2Cy .. section: Library Adjust test.support.missing_compiler_executable check so that a nominal command name of "" is ignored. Patch by Michael Felt. .. .. bpo: 34871 .. date: 2018-10-04-18-46-54 .. nonce: t3X-dB .. section: Library Fix inspect module polluted ``sys.modules`` when parsing ``__text_signature__`` of callable. .. .. bpo: 34898 .. date: 2018-10-04-17-23-43 .. nonce: Wo2PoJ .. section: Library Add ``mtime`` argument to ``gzip.compress`` for reproducible output. Patch by Guo Ci Teo. .. .. bpo: 28441 .. date: 2018-10-04-15-53-14 .. nonce: 2sQENe .. section: Library On Cygwin and MinGW, ensure that ``sys.executable`` always includes the full filename in the path, including the ``.exe`` suffix (unless it is a symbolic link). .. .. bpo: 34866 .. date: 2018-10-03-11-07-28 .. nonce: ML6KpJ .. section: Library Adding ``max_num_fields`` to ``cgi.FieldStorage`` to make DOS attacks harder by limiting the number of ``MiniFieldStorage`` objects created by ``FieldStorage``. .. .. bpo: 34711 .. date: 2018-10-03-09-25-02 .. nonce: HeOmKR .. section: Library http.server ensures it reports HTTPStatus.NOT_FOUND when the local path ends with "/" and is not a directory, even if the underlying OS (e.g. AIX) accepts such paths as a valid file reference. Patch by Michael Felt. .. .. bpo: 34872 .. date: 2018-10-02-19-36-34 .. nonce: yWZRhI .. section: Library Fix self-cancellation in C implementation of asyncio.Task .. .. bpo: 34849 .. date: 2018-09-30-08-08-14 .. nonce: NXK9Ff .. section: Library Don't log waiting for ``selector.select`` in asyncio loop iteration. The waiting is pretty normal for any asyncio program, logging its time just adds a noise to logs without any useful information provided. .. .. bpo: 34022 .. date: 2018-09-27-13-14-15 .. nonce: E2cl0r .. section: Library The :envvar:`SOURCE_DATE_EPOCH` environment variable no longer overrides the value of the *invalidation_mode* argument to :func:`py_compile.compile`, and determines its default value instead. .. .. bpo: 34819 .. date: 2018-09-27-09-45-00 .. nonce: 9ZaFyO .. section: Library Use a monotonic clock to compute timeouts in :meth:`Executor.map` and :func:`as_completed`, in order to prevent timeouts from deviating when the system clock is adjusted. .. .. bpo: 34758 .. date: 2018-09-26-14-09-34 .. nonce: bRBfAi .. section: Library Add .wasm -> application/wasm to list of recognized file types and content type headers .. .. bpo: 34789 .. date: 2018-09-25-15-48-50 .. nonce: rPOEj5 .. section: Library :func:`xml.sax.make_parser` now accepts any iterable as its *parser_list* argument. Patch by Andrés Delfino. .. .. bpo: 34334 .. date: 2018-09-25-08-42-34 .. nonce: rSPBW9 .. section: Library In :class:`QueueHandler`, clear ``exc_text`` from :class:`LogRecord` to prevent traceback from being written twice. .. .. bpo: 34687 .. date: 2018-09-24-17-14-57 .. nonce: Fku_8S .. section: Library On Windows, asyncio now uses ProactorEventLoop, instead of SelectorEventLoop, by default. .. .. bpo: 5950 .. date: 2018-09-24-14-21-58 .. nonce: xH0ekQ .. section: Library Support reading zip files with archive comments in :mod:`zipimport`. .. .. bpo: 32892 .. date: 2018-09-20-17-35-05 .. nonce: TOUBdg .. section: Library The parser now represents all constants as :class:`ast.Constant` instead of using specific constant AST types (``Num``, ``Str``, ``Bytes``, ``NameConstant`` and ``Ellipsis``). These classes are considered deprecated and will be removed in future Python versions. .. .. bpo: 34728 .. date: 2018-09-20-16-55-43 .. nonce: CUE8LU .. section: Library Add deprecation warning when ``loop`` is used in methods: ``asyncio.sleep``, ``asyncio.wait`` and ``asyncio.wait_for``. .. .. bpo: 34738 .. date: 2018-09-19-16-51-04 .. nonce: Pr3-iG .. section: Library ZIP files created by ``distutils`` will now include entries for directories. .. .. bpo: 34659 .. date: 2018-09-16-17-04-16 .. nonce: CWemzH .. section: Library Add an optional *initial* argument to itertools.accumulate(). .. .. bpo: 29577 .. date: 2018-09-14-20-00-47 .. nonce: RzwKFD .. section: Library Support multiple mixin classes when creating Enums. .. .. bpo: 34670 .. date: 2018-09-14-14-29-45 .. nonce: 17XwGB .. section: Library Add SSLContext.post_handshake_auth and SSLSocket.verify_client_post_handshake for TLS 1.3's post handshake authentication feature. .. .. bpo: 32718 .. date: 2018-09-14-12-38-49 .. nonce: ICYQbt .. section: Library The Activate.ps1 script from venv works with PowerShell Core 6.1 and is now available under all operating systems. .. .. bpo: 31177 .. date: 2018-09-14-10-38-18 .. nonce: Sv91TN .. section: Library Fix bug that prevented using :meth:`reset_mock ` on mock instances with deleted attributes .. .. bpo: 34672 .. date: 2018-09-13-21-04-23 .. nonce: BYuKKS .. section: Library Add a workaround, so the ``'Z'`` :func:`time.strftime` specifier on the musl C library can work in some cases. .. .. bpo: 34666 .. date: 2018-09-13-11-49-52 .. nonce: 3uLtWv .. section: Library Implement ``asyncio.StreamWriter.awrite`` and ``asyncio.StreamWriter.aclose()`` coroutines. Methods are needed for providing a consistent stream API with control flow switched on by default. .. .. bpo: 6721 .. date: 2018-09-13-10-09-19 .. nonce: ZUL_F3 .. section: Library Acquire the logging module's commonly used internal locks while fork()ing to avoid deadlocks in the child process. .. .. bpo: 34658 .. date: 2018-09-13-03-59-43 .. nonce: ykZ-ia .. section: Library Fix a rare interpreter unhandled exception state SystemError only seen when using subprocess with a preexec_fn while an after_parent handler has been registered with os.register_at_fork and the fork system call fails. .. .. bpo: 34652 .. date: 2018-09-12-14-46-51 .. nonce: Rt1m1b .. section: Library Ensure :func:`os.lchmod` is never defined on Linux. .. .. bpo: 34638 .. date: 2018-09-12-10-33-44 .. nonce: xaeZX5 .. section: Library Store a weak reference to stream reader to break strong references loop between reader and protocol. It allows to detect and close the socket if the stream is deleted (garbage collected) without ``close()`` call. .. .. bpo: 34536 .. date: 2018-09-11-15-49-09 .. nonce: 3IPIH5 .. section: Library ``Enum._missing_``: raise ``ValueError`` if None returned and ``TypeError`` if non-member is returned. .. .. bpo: 34636 .. date: 2018-09-11-15-04-05 .. nonce: capCmt .. section: Library Speed up re scanning of many non-matching characters for \s \w and \d within bytes objects. (microoptimization) .. .. bpo: 24412 .. date: 2018-09-11-10-51-16 .. nonce: i-F_E5 .. section: Library Add :func:`~unittest.addModuleCleanup()` and :meth:`~unittest.TestCase.addClassCleanup()` to unittest to support cleanups for :func:`~unittest.setUpModule()` and :meth:`~unittest.TestCase.setUpClass()`. Patch by Lisa Roach. .. .. bpo: 34630 .. date: 2018-09-11-10-00-53 .. nonce: YbqUS6 .. section: Library Don't log SSL certificate errors in asyncio code (connection error logging is skipped already). .. .. bpo: 32490 .. date: 2018-09-11-01-25-35 .. nonce: ROIDO1 .. section: Library Prevent filename duplication in :mod:`subprocess` exception messages. Patch by Zackery Spytz. .. .. bpo: 34363 .. date: 2018-09-10-21-09-34 .. nonce: YuSb0T .. section: Library dataclasses.asdict() and .astuple() now handle namedtuples correctly. .. .. bpo: 34625 .. date: 2018-09-10-17-46-51 .. nonce: D2YfDz .. section: Library Update vendorized expat library version to 2.2.6. .. .. bpo: 32270 .. date: 2018-09-10-14-15-53 .. nonce: wSJjuD .. section: Library The subprocess module no longer mistakenly closes redirected fds even when they were in pass_fds when outside of the default {0, 1, 2} set. .. .. bpo: 34622 .. date: 2018-09-10-13-04-40 .. nonce: tpv_rN .. section: Library Create a dedicated ``asyncio.CancelledError``, ``asyncio.InvalidStateError`` and ``asyncio.TimeoutError`` exception classes. Inherit them from corresponding exceptions from ``concurrent.futures`` package. Extract ``asyncio`` exceptions into a separate file. .. .. bpo: 34610 .. date: 2018-09-08-12-57-07 .. nonce: wmoP5j .. section: Library Fixed iterator of :class:`multiprocessing.managers.DictProxy`. .. .. bpo: 34421 .. date: 2018-09-07-10-57-00 .. nonce: AKJISD .. section: Library Fix distutils logging for non-ASCII strings. This caused installation issues on Windows. .. .. bpo: 34604 .. date: 2018-09-07-10-16-34 .. nonce: xL7-kG .. section: Library Fix possible mojibake in the error message of ``pwd.getpwnam`` and ``grp.getgrnam`` using string representation because of invisible characters or trailing whitespaces. Patch by William Grzybowski. .. .. bpo: 30977 .. date: 2018-09-06-10-07-46 .. nonce: bP661V .. section: Library Make uuid.UUID use ``__slots__`` to reduce its memory footprint. Based on original patch by Wouter Bolsterlee. .. .. bpo: 34574 .. date: 2018-09-04-09-32-54 .. nonce: X4RwYI .. section: Library OrderedDict iterators are not exhausted during pickling anymore. Patch by Sergey Fedoseev. .. .. bpo: 8110 .. date: 2018-09-03-23-54-35 .. nonce: FExWI_ .. section: Library Refactored :mod:`subprocess` to check for Windows-specific modules rather than ``sys.platform == 'win32'``. .. .. bpo: 34530 .. date: 2018-09-03-23-23-32 .. nonce: h_Xsu7 .. section: Library ``distutils.spawn.find_executable()`` now falls back on :data:`os.defpath` if the ``PATH`` environment variable is not set. .. .. bpo: 34563 .. date: 2018-09-01-20-43-10 .. nonce: 7NQK7B .. section: Library On Windows, fix multiprocessing.Connection for very large read: fix _winapi.PeekNamedPipe() and _winapi.ReadFile() for read larger than INT_MAX (usually ``2**31-1``). .. .. bpo: 34558 .. date: 2018-08-31-19-26-55 .. nonce: MHv582 .. section: Library Correct typo in Lib/ctypes/_aix.py .. .. bpo: 34282 .. date: 2018-08-31-06-28-03 .. nonce: ztyXH8 .. section: Library Move ``Enum._convert`` to ``EnumMeta._convert_`` and fix enum members getting shadowed by parent attributes. .. .. bpo: 22872 .. date: 2018-08-30-14-44-11 .. nonce: NhIaZ9 .. section: Library When the queue is closed, :exc:`ValueError` is now raised by :meth:`multiprocessing.Queue.put` and :meth:`multiprocessing.Queue.get` instead of :exc:`AssertionError` and :exc:`OSError`, respectively. Patch by Zackery Spytz. .. .. bpo: 34515 .. date: 2018-08-27-16-01-22 .. nonce: S0Irst .. section: Library Fix parsing non-ASCII identifiers in :mod:`!lib2to3.pgen2.tokenize` (:pep:`3131`). .. .. bpo: 13312 .. date: 2018-08-24-17-31-27 .. nonce: 6hA5La .. section: Library Avoids a possible integer underflow (undefined behavior) in the time module's year handling code when passed a very low negative year value. .. .. bpo: 34472 .. date: 2018-08-23-09-25-08 .. nonce: cGyYrO .. section: Library Improved compatibility for streamed files in :mod:`zipfile`. Previously an optional signature was not being written and certain ZIP applications were not supported. Patch by Silas Sewell. .. .. bpo: 34454 .. date: 2018-08-22-21-59-08 .. nonce: z7uG4b .. section: Library Fix the .fromisoformat() methods of datetime types crashing when given unicode with non-UTF-8-encodable code points. Specifically, datetime.fromisoformat() now accepts surrogate unicode code points used as the separator. Report and tests by Alexey Izbyshev, patch by Paul Ganssle. .. .. bpo: 6700 .. date: 2018-08-22-17-43-52 .. nonce: hp7C4B .. section: Library Fix inspect.getsourcelines for module level frames/tracebacks. Patch by Vladimir Matveev. .. .. bpo: 34171 .. date: 2018-08-21-00-29-01 .. nonce: 6LkWav .. section: Library Running the :mod:`trace` module no longer creates the ``trace.cover`` file. .. .. bpo: 34441 .. date: 2018-08-20-16-48-32 .. nonce: _zx9lU .. section: Library Fix crash when an ``ABC``-derived class with invalid ``__subclasses__`` is passed as the second argument to :func:`issubclass()`. Patch by Alexey Izbyshev. .. .. bpo: 34427 .. date: 2018-08-20-13-53-10 .. nonce: tMRQjl .. section: Library Fix infinite loop in ``a.extend(a)`` for ``MutableSequence`` subclasses. .. .. bpo: 34412 .. date: 2018-08-16-19-07-05 .. nonce: NF5Jm2 .. section: Library Make :func:`signal.strsignal` work on HP-UX. Patch by Michael Osipov. .. .. bpo: 20849 .. date: 2018-08-16-16-47-15 .. nonce: YWJECC .. section: Library shutil.copytree now accepts a new ``dirs_exist_ok`` keyword argument. Patch by Josh Bronson. .. .. bpo: 31715 .. date: 2018-08-15-16-22-30 .. nonce: Iw8jS8 .. section: Library Associate ``.mjs`` file extension with ``application/javascript`` MIME Type. .. .. bpo: 34384 .. date: 2018-08-12-08-43-21 .. nonce: yjofCv .. section: Library :func:`os.readlink` now accepts :term:`path-like ` and :class:`bytes` objects on Windows. .. .. bpo: 22602 .. date: 2018-08-12-00-14-54 .. nonce: ybG9K8 .. section: Library The UTF-7 decoder now raises :exc:`UnicodeDecodeError` for ill-formed sequences starting with "+" (as specified in RFC 2152). Patch by Zackery Spytz. .. .. bpo: 2122 .. date: 2018-08-06-21-47-03 .. nonce: GWdmrm .. section: Library The :meth:`mmap.flush() ` method now returns ``None`` on success, raises an exception on error under all platforms. .. .. bpo: 34341 .. date: 2018-08-06-11-01-18 .. nonce: E0b9p2 .. section: Library Appending to the ZIP archive with the ZIP64 extension no longer grows the size of extra fields of existing entries. .. .. bpo: 34333 .. date: 2018-08-04-00-06-28 .. nonce: 5NHG93 .. section: Library Fix %-formatting in :meth:`pathlib.PurePath.with_suffix` when formatting an error message. .. .. bpo: 18540 .. date: 2018-08-02-21-28-38 .. nonce: AryoYY .. section: Library The :class:`imaplib.IMAP4` and :class:`imaplib.IMAP4_SSL` classes now resolve to the local host IP correctly when the default value of *host* parameter (``''``) is used. .. .. bpo: 26502 .. date: 2018-08-02-20-39-32 .. nonce: eGXr_k .. section: Library Implement ``traceback.FrameSummary.__len__()`` method to preserve compatibility with the old tuple API. .. .. bpo: 34318 .. date: 2018-08-02-14-43-42 .. nonce: GneiXs .. section: Library :func:`~unittest.TestCase.assertRaises`, :func:`~unittest.TestCase.assertRaisesRegex`, :func:`~unittest.TestCase.assertWarns` and :func:`~unittest.TestCase.assertWarnsRegex` no longer success if the passed callable is None. They no longer ignore unknown keyword arguments in the context manager mode. A DeprecationWarning was raised in these cases since Python 3.5. .. .. bpo: 9372 .. date: 2018-08-01-21-26-17 .. nonce: V8Ou3K .. section: Library Deprecate :meth:`~object.__getitem__` methods of :class:`xml.dom.pulldom.DOMEventStream`, :class:`wsgiref.util.FileWrapper` and :class:`fileinput.FileInput`. .. .. bpo: 33613 .. date: 2018-07-31-23-33-06 .. nonce: Cdnt0i .. section: Library Fix a race condition in ``multiprocessing.semaphore_tracker`` when the tracker receives SIGINT before it can register signal handlers for ignoring it. .. .. bpo: 34248 .. date: 2018-07-31-23-00-09 .. nonce: 5U6wwc .. section: Library Report filename in the exception raised when the database file cannot be opened by :func:`dbm.gnu.open` and :func:`dbm.ndbm.open` due to OS-related error. Patch by Zsolt Cserna. .. .. bpo: 33089 .. date: 2018-07-29-21-53-15 .. nonce: hxbp3g .. section: Library Add math.dist() to compute the Euclidean distance between two points. .. .. bpo: 34246 .. date: 2018-07-29-15-25-15 .. nonce: xiKq-Q .. section: Library :meth:`smtplib.SMTP.send_message` no longer modifies the content of the *mail_options* argument. Patch by Pablo S. Blum de Aguiar. .. .. bpo: 31047 .. date: 2018-07-29-14-12-23 .. nonce: FSarLs .. section: Library Fix ``ntpath.abspath`` for invalid paths on windows. Patch by Franz Woellert. .. .. bpo: 32321 .. date: 2018-07-29-13-50-32 .. nonce: hDoNKC .. section: Library Add pure Python fallback for functools.reduce. Patch by Robert Wright. .. .. bpo: 34270 .. date: 2018-07-29-11-32-56 .. nonce: aL6P-3 .. section: Library The default asyncio task class now always has a name which can be get or set using two new methods (:meth:`~asyncio.Task.get_name()` and :meth:`~asyncio.Task.set_name`) and is visible in the :func:`repr` output. An initial name can also be set using the new ``name`` keyword argument to :func:`asyncio.create_task` or the :meth:`~asyncio.AbstractEventLoop.create_task` method of the event loop. If no initial name is set, the default Task implementation generates a name like ``Task-1`` using a monotonic counter. .. .. bpo: 34263 .. date: 2018-07-28-17-00-36 .. nonce: zUfRsu .. section: Library asyncio's event loop will not pass timeouts longer than one day to epoll/select etc. .. .. bpo: 34035 .. date: 2018-07-28-15-00-31 .. nonce: 75nW0H .. section: Library Fix several AttributeError in zipfile seek() methods. Patch by Mickaël Schoentgen. .. .. bpo: 32215 .. date: 2018-07-28-12-08-53 .. nonce: EU68SY .. section: Library Fix performance regression in :mod:`sqlite3` when a DML statement appeared in a different line than the rest of the SQL query. .. .. bpo: 34075 .. date: 2018-07-28-11-49-21 .. nonce: 9u1bO- .. section: Library Deprecate passing non-ThreadPoolExecutor instances to :meth:`AbstractEventLoop.set_default_executor`. .. .. bpo: 34251 .. date: 2018-07-28-11-47-10 .. nonce: q3elQ6 .. section: Library Restore ``msilib.Win64`` to preserve backwards compatibility since it's already used by ``distutils``' ``bdist_msi`` command. .. .. bpo: 19891 .. date: 2018-07-26-08-45-49 .. nonce: Y-3IiB .. section: Library Ignore errors caused by missing / non-writable homedir while writing history during exit of an interactive session. Patch by Anthony Sottile. .. .. bpo: 33089 .. date: 2018-07-25-22-38-54 .. nonce: C3CB7e .. section: Library Enhanced math.hypot() to support more than two dimensions. .. .. bpo: 34228 .. date: 2018-07-25-19-02-39 .. nonce: 0Ibztw .. section: Library tracemalloc: PYTHONTRACEMALLOC=0 environment variable and -X tracemalloc=0 command line option are now allowed to disable explicitly tracemalloc at startup. .. .. bpo: 13041 .. date: 2018-07-25-12-08-48 .. nonce: lNmgDz .. section: Library Use :func:`shutil.get_terminal_size` to calculate the terminal width correctly in the ``argparse.HelpFormatter`` class. Initial patch by Zbyszek Jędrzejewski-Szmek. .. .. bpo: 34213 .. date: 2018-07-25-00-40-14 .. nonce: O15MgP .. section: Library Allow frozen dataclasses to have a field named "object". Previously this conflicted with an internal use of "object". .. .. bpo: 34052 .. date: 2018-07-24-16-37-40 .. nonce: VbbFAE .. section: Library :meth:`sqlite3.Connection.create_aggregate`, :meth:`sqlite3.Connection.create_function`, :meth:`sqlite3.Connection.set_authorizer`, :meth:`sqlite3.Connection.set_progress_handler` methods raises TypeError when unhashable objects are passed as callable. These methods now don't pass such objects to SQLite API. Previous behavior could lead to segfaults. Patch by Sergey Fedoseev. .. .. bpo: 34197 .. date: 2018-07-23-14-12-28 .. nonce: 7yFSP5 .. section: Library Attributes *skipinitialspace*, *doublequote* and *strict* of the *dialect* attribute of the :mod:`csv` reader are now :class:`bool` instances instead of integers 0 or 1. .. .. bpo: 32788 .. date: 2018-07-23-12-20-02 .. nonce: R2jSiK .. section: Library Errors other than :exc:`TypeError` raised in methods ``__adapt__()`` and ``__conform__()`` in the :mod:`sqlite3` module are now propagated to the user. .. .. bpo: 21446 .. date: 2018-07-22-09-05-01 .. nonce: w6g7tn .. section: Library The ``reload`` fixer now uses :func:`importlib.reload` instead of deprecated :func:`!imp.reload`. .. .. bpo: 940286 .. date: 2018-07-22-07-59-32 .. nonce: NZTzyc .. section: Library pydoc's ``Helper.showtopic()`` method now prints the cross references of a topic correctly. .. .. bpo: 34164 .. date: 2018-07-20-18-06-00 .. nonce: fNfT-q .. section: Library :func:`base64.b32decode` could raise UnboundLocalError or OverflowError for incorrect padding. Now it always raises :exc:`base64.Error` in these cases. .. .. bpo: 33729 .. date: 2018-07-20-09-11-05 .. nonce: sO6iTb .. section: Library Fixed issues with arguments parsing in :mod:`hashlib`. .. .. bpo: 34097 .. date: 2018-07-13-13-42-10 .. nonce: F5Dk5o .. section: Library ZipFile can zip files older than 1980-01-01 and newer than 2107-12-31 using a new ``strict_timestamps`` parameter at the cost of setting the timestamp to the limit. .. .. bpo: 34108 .. date: 2018-07-13-08-44-52 .. nonce: RjobUC .. section: Library Remove extraneous CR in 2to3 refactor. .. .. bpo: 34070 .. date: 2018-07-11-20-51-20 .. nonce: WpmFAu .. section: Library Make sure to only check if the handle is a tty, when opening a file with ``buffering=-1``. .. .. bpo: 27494 .. date: 2018-07-11-10-03-21 .. nonce: 04OWkW .. section: Library Reverted :issue:`27494`. 2to3 rejects now a trailing comma in generator expressions. .. .. bpo: 33967 .. date: 2018-07-08-18-49-41 .. nonce: lhaAez .. section: Library functools.singledispatch now raises TypeError instead of IndexError when no positional arguments are passed. .. .. bpo: 34041 .. date: 2018-07-06-15-06-32 .. nonce: 0zrKLh .. section: Library Add the parameter *deterministic* to the :meth:`sqlite3.Connection.create_function` method. Patch by Sergey Fedoseev. .. .. bpo: 34056 .. date: 2018-07-05-22-45-46 .. nonce: 86isrU .. section: Library Ensure the loader shim created by ``imp.load_module`` always returns bytes from its ``get_data()`` function. This fixes using ``imp.load_module`` with :pep:`552` hash-based pycs. .. .. bpo: 34054 .. date: 2018-07-05-18-37-05 .. nonce: nWRS6M .. section: Library The multiprocessing module now uses the monotonic clock :func:`time.monotonic` instead of the system clock :func:`time.time` to implement timeout. .. .. bpo: 34043 .. date: 2018-07-04-21-14-35 .. nonce: 0YJNq9 .. section: Library Optimize tarfile uncompress performance about 15% when gzip is used. .. .. bpo: 34044 .. date: 2018-07-04-17-14-26 .. nonce: KWAu4y .. section: Library ``subprocess.Popen`` now copies the *startupinfo* argument to leave it unchanged: it will modify the copy, so that the same ``STARTUPINFO`` object can be used multiple times. .. .. bpo: 34010 .. date: 2018-07-04-07-36-53 .. nonce: VNDkde .. section: Library Fixed a performance regression for reading streams with tarfile. The buffered read should use a list, instead of appending to a bytes object. .. .. bpo: 34019 .. date: 2018-07-02-05-59-11 .. nonce: ZXJIife .. section: Library webbrowser: Correct the arguments passed to Opera Browser when opening a new URL using the ``webbrowser`` module. Patch by Bumsik Kim. .. .. bpo: 34003 .. date: 2018-06-29-13-05-01 .. nonce: Iu831h .. section: Library csv.DictReader now creates dicts instead of OrderedDicts. Patch by Michael Selik. .. .. bpo: 33978 .. date: 2018-06-29-12-23-34 .. nonce: y4csIw .. section: Library Closed existing logging handlers before reconfiguration via fileConfig and dictConfig. Patch by Karthikeyan Singaravelan. .. .. bpo: 14117 .. date: 2018-06-29-00-31-36 .. nonce: 3nvDuR .. section: Library Make minor tweaks to turtledemo. The 'wikipedia' example is now 'rosette', describing what it draws. The 'penrose' print output is reduced. The'1024' output of 'tree' is eliminated. .. .. bpo: 33974 .. date: 2018-06-28-14-56-44 .. nonce: SA8nNP .. section: Library Fixed passing lists and tuples of strings containing special characters ``"``, ``\``, ``{``, ``}`` and ``\n`` as options to :mod:`~tkinter.ttk` widgets. .. .. bpo: 27500 .. date: 2018-06-28-13-00-12 .. nonce: _s1gZ5 .. section: Library Fix getaddrinfo to resolve IPv6 addresses correctly. .. .. bpo: 24567 .. date: 2018-06-27-00-31-30 .. nonce: FuePyY .. section: Library Improve random.choices() to handle subnormal input weights that could occasionally trigger an IndexError. .. .. bpo: 33871 .. date: 2018-06-26-19-03-56 .. nonce: XhlrGU .. section: Library Fixed integer overflow in :func:`os.readv`, :func:`os.writev`, :func:`os.preadv` and :func:`os.pwritev` and in :func:`os.sendfile` with *headers* or *trailers* arguments (on BSD-based OSes and macOS). .. .. bpo: 25007 .. date: 2018-06-26-16-55-59 .. nonce: 6LQWOF .. section: Library Add :func:`copy.copy` and :func:`copy.deepcopy` support to zlib compressors and decompressors. Patch by Zackery Spytz. .. .. bpo: 33929 .. date: 2018-06-26-02-09-18 .. nonce: OcCLah .. section: Library multiprocessing: Fix a race condition in Popen of multiprocessing.popen_spawn_win32. The child process now duplicates the read end of pipe instead of "stealing" it. Previously, the read end of pipe was "stolen" by the child process, but it leaked a handle if the child process had been terminated before it could steal the handle from the parent process. .. .. bpo: 33899 .. date: 2018-06-24-01-57-14 .. nonce: IaOcAr .. section: Library Tokenize module now implicitly emits a NEWLINE when provided with input that does not have a trailing new line. This behavior now matches what the C tokenizer does internally. Contributed by Ammar Askar. .. .. bpo: 33897 .. date: 2018-06-23-18-09-28 .. nonce: Hu0yvt .. section: Library Added a 'force' keyword argument to logging.basicConfig(). .. .. bpo: 33695 .. date: 2018-06-23-12-47-37 .. nonce: seRTxh .. section: Library :func:`shutil.copytree` uses :func:`os.scandir` function and all copy functions depending from it use cached :func:`os.stat` values. The speedup for copying a directory with 8000 files is around +9% on Linux, +20% on Windows and + 30% on a Windows SMB share. Also the number of :func:`os.stat` syscalls is reduced by 38% making :func:`shutil.copytree` especially faster on network filesystems. (Contributed by Giampaolo Rodola' in :issue:`33695`.) .. .. bpo: 33916 .. date: 2018-06-21-11-35-47 .. nonce: cZgPCD .. section: Library bz2 and lzma: When Decompressor.__init__() is called twice, free the old lock to not leak memory. .. .. bpo: 32568 .. date: 2018-06-21-09-33-02 .. nonce: f_meGY .. section: Library Make select.epoll() and its documentation consistent regarding *sizehint* and *flags*. .. .. bpo: 33833 .. date: 2018-06-17-11-46-20 .. nonce: RnEqvM .. section: Library Fixed bug in asyncio where ProactorSocketTransport logs AssertionError if force closed during write. .. .. bpo: 33663 .. date: 2018-06-17-10-48-03 .. nonce: sUuGmq .. section: Library Convert content length to string before putting to header. .. .. bpo: 33721 .. date: 2018-06-14-17-53-30 .. nonce: 8i9_9A .. section: Library :mod:`os.path` functions that return a boolean result like :func:`~os.path.exists`, :func:`~os.path.lexists`, :func:`~os.path.isdir`, :func:`~os.path.isfile`, :func:`~os.path.islink`, and :func:`~os.path.ismount`, and :mod:`pathlib.Path` methods that return a boolean result like :meth:`~pathlib.Path.exists()`, :meth:`~pathlib.Path.is_dir()`, :meth:`~pathlib.Path.is_file()`, :meth:`~pathlib.Path.is_mount()`, :meth:`~pathlib.Path.is_symlink()`, :meth:`~pathlib.Path.is_block_device()`, :meth:`~pathlib.Path.is_char_device()`, :meth:`~pathlib.Path.is_fifo()`, :meth:`~pathlib.Path.is_socket()` now return ``False`` instead of raising :exc:`ValueError` or its subclasses :exc:`UnicodeEncodeError` and :exc:`UnicodeDecodeError` for paths that contain characters or bytes unrepresentable at the OS level. .. .. bpo: 26544 .. date: 2018-06-13-20-33-29 .. nonce: hQ1oMt .. section: Library Fixed implementation of :func:`platform.libc_ver`. It almost always returned version '2.9' for glibc. .. .. bpo: 33843 .. date: 2018-06-12-18-59-16 .. nonce: qVAK8g .. section: Library Remove deprecated ``cgi.escape``, ``cgi.parse_qs`` and ``cgi.parse_qsl``. .. .. bpo: 33842 .. date: 2018-06-12-18-34-54 .. nonce: RZXSGu .. section: Library Remove ``tarfile.filemode`` which is deprecated since Python 3.3. .. .. bpo: 30167 .. date: 2018-06-10-19-29-17 .. nonce: G5EgC5 .. section: Library Prevent site.main() exception if PYTHONSTARTUP is set. Patch by Steve Weber. .. .. bpo: 33805 .. date: 2018-06-10-15-14-17 .. nonce: 5LAz5a .. section: Library Improve error message of dataclasses.replace() when an InitVar is not specified .. .. bpo: 33687 .. date: 2018-06-10-14-08-52 .. nonce: 1zZdnA .. section: Library Fix the call to ``os.chmod()`` for ``uu.decode()`` if a mode is given or decoded. Patch by Timo Furrer. .. .. bpo: 33812 .. date: 2018-06-10-13-26-02 .. nonce: frGAOr .. section: Library Datetime instance d with non-None tzinfo, but with d.tzinfo.utcoffset(d) returning None is now treated as naive by the astimezone() method. .. .. bpo: 32108 .. date: 2018-06-10-12-15-26 .. nonce: iEkvh0 .. section: Library In configparser, don't clear section when it is assigned to itself. .. .. bpo: 27397 .. date: 2018-06-10-09-43-54 .. nonce: 0_fFQR .. section: Library Make email module properly handle invalid-length base64 strings. .. .. bpo: 33578 .. date: 2018-06-08-23-55-34 .. nonce: 7oSsjG .. section: Library Implement multibyte encoder/decoder state methods .. .. bpo: 30805 .. date: 2018-06-08-17-34-16 .. nonce: 3qCWa0 .. section: Library Avoid race condition with debug logging .. .. bpo: 33476 .. date: 2018-06-08-00-29-40 .. nonce: R0Bhlj .. section: Library Fix _header_value_parser.py when address group is missing final ';'. Contributed by Enrique Perez-Terron .. .. bpo: 33694 .. date: 2018-06-07-23-51-00 .. nonce: F1zIR1 .. section: Library asyncio: Fix a race condition causing data loss on pause_reading()/resume_reading() when using the ProactorEventLoop. .. .. bpo: 32493 .. date: 2018-06-07-18-55-35 .. nonce: 1Bte62 .. section: Library Correct test for ``uuid_enc_be`` availability in ``configure.ac``. Patch by Michael Felt. .. .. bpo: 33792 .. date: 2018-06-07-12-38-12 .. nonce: 3aKG7u .. section: Library Add asyncio.WindowsSelectorEventLoopPolicy and asyncio.WindowsProactorEventLoopPolicy. .. .. bpo: 33274 .. date: 2018-06-06-22-01-33 .. nonce: teYqv8 .. section: Library W3C DOM Level 1 specifies return value of Element.removeAttributeNode() as "The Attr node that was removed." xml.dom.minidom now complies with this requirement. .. .. bpo: 33778 .. date: 2018-06-05-20-22-30 .. nonce: _tSAS6 .. section: Library Update ``unicodedata``'s database to Unicode version 11.0.0. .. .. bpo: 33165 .. date: 2018-06-05-12-43-25 .. nonce: 9TIsVf .. section: Library Added a stacklevel parameter to logging calls to allow use of wrapper/helper functions for logging APIs. .. .. bpo: 33770 .. date: 2018-06-05-11-29-26 .. nonce: oBhxxw .. section: Library improve base64 exception message for encoded inputs of invalid length .. .. bpo: 33769 .. date: 2018-06-04-13-46-39 .. nonce: D_pxYz .. section: Library asyncio/start_tls: Fix error message; cancel callbacks in case of an unhandled error; mark SSLTransport as closed if it is aborted. .. .. bpo: 33767 .. date: 2018-06-03-22-41-59 .. nonce: 2e82g3 .. section: Library The concatenation (``+``) and repetition (``*``) sequence operations now raise :exc:`TypeError` instead of :exc:`SystemError` when performed on :class:`mmap.mmap` objects. Patch by Zackery Spytz. .. .. bpo: 33734 .. date: 2018-06-01-10-55-48 .. nonce: x1W9x0 .. section: Library asyncio/ssl: Fix AttributeError, increase default handshake timeout .. .. bpo: 31014 .. date: 2018-05-31-06-48-55 .. nonce: SNY681 .. section: Library Fixed creating a controller for :mod:`webbrowser` when a user specifies a path to an entry in the BROWSER environment variable. Based on patch by John Still. .. .. bpo: 2504 .. date: 2018-05-30-16-00-06 .. nonce: BynUvU .. section: Library Add gettext.pgettext() and variants. .. .. bpo: 33197 .. date: 2018-05-30-00-26-05 .. nonce: XkE2kL .. section: Library Add description property for _ParameterKind .. .. bpo: 32751 .. date: 2018-05-29-15-32-18 .. nonce: oBTqr7 .. section: Library When cancelling the task due to a timeout, :meth:`asyncio.wait_for` will now wait until the cancellation is complete. .. .. bpo: 32684 .. date: 2018-05-29-12-51-18 .. nonce: ZEIism .. section: Library Fix gather to propagate cancellation of itself even with return_exceptions. .. .. bpo: 33654 .. date: 2018-05-29-01-13-39 .. nonce: sa81Si .. section: Library Support protocol type switching in SSLTransport.set_protocol(). .. .. bpo: 33674 .. date: 2018-05-29-00-37-56 .. nonce: 2IkGhL .. section: Library Pause the transport as early as possible to further reduce the risk of data_received() being called before connection_made(). .. .. bpo: 33671 .. date: 2018-05-28-23-25-17 .. nonce: GIdKKi .. section: Library :func:`shutil.copyfile`, :func:`shutil.copy`, :func:`shutil.copy2`, :func:`shutil.copytree` and :func:`shutil.move` use platform-specific fast-copy syscalls on Linux and macOS in order to copy the file more efficiently. On Windows :func:`shutil.copyfile` uses a bigger default buffer size (1 MiB instead of 16 KiB) and a :func:`memoryview`-based variant of :func:`shutil.copyfileobj` is used. The speedup for copying a 512MiB file is about +26% on Linux, +50% on macOS and +40% on Windows. Also, much less CPU cycles are consumed. (Contributed by Giampaolo Rodola' in :issue:`25427`.) .. .. bpo: 33674 .. date: 2018-05-28-22-49-59 .. nonce: 6LFFj7 .. section: Library Fix a race condition in SSLProtocol.connection_made() of asyncio.sslproto: start immediately the handshake instead of using call_soon(). Previously, data_received() could be called before the handshake started, causing the handshake to hang or fail. .. .. bpo: 31647 .. date: 2018-05-28-18-40-26 .. nonce: s4Fad3 .. section: Library Fixed bug where calling write_eof() on a _SelectorSocketTransport after it's already closed raises AttributeError. .. .. bpo: 32610 .. date: 2018-05-28-16-40-32 .. nonce: KvUAsL .. section: Library Make asyncio.all_tasks() return only pending tasks. .. .. bpo: 32410 .. date: 2018-05-28-16-19-35 .. nonce: Z1DZaF .. section: Library Avoid blocking on file IO in sendfile fallback code .. .. bpo: 33469 .. date: 2018-05-28-15-55-12 .. nonce: hmXBpY .. section: Library Fix RuntimeError after closing loop that used run_in_executor .. .. bpo: 33672 .. date: 2018-05-28-12-29-54 .. nonce: GM_Xm_ .. section: Library Fix Task.__repr__ crash with Cython's bogus coroutines .. .. bpo: 33654 .. date: 2018-05-26-13-09-34 .. nonce: IbYWxA .. section: Library Fix transport.set_protocol() to support switching between asyncio.Protocol and asyncio.BufferedProtocol. Fix loop.start_tls() to work with asyncio.BufferedProtocols. .. .. bpo: 33652 .. date: 2018-05-26-10-13-59 .. nonce: humFJ1 .. section: Library Pickles of type variables and subscripted generics are now future-proof and compatible with older Python versions. .. .. bpo: 32493 .. date: 2018-05-24-17-41-36 .. nonce: 5tAoAu .. section: Library Fixed :func:`uuid.uuid1` on FreeBSD. .. .. bpo: 33238 .. date: 2018-05-24-09-15-52 .. nonce: ooDfoo .. section: Library Add ``InvalidStateError`` to :mod:`concurrent.futures`. ``Future.set_result`` and ``Future.set_exception`` now raise ``InvalidStateError`` if the futures are not pending or running. Patch by Jason Haydaman. .. .. bpo: 33618 .. date: 2018-05-23-20-14-34 .. nonce: xU39lr .. section: Library Finalize and document preliminary and experimental TLS 1.3 support with OpenSSL 1.1.1 .. .. bpo: 33625 .. date: 2018-05-23-17-07-54 .. nonce: nzQgD8 .. section: Library Release GIL on ``grp.getgrnam``, ``grp.getgrgid``, ``pwd.getpwnam`` and ``pwd.getpwuid`` if reentrant variants of these functions are available. Patch by William Grzybowski. .. .. bpo: 33623 .. date: 2018-05-23-14-58-05 .. nonce: wAw1cF .. section: Library Fix possible SIGSGV when asyncio.Future is created in __del__ .. .. bpo: 11874 .. date: 2018-05-23-00-26-27 .. nonce: glK5iP .. section: Library Use a better regex when breaking usage into wrappable parts. Avoids bogus assertion errors from custom metavar strings. .. .. bpo: 30877 .. date: 2018-05-22-13-05-12 .. nonce: JZEGjI .. section: Library Fixed a bug in the Python implementation of the JSON decoder that prevented the cache of parsed strings from clearing after finishing the decoding. Based on patch by c-fos. .. .. bpo: 33604 .. date: 2018-05-22-11-55-33 .. nonce: 6V4JcO .. section: Library Remove HMAC default to md5 marked for removal in 3.8 (removal originally planned in 3.6, bump to 3.8 in PR 7062). .. .. bpo: 33582 .. date: 2018-05-19-15-58-14 .. nonce: qBZPmF .. section: Library Emit a deprecation warning for inspect.formatargspec .. .. bpo: 21145 .. date: 2018-05-18-22-52-34 .. nonce: AiQMDx .. section: Library Add ``functools.cached_property`` decorator, for computed properties cached for the life of the instance. .. .. bpo: 33570 .. date: 2018-05-18-21-50-47 .. nonce: 7CZy4t .. section: Library Change TLS 1.3 cipher suite settings for compatibility with OpenSSL 1.1.1-pre6 and newer. OpenSSL 1.1.1 will have TLS 1.3 ciphers enabled by default. .. .. bpo: 28556 .. date: 2018-05-17-22-53-08 .. nonce: C6Hnd1 .. section: Library Do not simplify arguments to ``typing.Union``. Now ``Union[Manager, Employee]`` is not simplified to ``Employee`` at runtime. Such simplification previously caused several bugs and limited possibilities for introspection. .. .. bpo: 12486 .. date: 2018-05-17-22-14-58 .. nonce: HBeh62 .. section: Library :func:`tokenize.generate_tokens` is now documented as a public API to tokenize unicode strings. It was previously present but undocumented. .. .. bpo: 33540 .. date: 2018-05-16-18-10-38 .. nonce: wy9LRV .. section: Library Add a new ``block_on_close`` class attribute to ``ForkingMixIn`` and ``ThreadingMixIn`` classes of :mod:`socketserver`. .. .. bpo: 33548 .. date: 2018-05-16-17-05-48 .. nonce: xWslmx .. section: Library tempfile._candidate_tempdir_list should consider common TEMP locations .. .. bpo: 33109 .. date: 2018-05-16-14-57-58 .. nonce: nPLL_S .. section: Library argparse subparsers are once again not required by default, reverting the change in behavior introduced by bpo-26510 in 3.7.0a2. .. .. bpo: 33541 .. date: 2018-05-16-12-32-48 .. nonce: kQORPE .. section: Library Remove unused private method ``_strptime.LocaleTime.__pad`` (a.k.a. ``_LocaleTime__pad``). .. .. bpo: 33536 .. date: 2018-05-16-10-07-40 .. nonce: _s0TE8 .. section: Library dataclasses.make_dataclass now checks for invalid field names and duplicate fields. Also, added a check for invalid field specifications. .. .. bpo: 33542 .. date: 2018-05-16-09-30-27 .. nonce: idNAcs .. section: Library Prevent ``uuid.get_node`` from using a DUID instead of a MAC on Windows. Patch by Zvi Effron .. .. bpo: 26819 .. date: 2018-05-16-05-24-43 .. nonce: taxbVT .. section: Library Fix race condition with ``ReadTransport.resume_reading`` in Windows proactor event loop. .. .. bpo: 0 .. date: 2018-05-15-18-02-03 .. nonce: pj2Mbb .. section: Library Fix failure in ``typing.get_type_hints()`` when ClassVar was provided as a string forward reference. .. .. bpo: 33516 .. date: 2018-05-15-17-06-42 .. nonce: ZzARe4 .. section: Library :class:`unittest.mock.MagicMock` now supports the ``__round__`` magic method. .. .. bpo: 28612 .. date: 2018-05-15-15-03-48 .. nonce: E9dz39 .. section: Library Added support for Site Maps to urllib's ``RobotFileParser`` as :meth:`RobotFileParser.site_maps() `. Patch by Lady Red, based on patch by Peter Wirtz. .. .. bpo: 28167 .. date: 2018-05-15-13-49-13 .. nonce: p4RdQt .. section: Library Remove platform.linux_distribution, which was deprecated since 3.5. .. .. bpo: 33504 .. date: 2018-05-15-12-11-13 .. nonce: czsHFg .. section: Library Switch the default dictionary implementation for :mod:`configparser` from :class:`collections.OrderedDict` to the standard :class:`dict` type. .. .. bpo: 33505 .. date: 2018-05-14-18-05-35 .. nonce: L8pAyt .. section: Library Optimize asyncio.ensure_future() by reordering if checks: 1.17x faster. .. .. bpo: 33497 .. date: 2018-05-14-17-49-34 .. nonce: wWT6XM .. section: Library Add errors param to cgi.parse_multipart and make an encoding in FieldStorage use the given errors (needed for Twisted). Patch by Amber Brown. .. .. bpo: 29235 .. date: 2018-05-14-15-01-55 .. nonce: 47Fzwt .. section: Library The :class:`cProfile.Profile` class can now be used as a context manager. Patch by Scott Sanderson. .. .. bpo: 33495 .. date: 2018-05-14-10-29-03 .. nonce: TeGTQJ .. section: Library Change dataclasses.Fields repr to use the repr of each of its members, instead of str. This makes it more clear what each field actually represents. This is especially true for the 'type' member. .. .. bpo: 26103 .. date: 2018-05-14-09-07-14 .. nonce: _zU8E2 .. section: Library Correct ``inspect.isdatadescriptor`` to look for ``__set__`` or ``__delete__``. Patch by Aaron Hall. .. .. bpo: 29209 .. date: 2018-05-12-13-06-41 .. nonce: h5RxYy .. section: Library Removed the ``doctype()`` method and the *html* parameter of the constructor of :class:`~xml.etree.ElementTree.XMLParser`. The ``doctype()`` method defined in a subclass will no longer be called. Deprecated methods ``getchildren()`` and ``getiterator()`` in the :mod:`~xml.etree.ElementTree` module emit now a :exc:`DeprecationWarning` instead of :exc:`PendingDeprecationWarning`. .. .. bpo: 33453 .. date: 2018-05-12-06-01-02 .. nonce: Fj-jMD .. section: Library Fix dataclasses to work if using literal string type annotations or if using PEP 563 "Postponed Evaluation of Annotations". Only specific string prefixes are detected for both ClassVar ("ClassVar" and "typing.ClassVar") and InitVar ("InitVar" and "dataclasses.InitVar"). .. .. bpo: 28556 .. date: 2018-05-08-16-43-42 .. nonce: _xr5mp .. section: Library Minor fixes in typing module: add annotations to ``NamedTuple.__new__``, pass ``*args`` and ``**kwds`` in ``Generic.__new__``. Original PRs by Paulius Šarka and Chad Dombrova. .. .. bpo: 33365 .. date: 2018-05-08-15-01-10 .. nonce: SicsAd .. section: Library Print the header values besides the header keys instead just the header keys if *debuglevel* is set to >0 in :mod:`http.client`. Patch by Marco Strigl. .. .. bpo: 20087 .. date: 2018-05-05-18-02-24 .. nonce: lJrvXL .. section: Library Updated alias mapping with glibc 2.27 supported locales. .. .. bpo: 33422 .. date: 2018-05-05-09-53-05 .. nonce: 4FtQ0q .. section: Library Fix trailing quotation marks getting deleted when looking up byte/string literals on pydoc. Patch by Andrés Delfino. .. .. bpo: 28167 .. date: 2018-05-02-07-26-29 .. nonce: 7FwDfN .. section: Library The function ``platform.linux_distribution`` and ``platform.dist`` now trigger a ``DeprecationWarning`` and have been marked for removal in Python 3.8 .. .. bpo: 33281 .. date: 2018-05-01-22-35-50 .. nonce: d4jOt4 .. section: Library Fix ctypes.util.find_library regression on macOS. .. .. bpo: 33311 .. date: 2018-05-01-22-33-14 .. nonce: 8YPB-k .. section: Library Text and html output generated by cgitb does not display parentheses if the current call is done directly in the module. Patch by Stéphane Blondon. .. .. bpo: 27300 .. date: 2018-05-01-02-24-44 .. nonce: LdIXvK .. section: Library The file classes in *tempfile* now accept an *errors* parameter that complements the already existing *encoding*. Patch by Stephan Hohe. .. .. bpo: 32933 .. date: 2018-04-30-22-43-31 .. nonce: M3iI_y .. section: Library :func:`unittest.mock.mock_open` now supports iteration over the file contents. Patch by Tony Flury. .. .. bpo: 33217 .. date: 2018-04-30-13-29-47 .. nonce: TENDzd .. section: Library Raise :exc:`TypeError` when looking up non-Enum objects in Enum classes and Enum members. .. .. bpo: 33197 .. date: 2018-04-29-23-56-20 .. nonce: dgRLqr .. section: Library Update error message when constructing invalid inspect.Parameters Patch by Donghee Na. .. .. bpo: 33383 .. date: 2018-04-29-11-15-38 .. nonce: g32YWn .. section: Library Fixed crash in the get() method of the :mod:`dbm.ndbm` database object when it is called with a single argument. .. .. bpo: 33375 .. date: 2018-04-28-08-11-35 .. nonce: Dbq1fz .. section: Library The warnings module now finds the Python file associated with a warning from the code object, rather than the frame's global namespace. This is consistent with how tracebacks and pdb find filenames, and should work better for dynamically executed code. .. .. bpo: 33336 .. date: 2018-04-27-22-18-38 .. nonce: T8rxn0 .. section: Library ``imaplib`` now allows ``MOVE`` command in ``IMAP4.uid()`` (RFC 6851: IMAP MOVE Extension) and potentially as a name of supported method of ``IMAP4`` object. .. .. bpo: 32455 .. date: 2018-04-26-13-31-10 .. nonce: KPWg3K .. section: Library Added *jump* parameter to :func:`dis.stack_effect`. .. .. bpo: 27485 .. date: 2018-04-25-14-05-21 .. nonce: nclVSU .. section: Library Rename and deprecate undocumented functions in :func:`urllib.parse`. .. .. bpo: 33332 .. date: 2018-04-23-21-41-30 .. nonce: Y6OZ8Z .. section: Library Add ``signal.valid_signals()`` to expose the POSIX sigfillset() functionality. .. .. bpo: 33251 .. date: 2018-04-23-18-25-36 .. nonce: C_K-J9 .. section: Library ``ConfigParser.items()`` was fixed so that key-value pairs passed in via :func:`vars` are not included in the resulting output. .. .. bpo: 33329 .. date: 2018-04-23-13-21-39 .. nonce: lQ-Eod .. section: Library Fix multiprocessing regression on newer glibcs .. .. bpo: 33334 .. date: 2018-04-22-20-13-21 .. nonce: 19UMOC .. section: Library :func:`dis.stack_effect` now supports all defined opcodes including NOP and EXTENDED_ARG. .. .. bpo: 991266 .. date: 2018-04-21-00-24-08 .. nonce: h93TP_ .. section: Library Fix quoting of the ``Comment`` attribute of :class:`http.cookies.SimpleCookie`. .. .. bpo: 33131 .. date: 2018-04-20-10-43-17 .. nonce: L2E977 .. section: Library Upgrade bundled version of pip to 10.0.1. .. .. bpo: 33308 .. date: 2018-04-18-19-12-25 .. nonce: fW75xi .. section: Library Fixed a crash in the :mod:`parser` module when converting an ST object to a tree of tuples or lists with ``line_info=False`` and ``col_info=True``. .. .. bpo: 23403 .. date: 2018-04-16-16-21-09 .. nonce: rxR1Q_ .. section: Library lib2to3 now uses pickle protocol 4 for pre-computed grammars. .. .. bpo: 33266 .. date: 2018-04-16-15-59-21 .. nonce: w2PAm- .. section: Library lib2to3 now recognizes ``rf'...'`` strings. .. .. bpo: 11594 .. date: 2018-04-16-08-42-03 .. nonce: QLo4vv .. section: Library Ensure line-endings are respected when using lib2to3. .. .. bpo: 33254 .. date: 2018-04-13-15-14-47 .. nonce: DS4KFK .. section: Library Have :func:`importlib.resources.contents` and :meth:`importlib.abc.ResourceReader.contents` return an :term:`iterable` instead of an :term:`iterator`. .. .. bpo: 33265 .. date: 2018-04-13-08-12-50 .. nonce: KPQRk0 .. section: Library ``contextlib.ExitStack`` and ``contextlib.AsyncExitStack`` now use a method instead of a wrapper function for exit callbacks. .. .. bpo: 33263 .. date: 2018-04-11-20-29-19 .. nonce: B56Hc1 .. section: Library Fix FD leak in ``_SelectorSocketTransport`` Patch by Vlad Starostin. .. .. bpo: 33256 .. date: 2018-04-10-20-57-14 .. nonce: ndHkqu .. section: Library Fix display of ```` call in the html produced by ``cgitb.html()``. Patch by Stéphane Blondon. .. .. bpo: 33144 .. date: 2018-04-10-14-50-30 .. nonce: iZr4et .. section: Library ``random.Random()`` and its subclassing mechanism got optimized to check only once at class/subclass instantiation time whether its ``getrandbits()`` method can be relied on by other methods, including ``randrange()``, for the generation of arbitrarily large random integers. Patch by Wolfgang Maier. .. .. bpo: 33185 .. date: 2018-04-08-22-54-07 .. nonce: Id-Ba9 .. section: Library Fixed regression when running pydoc with the :option:`-m` switch. (The regression was introduced in 3.7.0b3 by the resolution of :issue:`33053`) This fix also changed pydoc to add ``os.getcwd()`` to :data:`sys.path` when necessary, rather than adding ``"."``. .. .. bpo: 29613 .. date: 2018-04-07-13-49-39 .. nonce: r6FDnB .. section: Library Added support for the ``SameSite`` cookie flag to the ``http.cookies`` module. .. .. bpo: 33169 .. date: 2018-04-06-14-56-26 .. nonce: ByhDqb .. section: Library Delete entries of ``None`` in :data:`sys.path_importer_cache` when :meth:`importlib.machinery.invalidate_caches` is called. .. .. bpo: 33203 .. date: 2018-04-05-11-09-45 .. nonce: Hje9Py .. section: Library ``random.Random.choice()`` now raises ``IndexError`` for empty sequences consistently even when called from subclasses without a ``getrandbits()`` implementation. .. .. bpo: 33224 .. date: 2018-04-04-23-41-30 .. nonce: pyR0jB .. section: Library Update difflib.mdiff() for :pep:`479`. Convert an uncaught StopIteration in a generator into a return-statement. .. .. bpo: 33209 .. date: 2018-04-03-10-37-13 .. nonce: 9sGWE_ .. section: Library End framing at the end of C implementation of :func:`pickle.Pickler.dump`. .. .. bpo: 32861 .. date: 2018-04-02-20-44-54 .. nonce: HeBjzN .. section: Library The urllib.robotparser's ``__str__`` representation now includes wildcard entries and the "Crawl-delay" and "Request-rate" fields. Also removes extra newlines that were being appended to the end of the string. Patch by Michael Lazar. .. .. bpo: 23403 .. date: 2018-04-02-16-10-12 .. nonce: KG7ADV .. section: Library ``DEFAULT_PROTOCOL`` in :mod:`pickle` was bumped to 4. Protocol 4 is described in :pep:`3154` and available since Python 3.4. It offers better performance and smaller size compared to protocol 3 introduced in Python 3.0. .. .. bpo: 20104 .. date: 2018-04-01-19-21-04 .. nonce: -AKcGa .. section: Library Improved error handling and fixed a reference leak in :func:`os.posix_spawn()`. .. .. bpo: 33106 .. date: 2018-03-30-01-20-35 .. nonce: zncfvW .. section: Library Deleting a key from a read-only dbm database raises module specific error instead of KeyError. .. .. bpo: 33175 .. date: 2018-03-29-04-32-25 .. nonce: _zs1yM .. section: Library In dataclasses, Field.__set_name__ now looks up the __set_name__ special method on the class, not the instance, of the default value. .. .. bpo: 32380 .. date: 2018-03-29-03-09-22 .. nonce: NhuGig .. section: Library Create functools.singledispatchmethod to support generic single dispatch on descriptors and methods. .. .. bpo: 33141 .. date: 2018-03-26-12-33-13 .. nonce: 23wlxf .. section: Library Have Field objects pass through __set_name__ to their default values, if they have their own __set_name__. .. .. bpo: 33096 .. date: 2018-03-25-13-18-16 .. nonce: ofdbe7 .. section: Library Allow ttk.Treeview.insert to insert iid that has a false boolean value. Note iid=0 and iid=False would be same. Patch by Garvit Khatri. .. .. bpo: 32873 .. date: 2018-03-24-19-54-48 .. nonce: cHyoAm .. section: Library Treat type variables and special typing forms as immutable by copy and pickle. This fixes several minor issues and inconsistencies, and improves backwards compatibility with Python 3.6. .. .. bpo: 33134 .. date: 2018-03-24-19-34-26 .. nonce: hbVeIX .. section: Library When computing dataclass's __hash__, use the lookup table to contain the function which returns the __hash__ value. This is an improvement over looking up a string, and then testing that string to see what to do. .. .. bpo: 33127 .. date: 2018-03-24-15-08-24 .. nonce: olJmHv .. section: Library The ssl module now compiles with LibreSSL 2.7.1. .. .. bpo: 32505 .. date: 2018-03-22-16-05-56 .. nonce: YK1N8v .. section: Library Raise TypeError if a member variable of a dataclass is of type Field, but doesn't have a type annotation. .. .. bpo: 33078 .. date: 2018-03-21-17-59-39 .. nonce: PQOniT .. section: Library Fix the failure on OSX caused by the tests relying on sem_getvalue .. .. bpo: 33116 .. date: 2018-03-21-16-52-26 .. nonce: Tvzerj .. section: Library Add 'Field' to dataclasses.__all__. .. .. bpo: 32896 .. date: 2018-03-20-20-53-21 .. nonce: ewW3Ln .. section: Library Fix an error where subclassing a dataclass with a field that uses a default_factory would generate an incorrect class. .. .. bpo: 33100 .. date: 2018-03-19-20-47-00 .. nonce: chyIO4 .. section: Library Dataclasses: If a field has a default value that's a MemberDescriptorType, then it's from that field being in __slots__, not an actual default value. .. .. bpo: 32953 .. date: 2018-03-18-17-38-48 .. nonce: t8WAWN .. section: Library If a non-dataclass inherits from a frozen dataclass, allow attributes to be added to the derived class. Only attributes from the frozen dataclass cannot be assigned to. Require all dataclasses in a hierarchy to be either all frozen or all non-frozen. .. .. bpo: 33097 .. date: 2018-03-18-16-48-23 .. nonce: Yl4gI2 .. section: Library Raise RuntimeError when ``executor.submit`` is called during interpreter shutdown. .. .. bpo: 32968 .. date: 2018-03-18-15-57-32 .. nonce: E4G7BO .. section: Library Modulo and floor division involving Fraction and float should return float. .. .. bpo: 33061 .. date: 2018-03-16-16-07-33 .. nonce: TRTTek .. section: Library Add missing ``NoReturn`` to ``__all__`` in typing.py .. .. bpo: 33078 .. date: 2018-03-15-07-38-00 .. nonce: RmjUF5 .. section: Library Fix the size handling in multiprocessing.Queue when a pickling error occurs. .. .. bpo: 33064 .. date: 2018-03-12-19-58-25 .. nonce: LO2KIY .. section: Library lib2to3 now properly supports trailing commas after ``*args`` and ``**kwargs`` in function signatures. .. .. bpo: 33056 .. date: 2018-03-12-16-40-00 .. nonce: lNN9Eh .. section: Library FIX properly close leaking fds in concurrent.futures.ProcessPoolExecutor. .. .. bpo: 33021 .. date: 2018-03-12-00-27-56 .. nonce: m19B9T .. section: Library Release the GIL during fstat() calls, avoiding hang of all threads when calling mmap.mmap(), os.urandom(), and random.seed(). Patch by Nir Soffer. .. .. bpo: 31804 .. date: 2018-03-11-19-03-52 .. nonce: i8KUMp .. section: Library Avoid failing in multiprocessing.Process if the standard streams are closed or None at exit. .. .. bpo: 33034 .. date: 2018-03-11-08-44-12 .. nonce: bpb23d .. section: Library Providing an explicit error message when casting the port property to anything that is not an integer value using ``urlparse()`` and ``urlsplit()``. Patch by Matt Eaton. .. .. bpo: 30249 .. date: 2018-03-11-00-20-26 .. nonce: KSkgLB .. section: Library Improve struct.unpack_from() exception messages for problems with the buffer size and offset. .. .. bpo: 33037 .. date: 2018-03-09-23-07-07 .. nonce: nAJ3at .. section: Library Skip sending/receiving data after SSL transport closing. .. .. bpo: 27683 .. date: 2018-03-07-22-28-17 .. nonce: 572Rv4 .. section: Library Fix a regression in :mod:`ipaddress` that result of :meth:`hosts` is empty when the network is constructed by a tuple containing an integer mask and only 1 bit left for addresses. .. .. bpo: 22674 .. date: 2018-03-07-19-37-00 .. nonce: 2sIMmM .. section: Library Add the strsignal() function in the signal module that returns the system description of the given signal, as returned by strsignal(3). .. .. bpo: 32999 .. date: 2018-03-06-20-30-20 .. nonce: lgFXWl .. section: Library Fix C implementation of ``ABC.__subclasscheck__(cls, subclass)`` crashed when ``subclass`` is not a type object. .. .. bpo: 33009 .. date: 2018-03-06-11-54-59 .. nonce: -Ekysb .. section: Library Fix inspect.signature() for single-parameter partialmethods. .. .. bpo: 32969 .. date: 2018-03-06-00-19-41 .. nonce: rGTKa0 .. section: Library Expose several missing constants in zlib and fix corresponding documentation. .. .. bpo: 32056 .. date: 2018-03-01-17-49-56 .. nonce: IlpfgE .. section: Library Improved exceptions raised for invalid number of channels and sample width when read an audio file in modules :mod:`!aifc`, :mod:`wave` and :mod:`!sunau`. .. .. bpo: 32970 .. date: 2018-02-28-18-39-48 .. nonce: IPWtbS .. section: Library Improved disassembly of the MAKE_FUNCTION instruction. .. .. bpo: 32844 .. date: 2018-02-28-13-08-00 .. nonce: u8tnAe .. section: Library Fix wrong redirection of a low descriptor (0 or 1) to stderr in subprocess if another low descriptor is closed. .. .. bpo: 32960 .. date: 2018-02-26-20-04-40 .. nonce: 48r0Ml .. section: Library For dataclasses, disallow inheriting frozen from non-frozen classes, and also disallow inheriting non-frozen from frozen classes. This restriction will be relaxed at a future date. .. .. bpo: 32713 .. date: 2018-02-26-13-16-36 .. nonce: 55yegW .. section: Library Fixed tarfile.itn handling of out-of-bounds float values. Patch by Joffrey Fuhrer. .. .. bpo: 32257 .. date: 2018-02-26-09-08-07 .. nonce: 6ElnUt .. section: Library The ssl module now contains OP_NO_RENEGOTIATION constant, available with OpenSSL 1.1.0h or 1.1.1. .. .. bpo: 32951 .. date: 2018-02-25-18-22-01 .. nonce: gHrCXq .. section: Library Direct instantiation of SSLSocket and SSLObject objects is now prohibited. The constructors were never documented, tested, or designed as public constructors. Users were suppose to use ssl.wrap_socket() or SSLContext. .. .. bpo: 32929 .. date: 2018-02-25-13-47-48 .. nonce: X2gTDH .. section: Library Remove the tri-state parameter "hash", and add the boolean "unsafe_hash". If unsafe_hash is True, add a __hash__ function, but if a __hash__ exists, raise TypeError. If unsafe_hash is False, add a __hash__ based on the values of eq= and frozen=. The unsafe_hash=False behavior is the same as the old hash=None behavior. unsafe_hash=False is the default, just as hash=None used to be. .. .. bpo: 32947 .. date: 2018-02-25-13-06-21 .. nonce: mqStVW .. section: Library Add OP_ENABLE_MIDDLEBOX_COMPAT and test workaround for TLSv1.3 for future compatibility with OpenSSL 1.1.1. .. .. bpo: 32146 .. date: 2018-02-25-10-17-23 .. nonce: xOzUFW .. section: Library Document the interaction between frozen executables and the spawn and forkserver start methods in multiprocessing. .. .. bpo: 30622 .. date: 2018-02-24-21-40-42 .. nonce: dQjxSe .. section: Library The ssl module now detects missing NPN support in LibreSSL. .. .. bpo: 32922 .. date: 2018-02-23-19-12-04 .. nonce: u-xe0B .. section: Library dbm.open() now encodes filename with the filesystem encoding rather than default encoding. .. .. bpo: 32759 .. date: 2018-02-23-12-21-41 .. nonce: M-y9GA .. section: Library Free unused arenas in multiprocessing.heap. .. .. bpo: 32859 .. date: 2018-02-19-17-46-31 .. nonce: kAT-Xp .. section: Library In ``os.dup2``, don't check every call whether the ``dup3`` syscall exists or not. .. .. bpo: 32556 .. date: 2018-02-19-14-27-51 .. nonce: CsRsgr .. section: Library nt._getfinalpathname, nt._getvolumepathname and nt._getdiskusage now correctly convert from bytes. .. .. bpo: 21060 .. date: 2018-02-17-19-20-19 .. nonce: S1Z-x6 .. section: Library Rewrite confusing message from setup.py upload from "No dist file created in earlier command" to the more helpful "Must create and upload files in one command". .. .. bpo: 32857 .. date: 2018-02-16-14-37-14 .. nonce: -XljAx .. section: Library In :mod:`tkinter`, ``after_cancel(None)`` now raises a :exc:`ValueError` instead of canceling the first scheduled function. Patch by Cheryl Sabella. .. .. bpo: 32852 .. date: 2018-02-15-12-04-29 .. nonce: HDqIxM .. section: Library Make sure sys.argv remains as a list when running trace. .. .. bpo: 31333 .. date: 2018-02-15-08-18-52 .. nonce: 4fF-gM .. section: Library ``_abc`` module is added. It is a speedup module with C implementations for various functions and methods in ``abc``. Creating an ABC subclass and calling ``isinstance`` or ``issubclass`` with an ABC subclass are up to 1.5x faster. In addition, this makes Python start-up up to 10% faster. Note that the new implementation hides internal registry and caches, previously accessible via private attributes ``_abc_registry``, ``_abc_cache``, and ``_abc_negative_cache``. There are three debugging helper methods that can be used instead ``_dump_registry``, ``_abc_registry_clear``, and ``_abc_caches_clear``. .. .. bpo: 32841 .. date: 2018-02-14-00-21-24 .. nonce: bvHDOc .. section: Library Fixed ``asyncio.Condition`` issue which silently ignored cancellation after notifying and cancelling a conditional lock. Patch by Bar Harel. .. .. bpo: 32819 .. date: 2018-02-11-15-54-41 .. nonce: ZTRX2Q .. section: Library ssl.match_hostname() has been simplified and no longer depends on re and ipaddress module for wildcard and IP addresses. Error reporting for invalid wildcards has been improved. .. .. bpo: 19675 .. date: 2018-02-10-23-41-05 .. nonce: -dj35- .. section: Library ``multiprocessing.Pool`` no longer leaks processes if its initialization fails. .. .. bpo: 32394 .. date: 2018-02-10-13-51-56 .. nonce: dFM9SI .. section: Library socket: Remove TCP_FASTOPEN,TCP_KEEPCNT,TCP_KEEPIDLE,TCP_KEEPINTVL flags on older version Windows during run-time. .. .. bpo: 31787 .. date: 2018-02-09-21-41-56 .. nonce: owSZ2t .. section: Library Fixed refleaks of ``__init__()`` methods in various modules. (Contributed by Oren Milman) .. .. bpo: 30157 .. date: 2018-02-09-14-44-43 .. nonce: lEiiAK .. section: Library Fixed guessing quote and delimiter in csv.Sniffer.sniff() when only the last field is quoted. Patch by Jake Davis. .. .. bpo: 30688 .. date: 2018-02-08-18-59-11 .. nonce: zBh4TH .. section: Library Added support of ``\N{name}`` escapes in regular expressions. Based on patch by Jonathan Eunice. .. .. bpo: 32792 .. date: 2018-02-08-00-47-07 .. nonce: NtyDb4 .. section: Library collections.ChainMap() preserves the order of the underlying mappings. .. .. bpo: 32775 .. date: 2018-02-07-19-12-10 .. nonce: -T77_c .. section: Library :func:`fnmatch.translate()` no longer produces patterns which contain set operations. Sets starting with '[' or containing '--', '&&', '~~' or '||' will be interpreted differently in regular expressions in future versions. Currently they emit warnings. fnmatch.translate() now avoids producing patterns containing such sets by accident. .. .. bpo: 32622 .. date: 2018-02-06-17-58-15 .. nonce: AE0Jz7 .. section: Library Implement native fast sendfile for Windows proactor event loop. .. .. bpo: 32777 .. date: 2018-02-05-21-28-28 .. nonce: C-wIXF .. section: Library Fix a rare but potential pre-exec child process deadlock in subprocess on POSIX systems when marking file descriptors inheritable on exec in the child process. This bug appears to have been introduced in 3.4. .. .. bpo: 32647 .. date: 2018-02-05-13-31-42 .. nonce: ktmfR_ .. section: Library The ctypes module used to depend on indirect linking for dlopen. The shared extension is now explicitly linked against libdl on platforms with dl. .. .. bpo: 32749 .. date: 2018-02-02-17-21-24 .. nonce: u5scIn .. section: Library A :mod:`dbm.dumb` database opened with flags 'r' is now read-only. :func:`dbm.dumb.open` with flags 'r' and 'w' no longer creates a database if it does not exist. .. .. bpo: 32741 .. date: 2018-02-01-17-54-08 .. nonce: KUvOPL .. section: Library Implement ``asyncio.TimerHandle.when()`` method. .. .. bpo: 32691 .. date: 2018-02-01-15-53-35 .. nonce: VLWVTq .. section: Library Use mod_spec.parent when running modules with pdb .. .. bpo: 32734 .. date: 2018-02-01-01-34-47 .. nonce: gCV9AD .. section: Library Fixed ``asyncio.Lock()`` safety issue which allowed acquiring and locking the same lock multiple times, without it being free. Patch by Bar Harel. .. .. bpo: 32727 .. date: 2018-01-30-17-46-18 .. nonce: aHVsRC .. section: Library Do not include name field in SMTP envelope from address. Patch by Stéphane Wirtel .. .. bpo: 31453 .. date: 2018-01-21-15-01-50 .. nonce: cZiZBe .. section: Library Add TLSVersion constants and SSLContext.maximum_version / minimum_version attributes. The new API wraps OpenSSL 1.1 https://web.archive.org/web/20180309043602/https://www.openssl.org/docs/man1.1.0/ssl/SSL_CTX_set_min_proto_version.html feature. .. .. bpo: 24334 .. date: 2018-01-20-23-17-25 .. nonce: GZuQLv .. section: Library Internal implementation details of ssl module were cleaned up. The SSLSocket has one less layer of indirection. Owner and session information are now handled by the SSLSocket and SSLObject constructor. Channel binding implementation has been simplified. .. .. bpo: 31848 .. date: 2018-01-18-23-34-17 .. nonce: M2cldy .. section: Library Fix the error handling in Aifc_read.initfp() when the SSND chunk is not found. Patch by Zackery Spytz. .. .. bpo: 32585 .. date: 2018-01-18-13-09-00 .. nonce: qpeijr .. section: Library Add Ttk spinbox widget to :mod:`tkinter.ttk`. Patch by Alan D Moore. .. .. bpo: 32512 .. date: 2018-01-07-17-43-10 .. nonce: flC-dE .. section: Library :mod:`profile` CLI accepts ``-m module_name`` as an alternative to script path. .. .. bpo: 8525 .. date: 2018-01-01-00-16-59 .. nonce: Dq8s63 .. section: Library help() on a type now displays builtin subclasses. This is intended primarily to help with notification of more specific exception subclasses. Patch by Sanyam Khurana. .. .. bpo: 31639 .. date: 2017-12-27-21-55-19 .. nonce: l3avDJ .. section: Library http.server now exposes a ThreadingHTTPServer class and uses it when the module is run with ``-m`` to cope with web browsers pre-opening sockets. .. .. bpo: 29877 .. date: 2017-12-16-11-40-52 .. nonce: SfWhmz .. section: Library compileall: import ProcessPoolExecutor only when needed, preventing hangs on low resource platforms .. .. bpo: 32221 .. date: 2017-12-06-10-10-10 .. nonce: ideco_ .. section: Library Various functions returning tuple containing IPv6 addresses now omit ``%scope`` part since the same information is already encoded in *scopeid* tuple item. Especially this speeds up :func:`socket.recvfrom` when it receives multicast packet since useless resolving of network interface name is omitted. .. .. bpo: 32147 .. date: 2017-11-28-10-23-13 .. nonce: PI2k1Y .. section: Library :func:`binascii.unhexlify` is now up to 2 times faster. Patch by Sergey Fedoseev. .. .. bpo: 30693 .. date: 2017-11-27-15-09-49 .. nonce: yC4mJ8 .. section: Library The TarFile class now recurses directories in a reproducible way. .. .. bpo: 30693 .. date: 2017-11-27-15-09-49 .. nonce: yC4mJ7 .. section: Library The ZipFile class now recurses directories in a reproducible way. .. .. bpo: 31680 .. date: 2017-11-01-15-44-48 .. nonce: yO6oSC .. section: Library Added :data:`curses.ncurses_version`. .. .. bpo: 31908 .. date: 2017-10-31 .. nonce: g4xh8x .. section: Library Fix output of cover files for ``trace`` module command-line tool. Previously emitted cover files only when ``--missing`` option was used. Patch by Michael Selik. .. .. bpo: 31608 .. date: 2017-10-29-10-37-55 .. nonce: wkp8Nw .. section: Library Raise a ``TypeError`` instead of crashing if a ``collections.deque`` subclass returns a non-deque from ``__new__``. Patch by Oren Milman. .. .. bpo: 31425 .. date: 2017-10-24-10-18-35 .. nonce: 1lgw47 .. section: Library Add support for sockets of the AF_QIPCRTR address family, supported by the Linux kernel. This is used to communicate with services, such as GPS or radio, running on Qualcomm devices. Patch by Bjorn Andersson. .. .. bpo: 22005 .. date: 2017-10-12-22-39-55 .. nonce: lGP-sc .. section: Library Implemented unpickling instances of :class:`~datetime.datetime`, :class:`~datetime.date` and :class:`~datetime.time` pickled by Python 2. ``encoding='latin1'`` should be used for successful decoding. .. .. bpo: 27645 .. date: 2017-10-05-20-41-48 .. nonce: 1Y_Wag .. section: Library :class:`sqlite3.Connection` now exposes a :class:`~sqlite3.Connection.backup` method, if the underlying SQLite library is at version 3.6.11 or higher. Patch by Lele Gaifax. .. .. bpo: 16865 .. date: 2017-09-29-16-40-38 .. nonce: l-f6I_ .. section: Library Support arrays >=2GiB in :mod:`ctypes`. Patch by Segev Finer. .. .. bpo: 31508 .. date: 2017-09-19-12-38-31 .. nonce: pDsFJl .. section: Library Removed support of arguments in ``tkinter.ttk.Treeview.selection``. It was deprecated in 3.6. Use specialized methods like ``selection_set`` for changing the selection. .. .. bpo: 29456 .. date: 2017-08-24-17-55-39 .. nonce: XaB3MP .. section: Library Fix bugs in hangul normalization: u1176, u11a7 and u11c3 .. .. bpo: 21257 .. date: 2019-01-15-21-45-27 .. nonce: U9LKkx .. section: Documentation Document :func:`http.client.parse_headers`. .. .. bpo: 34764 .. date: 2018-12-23-23-52-31 .. nonce: DwOGeT .. section: Documentation Improve example of iter() with 2nd sentinel argument. .. .. bpo: 35564 .. date: 2018-12-22-22-52-05 .. nonce: TuEU_D .. section: Documentation Explicitly set master_doc variable in conf.py for compliance with Sphinx 2.0 .. .. bpo: 35511 .. date: 2018-12-16-16-14-44 .. nonce: iVcyav .. section: Documentation Specified that profile.Profile class doesn't not support enable or disable methods. Also, elaborated that Profile object as a context manager is only supported in cProfile module. .. .. bpo: 10536 .. date: 2018-11-04-22-03-56 .. nonce: a0IsfE .. section: Documentation Enhance the gettext docs. Patch by Éric Araujo .. .. bpo: 35089 .. date: 2018-10-28-16-51-31 .. nonce: _stCpS .. section: Documentation Remove mention of ``typing.io`` and ``typing.re``. Their types should be imported from ``typing`` directly. .. .. bpo: 35038 .. date: 2018-10-25-17-45-09 .. nonce: 2eVOYS .. section: Documentation Fix the documentation about an unexisting ``f_restricted`` attribute in the frame object. Patch by Stéphane Wirtel .. .. bpo: 35042 .. date: 2018-10-22-14-17-57 .. nonce: 1UGv1a .. section: Documentation Replace PEP XYZ by the pep role and allow to use the direct links to the PEPs. .. .. bpo: 35044 .. date: 2018-10-22-14-09-58 .. nonce: qjvNtI .. section: Documentation Fix the documentation with the role ``exc`` for the appropriated exception. Patch by Stéphane Wirtel .. .. bpo: 35035 .. date: 2018-10-21-02-20-36 .. nonce: 4zBObK .. section: Documentation Rename documentation for :mod:`email.utils` to ``email.utils.rst``. .. .. bpo: 34967 .. date: 2018-10-13-07-39-57 .. nonce: E40tFP .. section: Documentation Use app.add_object_type() instead of the deprecated Sphinx function app.description_unit() .. .. bpo: 34913 .. date: 2018-10-10-00-34-08 .. nonce: kVd1Fv .. section: Documentation Add documentation about the new command line interface of the gzip module. .. .. bpo: 32174 .. date: 2018-10-08-19-15-28 .. nonce: YO9CYm .. section: Documentation chm document displays non-ASCII charaters properly on some MBCS Windows systems. .. .. bpo: 11233 .. date: 2018-10-03-20-39-25 .. nonce: BX6Gen .. section: Documentation Create availability directive for documentation. Original patch by Georg Brandl. .. .. bpo: 34790 .. date: 2018-09-24-12-47-08 .. nonce: G2KXIH .. section: Documentation Document how passing coroutines to asyncio.wait() can be confusing. .. .. bpo: 34552 .. date: 2018-09-12-10-18-04 .. nonce: p9PoYv .. section: Documentation Make clear that ``==`` operator sometimes is equivalent to ``is``. The ``<``, ``<=``, ``>`` and ``>=`` operators are only defined where they make sense. .. .. bpo: 28617 .. date: 2018-09-06-22-39-47 .. nonce: MjnJLz .. section: Documentation Fixed info in the stdtypes docs concerning the types that support membership tests. .. .. bpo: 20177 .. date: 2018-07-28-17-17-42 .. nonce: cOZJWp .. section: Documentation Migrate datetime.date.fromtimestamp to Argument Clinic. Patch by Tim Hoffmann. .. .. bpo: 34065 .. date: 2018-07-07-20-38-41 .. nonce: 1snofM .. section: Documentation Fix wrongly written basicConfig documentation markup syntax .. .. bpo: 33460 .. date: 2018-06-22-08-38-29 .. nonce: kHt4D0 .. section: Documentation replaced ellipsis with correct error codes in tutorial chapter 3. .. .. bpo: 33847 .. date: 2018-06-15-14-58-45 .. nonce: IIDp6t .. section: Documentation Add '@' operator entry to index. .. .. bpo: 33409 .. date: 2018-06-08-23-46-01 .. nonce: r4z9MM .. section: Documentation Clarified the relationship between :pep:`538`'s PYTHONCOERCECLOCALE and PEP 540's PYTHONUTF8 mode. .. .. bpo: 33197 .. date: 2018-06-08-23-37-14 .. nonce: OERTKf .. section: Documentation Add versionadded tag to the documentation of ParameterKind.description .. .. bpo: 17045 .. date: 2018-06-07-08-33-45 .. nonce: ZNx6KU .. section: Documentation Improve the C-API doc for PyTypeObject. This includes adding several quick-reference tables and a lot of missing slot/typedef entries. The existing entries were also cleaned up with a slightly more consistent format. .. .. bpo: 33736 .. date: 2018-06-01-12-27-40 .. nonce: JVegIu .. section: Documentation Improve the documentation of :func:`asyncio.open_connection`, :func:`asyncio.start_server` and their UNIX socket counterparts. .. .. bpo: 23859 .. date: 2018-05-29-16-02-31 .. nonce: E5gba1 .. section: Documentation Document that ``asyncio.wait()`` does not cancel its futures on timeout. .. .. bpo: 32436 .. date: 2018-05-23-11-59-51 .. nonce: S1LGPa .. section: Documentation Document :pep:`567` changes to asyncio. .. .. bpo: 33604 .. date: 2018-05-22-11-47-14 .. nonce: 5YHTpz .. section: Documentation Update HMAC md5 default to a DeprecationWarning, bump removal to 3.8. .. .. bpo: 33594 .. date: 2018-05-21-14-36-12 .. nonce: -HRcyX .. section: Documentation Document ``getargspec``, ``from_function`` and ``from_builtin`` as deprecated in their respective docstring, and include version since deprecation in DeprecationWarning message. .. .. bpo: 33503 .. date: 2018-05-14-20-08-58 .. nonce: Wvt0qg .. section: Documentation Fix broken pypi link .. .. bpo: 33421 .. date: 2018-05-14-15-15-41 .. nonce: 3GU_QO .. section: Documentation Add missing documentation for ``typing.AsyncContextManager``. .. .. bpo: 33487 .. date: 2018-05-13-14-44-30 .. nonce: iLDzFb .. section: Documentation BZ2file now emit a DeprecationWarning when buffering=None is passed, the deprecation message and documentation also now explicitly state it is deprecated since 3.0. .. .. bpo: 33378 .. date: 2018-04-29-04-02-18 .. nonce: -anAHN .. section: Documentation Add Korean language switcher for https://docs.python.org/3/ .. .. bpo: 33276 .. date: 2018-04-20-14-09-36 .. nonce: rA1z_3 .. section: Documentation Clarify that the ``__path__`` attribute on modules cannot be just any value. .. .. bpo: 33201 .. date: 2018-04-01-21-03-41 .. nonce: aa8Lkl .. section: Documentation Modernize documentation for writing C extension types. .. .. bpo: 33195 .. date: 2018-04-01-14-30-36 .. nonce: dRS-XX .. section: Documentation Deprecate ``Py_UNICODE`` usage in ``c-api/arg`` document. ``Py_UNICODE`` related APIs are deprecated since Python 3.3, but it is missed in the document. .. .. bpo: 33126 .. date: 2018-03-28-17-03-17 .. nonce: 5UGkNv .. section: Documentation Document PyBuffer_ToContiguous(). .. .. bpo: 27212 .. date: 2018-03-22-19-23-04 .. nonce: wrE5KR .. section: Documentation Modify documentation for the :func:`islice` recipe to consume initial values up to the start index. .. .. bpo: 28247 .. date: 2018-03-20-20-11-05 .. nonce: -V-WS- .. section: Documentation Update :mod:`zipapp` documentation to describe how to make standalone applications. .. .. bpo: 18802 .. date: 2018-03-11-18-53-47 .. nonce: JhAqH3 .. section: Documentation Documentation changes for ipaddress. Patch by Jon Foster and Berker Peksag. .. .. bpo: 27428 .. date: 2018-03-11-00-16-56 .. nonce: B7A8FT .. section: Documentation Update documentation to clarify that ``WindowsRegistryFinder`` implements ``MetaPathFinder``. (Patch by Himanshu Lakhara) .. .. bpo: 28124 .. date: 2018-02-25-16-33-35 .. nonce: _uzkgq .. section: Documentation The ssl module function ssl.wrap_socket() has been de-emphasized and deprecated in favor of the more secure and efficient SSLContext.wrap_socket() method. .. .. bpo: 17232 .. date: 2018-02-23-12-48-03 .. nonce: tmuTKL .. section: Documentation Clarify docs for -O and -OO. Patch by Terry Reedy. .. .. bpo: 32436 .. date: 2018-02-14-11-10-41 .. nonce: TTJ2jb .. section: Documentation Add documentation for the contextvars module (PEP 567). .. .. bpo: 32800 .. date: 2018-02-10-15-16-04 .. nonce: FyrqCk .. section: Documentation Update link to w3c doc for xml default namespaces. .. .. bpo: 11015 .. date: 2018-02-10-12-48-38 .. nonce: -gUf34 .. section: Documentation Update :mod:`test.support` documentation. .. .. bpo: 32613 .. date: 2018-02-05-15-05-53 .. nonce: TDjgM1 .. section: Documentation Update the faq/windows.html to use the py command from PEP 397 instead of python. .. .. bpo: 8722 .. date: 2018-02-03-06-11-37 .. nonce: MPyVyj .. section: Documentation Document :meth:`__getattr__` behavior when property :meth:`get` method raises :exc:`AttributeError`. .. .. bpo: 32614 .. date: 2018-02-02-07-41-57 .. nonce: LSqzGw .. section: Documentation Modify RE examples in documentation to use raw strings to prevent :exc:`DeprecationWarning` and add text to REGEX HOWTO to highlight the deprecation. .. .. bpo: 20709 .. date: 2018-02-01-10-57-24 .. nonce: 1flcnc .. section: Documentation Remove the paragraph where we explain that os.utime() does not support a directory as path under Windows. Patch by Jan-Philip Gehrcke .. .. bpo: 32722 .. date: 2018-01-30-11-28-27 .. nonce: frdp6A .. section: Documentation Remove the bad example in the tutorial of the Generator Expression. Patch by Stéphane Wirtel .. .. bpo: 31972 .. date: 2018-01-25-14-23-12 .. nonce: w1m_8r .. section: Documentation Improve docstrings for ``pathlib.PurePath`` subclasses. .. .. bpo: 30607 .. date: 2018-01-25-13-58-49 .. nonce: 4dXxiq .. section: Documentation Use the externalized ``python-docs-theme`` package when building the documentation. .. .. bpo: 8243 .. date: 2018-01-13-20-30-53 .. nonce: s98r28 .. section: Documentation Add a note about curses.addch and curses.addstr exception behavior when writing outside a window, or pad. .. .. bpo: 32337 .. date: 2017-12-22-17-29-37 .. nonce: eZe-ID .. section: Documentation Update documentation related with ``dict`` order. .. .. bpo: 25041 .. date: 2017-10-23-13-41-12 .. nonce: iAo2gW .. section: Documentation Document ``AF_PACKET`` in the :mod:`socket` module. .. .. bpo: 31432 .. date: 2017-09-13-07-14-59 .. nonce: yAY4Z3 .. section: Documentation Clarify meaning of CERT_NONE, CERT_OPTIONAL, and CERT_REQUIRED flags for ssl.SSLContext.verify_mode. .. .. bpo: 35772 .. date: 2019-01-18-12-19-19 .. nonce: sGBbsn .. section: Tests Fix sparse file tests of test_tarfile on ppc64 with the tmpfs filesystem. Fix the function testing if the filesystem supports sparse files: create a file which contains data and "holes", instead of creating a file which contains no data. tmpfs effective block size is a page size (tmpfs lives in the page cache). RHEL uses 64 KiB pages on aarch64, ppc64, ppc64le, only s390x and x86_64 use 4 KiB pages, whereas the test punch holes of 4 KiB. .. .. bpo: 35045 .. date: 2019-01-10-18-35-42 .. nonce: qdd6d9 .. section: Tests Make ssl tests less strict and also accept TLSv1 as system default. The changes unbreaks test_min_max_version on Fedora 29. .. .. bpo: 32710 .. date: 2019-01-07-23-34-41 .. nonce: Hzo1b8 .. section: Tests ``test_asyncio/test_sendfile.py`` now resets the event loop policy using :func:`tearDownModule` as done in other tests, to prevent a warning when running tests on Windows. .. .. bpo: 33717 .. date: 2019-01-07-23-22-44 .. nonce: GhHXv8 .. section: Tests test.pythoninfo now logs information of all clocks, not only time.time() and time.perf_counter(). .. .. bpo: 35488 .. date: 2019-01-04-21-34-53 .. nonce: U7JJzP .. section: Tests Add a test to pathlib's Path.match() to verify it does not support glob-style ** recursive pattern matching. .. .. bpo: 31731 .. date: 2018-12-18-23-20-39 .. nonce: tcv85C .. section: Tests Fix a race condition in ``check_interrupted_write()`` of test_io: create directly the thread with SIGALRM signal blocked, rather than blocking the signal later from the thread. Previously, it was possible that the thread gets the signal before the signal is blocked. .. .. bpo: 35424 .. date: 2018-12-18-22-36-53 .. nonce: 1Pz4IS .. section: Tests Fix test_multiprocessing_main_handling: use :class:`multiprocessing.Pool` with a context manager and then explicitly join the pool. .. .. bpo: 35519 .. date: 2018-12-17-16-41-45 .. nonce: RR3L_w .. section: Tests Rename :mod:`test.bisect` module to :mod:`test.bisect_cmd` to avoid conflict with :mod:`bisect` module when running directly a test like ``./python Lib/test/test_xmlrpc.py``. .. .. bpo: 35513 .. date: 2018-12-16-23-36-47 .. nonce: k4WHlA .. section: Tests Replace :func:`time.time` with :func:`time.monotonic` in tests to measure time delta. .. .. bpo: 34279 .. date: 2018-12-12-18-20-18 .. nonce: DhKcuP .. section: Tests :func:`test.support.run_unittest` no longer raise :exc:`TestDidNotRun` if the test result contains skipped tests. The exception is now only raised if no test have been run and no test have been skipped. .. .. bpo: 35412 .. date: 2018-12-12-18-07-58 .. nonce: kbuJor .. section: Tests Add testcase to ``test_future4``: check unicode literal. .. .. bpo: 26704 .. date: 2018-12-10-13-18-37 .. nonce: DBAN4c .. section: Tests Added test demonstrating double-patching of an instance method. Patch by Anthony Sottile. .. .. bpo: 33725 .. date: 2018-12-09-01-27-29 .. nonce: TaGayj .. section: Tests test_multiprocessing_fork may crash on recent versions of macOS. Until the issue is resolved, skip the test on macOS. .. .. bpo: 35352 .. date: 2018-11-30-17-18-56 .. nonce: 8bD7GC .. section: Tests Modify test_asyncio to use the certificate set from the test directory. .. .. bpo: 35317 .. date: 2018-11-26-16-54-21 .. nonce: jByGP2 .. section: Tests Fix ``mktime()`` overflow error in ``test_email``: run ``test_localtime_daylight_true_dst_true()`` and ``test_localtime_daylight_false_dst_true()`` with a specific timezone. .. .. bpo: 21263 .. date: 2018-11-04-20-17-09 .. nonce: T3qo9r .. section: Tests After several reports that test_gdb does not work properly on macOS and since gdb is not shipped by default anymore, test_gdb is now skipped on macOS when LLVM Clang has been used to compile Python. Patch by Lysandros Nikolaou .. .. bpo: 34279 .. date: 2018-10-27-13-41-55 .. nonce: v0Xqxe .. section: Tests regrtest issue a warning when no tests have been executed in a particular test file. Also, a new final result state is issued if no test have been executed across all test files. Patch by Pablo Galindo. .. .. bpo: 34962 .. date: 2018-10-11-22-34-27 .. nonce: 0PLBi8 .. section: Tests make docstest in Doc now passes., and is enforced in CI .. .. bpo: 23596 .. date: 2018-10-09-23-51-07 .. nonce: rdnert .. section: Tests Use argparse for the command line of the gzip module. Patch by Antony Lee .. .. bpo: 34537 .. date: 2018-09-21-17-33-41 .. nonce: GImYtZ .. section: Tests Fix ``test_gdb.test_strings()`` when ``LC_ALL=C`` and GDB was compiled with Python 3.6 or earlier. .. .. bpo: 34587 .. date: 2018-09-13-20-58-07 .. nonce: rCcxp3 .. section: Tests test_socket: Remove RDSTest.testCongestion(). The test tries to fill the receiver's socket buffer and expects an error. But the RDS protocol doesn't require that. Moreover, the Linux implementation of RDS expects that the producer of the messages reduces its rate, it's not the role of the receiver to trigger an error. The test fails on Fedora 28 by design, so just remove it. .. .. bpo: 34661 .. date: 2018-09-13-09-53-15 .. nonce: bdTamP .. section: Tests Fix test_shutil if unzip doesn't support -t. .. .. bpo: 34200 .. date: 2018-09-12-17-00-34 .. nonce: dfxYQK .. section: Tests Fixed non-deterministic flakiness of test_pkg by not using the scary test.support.module_cleanup() logic to save and restore sys.modules contents between test cases. .. .. bpo: 34569 .. date: 2018-09-09-14-36-59 .. nonce: okj1Xh .. section: Tests The experimental PEP 554 data channels now correctly pass negative PyLong objects between subinterpreters on 32-bit systems. Patch by Michael Felt. .. .. bpo: 34594 .. date: 2018-09-05-23-50-21 .. nonce: tqL-GS .. section: Tests Fix usage of hardcoded ``errno`` values in the tests. .. .. bpo: 34579 .. date: 2018-09-04-15-16-42 .. nonce: bp4HdM .. section: Tests Fix test_embed for AIX Patch by Michael Felt .. .. bpo: 34542 .. date: 2018-08-29-16-30-52 .. nonce: 9stVAW .. section: Tests Use 3072 RSA keys and SHA-256 signature for test certs and keys. .. .. bpo: 11193 .. date: 2018-08-26-13-12-34 .. nonce: H8fCGa .. section: Tests Remove special condition for AIX in ``test_subprocess.test_undecodable_env`` .. .. bpo: 34347 .. date: 2018-08-25-13-28-18 .. nonce: IsRDPB .. section: Tests Fix ``test_utf8_mode.test_cmd_line`` for AIX .. .. bpo: 34490 .. date: 2018-08-24-20-23-15 .. nonce: vb2cx4 .. section: Tests On AIX with AF_UNIX family sockets getsockname() does not provide 'sockname', so skip calls to transport.get_extra_info('sockname') .. .. bpo: 34391 .. date: 2018-08-16-18-48-47 .. nonce: ouNfxC .. section: Tests Fix ftplib test for TLS 1.3 by reading from data socket. .. .. bpo: 11192 .. date: 2018-08-14-20-50-07 .. nonce: g7TwYm .. section: Tests Fix ``test_socket`` on AIX 6.1 and later IPv6 zone id supports only supported by ``inet_pton6_zone()``. Switch to runtime-based ``platform.system()`` to establish current platform rather than build-time based ``sys.platform()`` .. .. bpo: 34399 .. date: 2018-08-14-10-47-44 .. nonce: D_jd1G .. section: Tests Update all RSA keys and DH params to use at least 2048 bits. .. .. bpo: 34373 .. date: 2018-08-10-16-17-51 .. nonce: SKdb1k .. section: Tests Fix ``test_mktime`` and ``test_pthread_getcpuclickid`` tests for AIX Add range checking for ``_PyTime_localtime`` for AIX Patch by Michael Felt .. .. bpo: 11191 .. date: 2018-08-08-22-41-30 .. nonce: eq9tSH .. section: Tests Skip the distutils test 'test_search_cpp' when using XLC as compiler patch by aixtools (Michael Felt) .. .. bpo: 0 .. date: 2018-07-10-18-53-46 .. nonce: UBQJBc .. section: Tests Improved an error message when mock assert_has_calls fails. .. .. bpo: 33746 .. date: 2018-06-19-17-55-46 .. nonce: Sz7avn .. section: Tests Fix test_unittest when run in verbose mode. .. .. bpo: 33901 .. date: 2018-06-19-14-04-21 .. nonce: OFW1Sr .. section: Tests Fix test_dbm_gnu on macOS with gdbm 1.15: add a larger value to make sure that the file size changes. .. .. bpo: 33873 .. date: 2018-06-16-01-37-31 .. nonce: d86vab .. section: Tests Fix a bug in ``regrtest`` that caused an extra test to run if --huntrleaks/-R was used. Exit with error in case that invalid parameters are specified to --huntrleaks/-R (at least one warmup run and one repetition must be used). .. .. bpo: 33562 .. date: 2018-06-01-14-25-31 .. nonce: GutEHf .. section: Tests Check that a global asyncio event loop policy is not left behind by any tests. .. .. bpo: 33655 .. date: 2018-05-26-16-01-40 .. nonce: Frb4LA .. section: Tests Ignore test_posix_fallocate failures on BSD platforms that might be due to running on ZFS. .. .. bpo: 32962 .. date: 2018-05-10-16-59-15 .. nonce: S-rcIN .. section: Tests Fixed test_gdb when Python is compiled with flags -mcet -fcf-protection -O0. .. .. bpo: 33358 .. date: 2018-04-27-11-46-35 .. nonce: _OcR59 .. section: Tests Fix ``test_embed.test_pre_initialization_sys_options()`` when the interpreter is built with ``--enable-shared``. .. .. bpo: 32872 .. date: 2018-03-28-01-35-02 .. nonce: J5NDUj .. section: Tests Avoid regrtest compatibility issue with namespace packages. .. .. bpo: 32517 .. date: 2018-03-09-07-05-12 .. nonce: ugc1iW .. section: Tests Fix failing ``test_asyncio`` on macOS 10.12.2+ due to transport of ``KqueueSelector`` loop was not being closed. .. .. bpo: 32663 .. date: 2018-01-25-18-10-47 .. nonce: IKDsqu .. section: Tests Making sure the ``SMTPUTF8SimTests`` class of tests gets run in ``test_smtplib.py``. .. .. bpo: 27643 .. date: 2018-01-12-09-05-19 .. nonce: _6z49y .. section: Tests Test_C test case needs "signed short" bitfields, but the IBM XLC compiler (on AIX) does not support this Skip the code and test when AIX and XLC are used Applicable to Python2-2.7 and later .. .. bpo: 19417 .. date: 2018-01-08-13-33-47 .. nonce: 2asoXy .. section: Tests Add test_bdb.py. .. .. bpo: 31809 .. date: 2017-10-18-18-07-45 .. nonce: KlQrkE .. section: Tests Add tests to verify connection with secp ECDH curves. .. .. bpo: 34691 .. date: 2019-02-02-13-34-05 .. nonce: B-Lsj4 .. section: Build The _contextvars module is now built into the core Python library on Windows. .. .. bpo: 35683 .. date: 2019-01-10-11-37-18 .. nonce: pf5Oos .. section: Build Improved Azure Pipelines build steps and now verifying layouts correctly .. .. bpo: 35642 .. date: 2019-01-02-11-23-33 .. nonce: pjkhJe .. section: Build Remove asynciomodule.c from pythoncore.vcxproj .. .. bpo: 35550 .. date: 2018-12-29-10-19-43 .. nonce: BTuu8e .. section: Build Fix incorrect Solaris #ifdef checks to look for __sun && __SVR4 instead of sun when compiling. .. .. bpo: 35499 .. date: 2018-12-14-19-36-05 .. nonce: 9yAldM .. section: Build ``make profile-opt`` no longer replaces ``CFLAGS_NODIST`` with ``CFLAGS``. It now adds profile-guided optimization (PGO) flags to ``CFLAGS_NODIST``: existing ``CFLAGS_NODIST`` flags are kept. .. .. bpo: 35257 .. date: 2018-12-05-22-28-40 .. nonce: dmcd_s .. section: Build Avoid leaking the linker flags from Link Time Optimizations (LTO) into distutils when compiling C extensions. .. .. bpo: 35351 .. date: 2018-12-04-15-33-28 .. nonce: ZhhBfT .. section: Build When building Python with clang and LTO, LTO flags are no longer passed into CFLAGS to build third-party C extensions through distutils. .. .. bpo: 35139 .. date: 2018-11-01-15-01-23 .. nonce: XZTttb .. section: Build Fix a compiler error when statically linking ``pyexpat`` in ``Modules/Setup``. .. .. bpo: 35059 .. date: 2018-10-26-14-49-19 .. nonce: PKsBxP .. section: Build PCbuild: Set InlineFunctionExpansion to OnlyExplicitInline ("/Ob1" option) in pyproject.props in Debug mode to expand functions marked as inline. This change should make Python compiled in Debug mode a little bit faster on Windows. .. .. bpo: 35011 .. date: 2018-10-17-17-38-57 .. nonce: GgoPIC .. section: Build Restores the use of pyexpatns.h to isolate our embedded copy of the expat C library so that its symbols do not conflict at link or dynamic loading time with an embedding application or other extension modules with their own version of libexpat. .. .. bpo: 28015 .. date: 2018-10-16-12-22-36 .. nonce: ylSgFh .. section: Build Have --with-lto works correctly with clang. .. .. bpo: 34765 .. date: 2018-09-26-17-29-10 .. nonce: AvxdVj .. section: Build Update the outdated install-sh file to the latest revision from automake v1.16.1 .. .. bpo: 34585 .. date: 2018-09-18-16-28-31 .. nonce: CGMu0h .. section: Build Check for floating-point byte order in configure.ac using compilation tests instead of executing code, so that these checks work in cross-compiled builds. .. .. bpo: 34710 .. date: 2018-09-17-13-56-12 .. nonce: ARqIAK .. section: Build Fixed SSL module build with OpenSSL & pedantic CFLAGS. .. .. bpo: 34582 .. date: 2018-09-14-09-53-21 .. nonce: j3omgk .. section: Build Add JUnit XML output for regression tests and update Azure DevOps builds. .. .. bpo: 34081 .. date: 2018-09-06-07-15-20 .. nonce: cuSTnH .. section: Build Make Sphinx warnings as errors in the Docs Makefile. .. .. bpo: 34555 .. date: 2018-08-31-19-41-09 .. nonce: dfQcnm .. section: Build Fix for case where it was not possible to have both ``HAVE_LINUX_VM_SOCKETS_H`` and ``HAVE_SOCKADDR_ALG`` be undefined. .. .. bpo: 33015 .. date: 2018-08-24-09-48-25 .. nonce: s21y74 .. section: Build Fix an undefined behaviour in the pthread implementation of :c:func:`PyThread_start_new_thread`: add a function wrapper to always return ``NULL``. .. .. bpo: 34245 .. date: 2018-07-27-09-52-48 .. nonce: bBV0NI .. section: Build The Python shared library is now installed with write permission (mode 0755), which is the standard way of installing such libraries. .. .. bpo: 34121 .. date: 2018-07-15-16-49-06 .. nonce: 74G_lo .. section: Build Fix detection of C11 atomic support on clang. .. .. bpo: 32430 .. date: 2018-07-10-21-33-25 .. nonce: UN3Nk8 .. section: Build Rename Modules/Setup.dist to Modules/Setup, and remove the necessity to copy the former manually to the latter when updating the local source tree. .. .. bpo: 30345 .. date: 2018-06-15-18-18-16 .. nonce: j-xRE1 .. section: Build Add -g to LDFLAGS when compiling with LTO to get debug symbols. .. .. bpo: 5755 .. date: 2018-06-04-21-34-34 .. nonce: 65GmCj .. section: Build Move ``-Wstrict-prototypes`` option to ``CFLAGS_NODIST`` from ``OPT``. This option emitted annoying warnings when building extension modules written in C++. .. .. bpo: 33614 .. date: 2018-05-28-11-40-22 .. nonce: 28e0sE .. section: Build Ensures module definition files for the stable ABI on Windows are correctly regenerated. .. .. bpo: 33648 .. date: 2018-05-25-13-05-51 .. nonce: bJ4JZH .. section: Build The --with-c-locale-warning configuration flag has been removed. It has had no effect for about a year. .. .. bpo: 33522 .. date: 2018-05-15-12-44-50 .. nonce: mJoNcA .. section: Build Enable CI builds on Visual Studio Team Services at https://python.visualstudio.com/cpython .. .. bpo: 33512 .. date: 2018-05-15-02-07-49 .. nonce: X4Fy1Q .. section: Build configure's check for "long double" has been simplified .. .. bpo: 33483 .. date: 2018-05-13-17-21-54 .. nonce: WOs-en .. section: Build C compiler is now correctly detected from the standard environment variables. --without-gcc and --with-icc options have been removed. .. .. bpo: 33394 .. date: 2018-04-30-17-36-46 .. nonce: _Vdi4t .. section: Build Enable the verbose build for extension modules, when GNU make is passed macros on the command line. .. .. bpo: 33393 .. date: 2018-04-30-17-19-37 .. nonce: HkVCqI .. section: Build Update config.guess and config.sub files. .. .. bpo: 33377 .. date: 2018-04-30-16-53-00 .. nonce: QBh6vP .. section: Build Add new triplets for mips r6 and riscv variants (used in extension suffixes). .. .. bpo: 32232 .. date: 2018-04-17-00-38-19 .. nonce: o7G_UO .. section: Build By default, modules configured in ``Modules/Setup`` are no longer built with ``-DPy_BUILD_CORE``. Instead, modules that specifically need that preprocessor definition include it in their individual entries. .. .. bpo: 33182 .. date: 2018-03-30-14-55-48 .. nonce: CePczb .. section: Build The embedding tests can once again be built with clang 6.0 .. .. bpo: 33163 .. date: 2018-03-28-04-15-03 .. nonce: hfpWuU .. section: Build Upgrade pip to 9.0.3 and setuptools to v39.0.1. .. .. bpo: 33012 .. date: 2018-03-08-20-25-29 .. nonce: k9Fe1q .. section: Build gcc 8 has added a new warning heuristic to detect invalid function casts and a stock python build seems to hit that warning quite often. The most common is the cast of a METH_NOARGS function (that uses just one argument) to a PyCFunction. Fix this by adding a dummy argument to all functions that implement METH_NOARGS. .. .. bpo: 32898 .. date: 2018-02-21-12-46-00 .. nonce: M15bZh .. section: Build Fix the python debug build when using COUNT_ALLOCS. .. .. bpo: 29442 .. date: 2017-09-26-23-08-27 .. nonce: fD8YTi .. section: Build Replace optparse with argparse in setup.py .. .. bpo: 35890 .. date: 2019-02-02-22-12-23 .. nonce: ccIjHH .. section: Windows Fix API calling consistency of GetVersionEx and wcstok. .. .. bpo: 32560 .. date: 2019-02-02-11-02-44 .. nonce: I5WAGW .. section: Windows The ``py`` launcher now forwards its ``STARTUPINFO`` structure to child processes. .. .. bpo: 35854 .. date: 2019-01-29-15-44-46 .. nonce: Ww3z19 .. section: Windows Fix EnvBuilder and --symlinks in venv on Windows .. .. bpo: 35811 .. date: 2019-01-25-12-46-36 .. nonce: 2hU-mm .. section: Windows Avoid propagating venv settings when launching via py.exe .. .. bpo: 35797 .. date: 2019-01-25-12-29-14 .. nonce: MzyOK9 .. section: Windows Fix default executable used by the multiprocessing module .. .. bpo: 35758 .. date: 2019-01-21-05-18-14 .. nonce: 8LsY3l .. section: Windows Allow building on ARM with MSVC. .. .. bpo: 29734 .. date: 2019-01-12-16-52-38 .. nonce: 6_OJwI .. section: Windows Fix handle leaks in os.stat on Windows. .. .. bpo: 35596 .. date: 2019-01-08-13-56-01 .. nonce: oFvhcm .. section: Windows Use unchecked PYCs for the embeddable distro to avoid zipimport restrictions. .. .. bpo: 35596 .. date: 2018-12-28-07-25-47 .. nonce: P9CEY2 .. section: Windows Fix vcruntime140.dll being added to embeddable distro multiple times. .. .. bpo: 35402 .. date: 2018-12-13-13-30-04 .. nonce: n_mXb2 .. section: Windows Update Windows build to use Tcl and Tk 8.6.9 .. .. bpo: 35401 .. date: 2018-12-10-15-01-13 .. nonce: 9L1onG .. section: Windows Updates Windows build to OpenSSL 1.1.0j .. .. bpo: 34977 .. date: 2018-12-07-10-00-38 .. nonce: agQJbD .. section: Windows venv on Windows will now use a python.exe redirector rather than copying the actual binaries from the base environment. .. .. bpo: 34977 .. date: 2018-10-30-13-39-17 .. nonce: 0l7_QV .. section: Windows Adds support for building a Windows App Store package .. .. bpo: 35067 .. date: 2018-10-25-11-29-22 .. nonce: RHWi7W .. section: Windows Remove _distutils_findvs module and use vswhere.exe instead. .. .. bpo: 32557 .. date: 2018-09-25-10-39-27 .. nonce: Rs1bf9 .. section: Windows Allow shutil.disk_usage to take a file path on Windows .. .. bpo: 34770 .. date: 2018-09-22-11-02-35 .. nonce: 4lEUOd .. section: Windows Fix a possible null pointer dereference in pyshellext.cpp. .. .. bpo: 34603 .. date: 2018-09-13-08-29-04 .. nonce: 2AB7sc .. section: Windows Fix returning structs from functions produced by MSVC .. .. bpo: 34581 .. date: 2018-09-04-23-13-19 .. nonce: lnbC0k .. section: Windows Guard MSVC-specific code in socketmodule.c with ``#ifdef _MSC_VER``. .. .. bpo: 34532 .. date: 2018-09-03-01-23-52 .. nonce: N1HEbE .. section: Windows Fixes exit code of list version arguments for py.exe. .. .. bpo: 34062 .. date: 2018-08-21-19-28-23 .. nonce: 3gxsA3 .. section: Windows Fixed the '--list' and '--list-paths' arguments for the py.exe launcher .. .. bpo: 34225 .. date: 2018-07-25-16-13-12 .. nonce: ngemNL .. section: Windows Ensure INCLUDE and LIB directories do not end with a backslash. .. .. bpo: 34011 .. date: 2018-07-11-15-58-06 .. nonce: Ho_d5T .. section: Windows A suite of code has been changed which copied across DLLs and init.tcl from the running Python location into a venv being created. These copies are needed only when running from a Python source build, and the copying code is now only run when that is the case, rather than whenever a venv is created. .. .. bpo: 34006 .. date: 2018-07-02-14-19-32 .. nonce: 7SgBT_ .. section: Windows Revert line length limit for Windows help docs. The line-length limit is not needed because the pages appear in a separate app rather than on a browser tab. It can also interact badly with the DPI setting. .. .. bpo: 31546 .. date: 2018-06-27-23-33-54 .. nonce: zJlap- .. section: Windows Restore running PyOS_InputHook while waiting for user input at the prompt. The restores integration of interactive GUI windows (such as Matplotlib figures) with the prompt on Windows. .. .. bpo: 30237 .. date: 2018-06-25-09-33-48 .. nonce: EybiZA .. section: Windows Output error when ReadConsole is canceled by CancelSynchronousIo instead of crashing. .. .. bpo: 33895 .. date: 2018-06-19-11-57-50 .. nonce: zpblTy .. section: Windows GIL is released while calling functions that acquire Windows loader lock. .. .. bpo: 33720 .. date: 2018-06-04-09-20-53 .. nonce: VKDXHK .. section: Windows Reduces maximum marshal recursion depth on release builds. .. .. bpo: 29097 .. date: 2018-05-16-11-31-17 .. nonce: 9mqEuI .. section: Windows Fix bug where :meth:`datetime.fromtimestamp` erroneously throws an :exc:`OSError` on Windows for values between 0 and 86400. Patch by Ammar Askar. .. .. bpo: 33316 .. date: 2018-04-20-03-24-07 .. nonce: 9IiJ8J .. section: Windows PyThread_release_lock always fails .. .. bpo: 33184 .. date: 2018-04-13-11-28-55 .. nonce: 7YhqQE .. section: Windows Update Windows installer to use OpenSSL 1.1.0h. .. .. bpo: 32890 .. date: 2018-03-08-20-02-38 .. nonce: 3jzFzY .. section: Windows Fix usage of GetLastError() instead of errno in os.execve() and os.truncate(). .. .. bpo: 33016 .. date: 2018-03-07-01-33-33 .. nonce: Z_Med0 .. section: Windows Fix potential use of uninitialized memory in nt._getfinalpathname .. .. bpo: 32903 .. date: 2018-02-28-11-03-24 .. nonce: 1SXY4t .. section: Windows Fix a memory leak in os.chdir() on Windows if the current directory is set to a UNC path. .. .. bpo: 32901 .. date: 2018-02-23-00-47-13 .. nonce: mGKz5_ .. section: Windows Update Tcl and Tk versions to 8.6.8 .. .. bpo: 31966 .. date: 2018-02-19-13-54-42 .. nonce: _Q3HPb .. section: Windows Fixed WindowsConsoleIO.write() for writing empty data. .. .. bpo: 32409 .. date: 2018-02-19-10-00-57 .. nonce: nocuDg .. section: Windows Ensures activate.bat can handle Unicode contents. .. .. bpo: 32457 .. date: 2018-02-19-08-54-06 .. nonce: vVP0Iz .. section: Windows Improves handling of denormalized executable path when launching Python. .. .. bpo: 32370 .. date: 2018-02-10-15-38-19 .. nonce: kcKuct .. section: Windows Use the correct encoding for ipconfig output in the uuid module. Patch by Segev Finer. .. .. bpo: 29248 .. date: 2018-02-07-17-50-48 .. nonce: Xzwj-6 .. section: Windows Fix :func:`os.readlink` on Windows, which was mistakenly treating the ``PrintNameOffset`` field of the reparse data buffer as a number of characters instead of bytes. Patch by Craig Holmquist and SSE4. .. .. bpo: 1104 .. date: 2017-11-24-12-53-54 .. nonce: 1CWSZp .. section: Windows Correctly handle string length in ``msilib.SummaryInfo.GetProperty()`` to prevent it from truncating the last character. .. .. bpo: 35401 .. date: 2018-12-09-13-56-49 .. nonce: n8B7X1 .. section: macOS Update macOS installer to use OpenSSL 1.1.0j. .. .. bpo: 35025 .. date: 2018-10-18-23-54-55 .. nonce: X4LFJg .. section: macOS Properly guard the use of the ``CLOCK_GETTIME`` et al. macros in ``timemodule`` on macOS. .. .. bpo: 24658 .. date: 2018-10-17-14-36-08 .. nonce: Naddgx .. section: macOS On macOS, fix reading from and writing into a file with a size larger than 2 GiB. .. .. bpo: 34405 .. date: 2018-09-11-08-30-55 .. nonce: UzIi0n .. section: macOS Update to OpenSSL 1.1.0i for macOS installer builds. .. .. bpo: 33635 .. date: 2018-07-31-09-51-01 .. nonce: KiscE- .. section: macOS In macOS stat on some file descriptors (/dev/fd/3 f.e) will result in bad file descriptor OSError. Guard against this exception was added in is_dir, is_file and similar methods. DirEntry.is_dir can also throw this exception so _RecursiveWildcardSelector._iterate_directories was also extended with the same error ignoring pattern. .. .. bpo: 13631 .. date: 2018-05-16-13-25-58 .. nonce: UIjDyY .. section: macOS The .editrc file in user's home directory is now processed correctly during the readline initialization through editline emulation on macOS. .. .. bpo: 33184 .. date: 2018-04-07-00-51-34 .. nonce: 3j208P .. section: macOS Update macOS installer build to use OpenSSL 1.1.0h. .. .. bpo: 32726 .. date: 2018-03-29-06-56-12 .. nonce: urS9uX .. section: macOS Build and link with private copy of Tcl/Tk 8.6 for the macOS 10.6+ installer. The 10.9+ installer variant already does this. This means that the Python 3.7 provided by the python.org macOS installers no longer need or use any external versions of Tcl/Tk, either system-provided or user-installed, such as ActiveTcl. .. .. bpo: 32901 .. date: 2018-02-27-17-33-15 .. nonce: hQu0w3 .. section: macOS Update macOS 10.9+ installer to Tcl/Tk 8.6.8. .. .. bpo: 31903 .. date: 2017-11-01-16-53-12 .. nonce: K6jCVG .. section: macOS In :mod:`_scproxy`, drop the GIL when calling into ``SystemConfiguration`` to avoid deadlocks. .. .. bpo: 35770 .. date: 2019-01-18-13-04-30 .. nonce: 2LxJGu .. section: IDLE IDLE macosx deletes Options => Configure IDLE. It previously deleted Window => Zoom Height by mistake. (Zoom Height is now on the Options menu). On Mac, the settings dialog is accessed via Preferences on the IDLE menu. .. .. bpo: 35769 .. date: 2019-01-18-01-24-23 .. nonce: GqsB34 .. section: IDLE Change IDLE's new file name from 'Untitled' to 'untitled' .. .. bpo: 35660 .. date: 2019-01-04-19-14-29 .. nonce: hMxI7N .. section: IDLE Fix imports in idlelib.window. .. .. bpo: 35641 .. date: 2019-01-02-22-15-01 .. nonce: QEaANl .. section: IDLE Proper format ``calltip`` when the function has no docstring. .. .. bpo: 33987 .. date: 2018-12-31-17-04-18 .. nonce: fD92up .. section: IDLE Use ttk Frame for ttk widgets. .. .. bpo: 34055 .. date: 2018-12-28-17-16-33 .. nonce: TmmpzR .. section: IDLE Fix erroneous 'smart' indents and newlines in IDLE Shell. .. .. bpo: 35591 .. date: 2018-12-28-01-19-20 .. nonce: SFpDj2 .. section: IDLE Find Selection now works when selection not found. .. .. bpo: 35196 .. date: 2018-12-27-17-46-42 .. nonce: 9E-xUh .. section: IDLE Speed up squeezer line counting. .. .. bpo: 35598 .. date: 2018-12-27-15-29-11 .. nonce: FWOOm8 .. section: IDLE Update config_key: use PEP 8 names and ttk widgets, make some objects global, and add tests. .. .. bpo: 28097 .. date: 2018-12-26-13-53-34 .. nonce: 95I9NT .. section: IDLE Add Previous/Next History entries to Shell menu. .. .. bpo: 35208 .. date: 2018-12-23-17-42-11 .. nonce: J5NOg7 .. section: IDLE Squeezer now properly counts wrapped lines before newlines. .. .. bpo: 35555 .. date: 2018-12-21-18-44-30 .. nonce: M58_K3 .. section: IDLE Gray out Code Context menu entry when it's not applicable. .. .. bpo: 35521 .. date: 2018-12-20-00-14-15 .. nonce: x32BRn .. section: IDLE Document the IDLE editor code context feature. Add some internal references within the IDLE doc. .. .. bpo: 22703 .. date: 2018-12-18-13-56-31 .. nonce: UlsjKQ .. section: IDLE The Code Context menu label now toggles between Show/Hide Code Context. The Zoom Height menu now toggles between Zoom/Restore Height. Zoom Height has moved from the Window menu to the Options menu. .. .. bpo: 35213 .. date: 2018-11-12-00-20-01 .. nonce: cqNgzT .. section: IDLE Where appropriate, use 'macOS' in idlelib. .. .. bpo: 34864 .. date: 2018-11-11-17-13-50 .. nonce: cw0PvO .. section: IDLE On macOS, warn if the system preference "Prefer tabs when opening documents" is set to "Always". .. .. bpo: 34864 .. date: 2018-11-10-21-27-25 .. nonce: Ci-G2q .. section: IDLE Document two IDLE on MacOS issues. The System Preferences Dock "prefer tabs always" setting disables some IDLE features. Menus are a bit different than as described for Windows and Linux. .. .. bpo: 35202 .. date: 2018-11-10-09-10-54 .. nonce: TeJJrt .. section: IDLE Remove unused imports from lib/idlelib .. .. bpo: 33000 .. date: 2018-11-06-23-10-54 .. nonce: pQasCt .. section: IDLE Document that IDLE's shell has no line limit. A program that runs indefinitely can overfill memory. .. .. bpo: 23220 .. date: 2018-11-05-23-23-00 .. nonce: H3SAWE .. section: IDLE Explain how IDLE's Shell displays output. .. .. bpo: 35099 .. date: 2018-11-05-20-43-08 .. nonce: SVOZXC .. section: IDLE Improve the doc about IDLE running user code. The section is renamed from "IDLE -- console differences" is renamed "Running user code". It mostly covers the implications of using custom :samp:`sys.std{xxx}` objects. .. .. bpo: 35097 .. date: 2018-10-28-20-17-14 .. nonce: 07tm66 .. section: IDLE Add IDLE doc subsection explaining editor windows. Topics include opening, title and status bar, .py* extension, and running. .. .. bpo: 35093 .. date: 2018-10-28-15-53-51 .. nonce: cH-tli .. section: IDLE Document the IDLE document viewer in the IDLE doc. Add a paragraph in "Help and preferences", "Help sources" subsection. .. .. bpo: 35088 .. date: 2018-10-28-00-54-32 .. nonce: r1lJZd .. section: IDLE Update idlelib.help.copy_string docstring. We now use git and backporting instead of hg and forward merging. .. .. bpo: 35087 .. date: 2018-10-28-00-08-42 .. nonce: G7gx2- .. section: IDLE Update idlelib help files for the current doc build. The main change is the elimination of chapter-section numbers. .. .. bpo: 34548 .. date: 2018-09-22-20-25-07 .. nonce: 7pBzjg .. section: IDLE Use configured color theme for read-only text views. .. .. bpo: 1529353 .. date: 2018-08-13-16-31-24 .. nonce: wXfQJk .. section: IDLE Enable "squeezing" of long outputs in the shell, to avoid performance degradation and to clean up the history without losing it. Squeezed outputs may be copied, viewed in a separate window, and "unsqueezed". .. .. bpo: 34047 .. date: 2018-08-05-15-49-55 .. nonce: LGKsIm .. section: IDLE Fixed mousewheel scrolling direction on macOS. .. .. bpo: 34275 .. date: 2018-08-02-22-16-42 .. nonce: Iu0d7t .. section: IDLE Make IDLE calltips always visible on Mac. Some MacOS-tk combinations need .update_idletasks(). Patch by Kevin Walzer. .. .. bpo: 34120 .. date: 2018-08-01-23-25-38 .. nonce: HgsIz- .. section: IDLE Fix unresponsiveness after closing certain windows and dialogs. .. .. bpo: 33975 .. date: 2018-06-26-22-53-14 .. nonce: Ow7alv .. section: IDLE Avoid small type when running htests. Since part of the purpose of human-viewed tests is to determine that widgets look right, it is important that they look the same for testing as when running IDLE. .. .. bpo: 33905 .. date: 2018-06-21-20-35-33 .. nonce: W2mhiY .. section: IDLE Add test for idlelib.stackview.StackBrowser. .. .. bpo: 33924 .. date: 2018-06-20-22-14-07 .. nonce: 6Rz1wt .. section: IDLE Change mainmenu.menudefs key 'windows' to 'window'. Every other menudef key is lowercase version of main menu entry. .. .. bpo: 33906 .. date: 2018-06-20-19-16-24 .. nonce: a1lXq0 .. section: IDLE Rename idlelib.windows as window Match Window on the main menu and remove last plural module name. .. .. bpo: 33917 .. date: 2018-06-20-16-27-48 .. nonce: ZXHs8x .. section: IDLE Fix and document idlelib/idle_test/template.py. The revised file compiles, runs, and tests OK. idle_test/README.txt explains how to use it to create new IDLE test files. .. .. bpo: 33904 .. date: 2018-06-20-12-40-54 .. nonce: qm0eCu .. section: IDLE IDLE: In rstrip, rename class RstripExtension as Rstrip .. .. bpo: 33907 .. date: 2018-06-19-22-21-27 .. nonce: z-_B3N .. section: IDLE For consistency and clarity, rename an IDLE module and classes. Module calltips and its class CallTips are now calltip and Calltip. In module calltip_w, class CallTip is now CalltipWindow. .. .. bpo: 33856 .. date: 2018-06-16-21-54-45 .. nonce: TH8WHU .. section: IDLE Add "help" in the welcome message of IDLE .. .. bpo: 33839 .. date: 2018-06-14-13-23-55 .. nonce: ZlJzHa .. section: IDLE IDLE: refactor ToolTip and CallTip and add documentation and tests .. .. bpo: 33855 .. date: 2018-06-14-11-35-50 .. nonce: XL230W .. section: IDLE Minimally test all IDLE modules. Add missing files, import module, instantiate classes, and check coverage. Check existing files. .. .. bpo: 33656 .. date: 2018-06-10-17-59-36 .. nonce: 60ZqJS .. section: IDLE On Windows, add API call saying that tk scales for DPI. On Windows 8.1+ or 10, with DPI compatibility properties of the Python binary unchanged, and a monitor resolution greater than 96 DPI, this should make text and lines sharper. It should otherwise have no effect. .. .. bpo: 33768 .. date: 2018-06-04-19-23-11 .. nonce: I_2qpV .. section: IDLE Clicking on a context line moves that line to the top of the editor window. .. .. bpo: 33763 .. date: 2018-06-03-20-12-57 .. nonce: URiFlE .. section: IDLE IDLE: Use read-only text widget for code context instead of label widget. .. .. bpo: 33664 .. date: 2018-06-03-09-13-28 .. nonce: PZzQyL .. section: IDLE Scroll IDLE editor text by lines. Previously, the mouse wheel and scrollbar slider moved text by a fixed number of pixels, resulting in partial lines at the top of the editor box. The change also applies to the shell and grep output windows, but not to read-only text views. .. .. bpo: 33679 .. date: 2018-05-29-07-14-37 .. nonce: MgX_Ui .. section: IDLE Enable theme-specific color configuration for Code Context. Use the Highlights tab to see the setting for built-in themes or add settings to custom themes. .. .. bpo: 33642 .. date: 2018-05-24-20-42-44 .. nonce: J0VQbS .. section: IDLE Display up to maxlines non-blank lines for Code Context. If there is no current context, show a single blank line. .. .. bpo: 33628 .. date: 2018-05-23-19-51-07 .. nonce: sLlFLO .. section: IDLE IDLE: Cleanup codecontext.py and its test. .. .. bpo: 33564 .. date: 2018-05-17-19-41-12 .. nonce: XzHZJe .. section: IDLE IDLE's code context now recognizes async as a block opener. .. .. bpo: 21474 .. date: 2018-04-29-16-13-02 .. nonce: bglg-F .. section: IDLE Update word/identifier definition from ascii to unicode. In text and entry boxes, this affects selection by double-click, movement left/right by control-left/right, and deletion left/right by control-BACKSPACE/DEL. .. .. bpo: 33204 .. date: 2018-04-02-00-28-13 .. nonce: NBsuIv .. section: IDLE IDLE: consistently color invalid string prefixes. A 'u' string prefix cannot be paired with either 'r' or 'f'. Consistently color as much of the prefix, starting at the right, as is valid. Revise and extend colorizer test. .. .. bpo: 32984 .. date: 2018-03-05-01-29-05 .. nonce: NGjgT4 .. section: IDLE Set ``__file__`` while running a startup file. Like Python, IDLE optionally runs one startup file in the Shell window before presenting the first interactive input prompt. For IDLE, ``-s`` runs a file named in environmental variable :envvar:`IDLESTARTUP` or :envvar:`PYTHONSTARTUP`; ``-r file`` runs ``file``. Python sets ``__file__`` to the startup file name before running the file and unsets it before the first prompt. IDLE now does the same when run normally, without the ``-n`` option. .. .. bpo: 32940 .. date: 2018-02-24-18-20-50 .. nonce: ZaJ1Rf .. section: IDLE Simplify and rename StringTranslatePseudoMapping in pyparse. .. .. bpo: 32916 .. date: 2018-02-23-07-32-36 .. nonce: 4MsQ5F .. section: IDLE Change ``str`` to ``code`` in pyparse. .. .. bpo: 32905 .. date: 2018-02-22-00-09-27 .. nonce: VlXj0x .. section: IDLE Remove unused code in pyparse module. .. .. bpo: 32874 .. date: 2018-02-19-10-56-41 .. nonce: 6pZ9Gv .. section: IDLE Add tests for pyparse. .. .. bpo: 32837 .. date: 2018-02-12-17-22-48 .. nonce: -33QPl .. section: IDLE Using the system and place-dependent default encoding for open() is a bad idea for IDLE's system and location-independent files. .. .. bpo: 32826 .. date: 2018-02-12-11-05-22 .. nonce: IxNZrk .. section: IDLE Add "encoding=utf-8" to open() in IDLE's test_help_about. GUI test test_file_buttons() only looks at initial ascii-only lines, but failed on systems where open() defaults to 'ascii' because readline() internally reads and decodes far enough ahead to encounter a non-ascii character in CREDITS.txt. .. .. bpo: 32831 .. date: 2018-02-12-08-08-45 .. nonce: srDRvU .. section: IDLE Add docstrings and tests for codecontext. .. .. bpo: 32765 .. date: 2018-02-04-17-52-54 .. nonce: qm0eCu .. section: IDLE Update configdialog General tab docstring to add new widgets to the widget list. .. .. bpo: 35884 .. date: 2019-02-01-12-22-37 .. nonce: hJkMRD .. section: Tools/Demos Add a benchmark script for timing various ways to access variables: ``Tools/scripts/var_access_benchmark.py``. .. .. bpo: 34989 .. date: 2018-10-15-13-22-28 .. nonce: hU4fra .. section: Tools/Demos python-gdb.py now handles errors on computing the line number of a Python frame. .. .. bpo: 20260 .. date: 2018-07-24-00-11-44 .. nonce: klmmqI .. section: Tools/Demos Argument Clinic now has non-bitwise unsigned int converters. .. .. bpo: 32962 .. date: 2018-06-14-16-23-07 .. nonce: Q3Dwns .. section: Tools/Demos python-gdb now catches ``UnicodeDecodeError`` exceptions when calling ``string()``. .. .. bpo: 32962 .. date: 2018-06-14-16-16-53 .. nonce: 2YfdwI .. section: Tools/Demos python-gdb now catches ValueError on read_var(): when Python has no debug symbols for example. .. .. bpo: 33189 .. date: 2018-04-03-18-10-00 .. nonce: QrXR00 .. section: Tools/Demos :program:`pygettext.py` now recognizes only literal strings as docstrings and translatable strings, and rejects bytes literals and f-string expressions. .. .. bpo: 31920 .. date: 2018-03-26-18-54-24 .. nonce: u_WKsT .. section: Tools/Demos Fixed handling directories as arguments in the ``pygettext`` script. Based on patch by Oleg Krasnikov. .. .. bpo: 29673 .. date: 2018-03-16-17-25-05 .. nonce: m8QtaW .. section: Tools/Demos Fix pystackv and pystack gdbinit macros. .. .. bpo: 25427 .. date: 2018-03-02-16-23-31 .. nonce: 1mgMOG .. section: Tools/Demos Remove the pyvenv script in favor of ``python3 -m venv`` in order to lower confusion as to what Python interpreter a virtual environment will be created for. .. .. bpo: 32885 .. date: 2018-02-20-12-16-47 .. nonce: dL5x7C .. section: Tools/Demos Add an ``-n`` flag for ``Tools/scripts/pathfix.py`` to disable automatic backup creation (files with ``~`` suffix). .. .. bpo: 32222 .. date: 2017-12-07-20-51-20 .. nonce: hPBcGT .. section: Tools/Demos Fix pygettext not extracting docstrings for functions with type annotated arguments. Patch by Toby Harradine. .. .. bpo: 31583 .. date: 2017-09-26-10-11-21 .. nonce: TM90_H .. section: Tools/Demos Fix 2to3 for using with --add-suffix option but without --output-dir option for relative path to files in current directory. .. .. bpo: 35713 .. date: 2019-01-22-17-04-10 .. nonce: fmehdG .. section: C API The :c:func:`!PyByteArray_Init` and :c:func:`!PyByteArray_Fini` functions have been removed. They did nothing since Python 2.7.4 and Python 3.2.0, were excluded from the limited API (stable ABI), and were not documented. .. .. bpo: 33817 .. date: 2019-01-11-11-16-16 .. nonce: nJ4yIj .. section: C API Fixed :c:func:`_PyBytes_Resize` for empty bytes objects. .. .. bpo: 35322 .. date: 2018-11-28-03-20-36 .. nonce: Qcqsag .. section: C API Fix memory leak in :c:func:`PyUnicode_EncodeLocale` and :c:func:`PyUnicode_EncodeFSDefault` on error handling. .. .. bpo: 35059 .. date: 2018-11-23-11-52-34 .. nonce: BLSp6y .. section: C API The following C macros have been converted to static inline functions: :c:func:`Py_INCREF`, :c:func:`Py_DECREF`, :c:func:`Py_XINCREF`, :c:func:`Py_XDECREF`, :c:func:`PyObject_INIT`, :c:func:`PyObject_INIT_VAR`. .. .. bpo: 35296 .. date: 2018-11-22-18-34-23 .. nonce: nxrIQt .. section: C API ``make install`` now also installs the internal API: ``Include/internal/*.h`` header files. .. .. bpo: 35081 .. date: 2018-11-22-18-15-46 .. nonce: FdK9mV .. section: C API Internal APIs surrounded by ``#ifdef Py_BUILD_CORE`` have been moved from ``Include/*.h`` headers to new header files ``Include/internal/pycore_*.h``. .. .. bpo: 35259 .. date: 2018-11-22-13-52-36 .. nonce: p07c61 .. section: C API Conditionally declare :c:func:`Py_FinalizeEx()` (new in 3.6) based on Py_LIMITED_API. Patch by Arthur Neufeld. .. .. bpo: 35081 .. date: 2018-11-13-12-13-04 .. nonce: gFd85N .. section: C API The :c:func:`!_PyObject_GC_TRACK` and :c:func:`!_PyObject_GC_UNTRACK` macros have been removed from the public C API. .. .. bpo: 35134 .. date: 2018-11-01-13-58-37 .. nonce: SbZo0o .. section: C API Creation of a new ``Include/cpython/`` subdirectory. .. .. bpo: 34725 .. date: 2018-10-13-16-30-54 .. nonce: j52rIS .. section: C API Adds _Py_SetProgramFullPath so embedders may override sys.executable .. .. bpo: 34910 .. date: 2018-10-05-17-06-49 .. nonce: tSFrls .. section: C API Ensure that :c:func:`PyObject_Print` always returns ``-1`` on error. Patch by Zackery Spytz. .. .. bpo: 34523 .. date: 2018-08-29-18-48-47 .. nonce: lLQ8rh .. section: C API Py_DecodeLocale() and Py_EncodeLocale() now use the UTF-8 encoding on Windows if Py_LegacyWindowsFSEncodingFlag is zero. .. .. bpo: 34193 .. date: 2018-07-24-11-57-35 .. nonce: M6ch1Q .. section: C API Fix pluralization in TypeError messages in getargs.c and typeobject.c: '1 argument' instead of '1 arguments' and '1 element' instead of '1 elements'. .. .. bpo: 34127 .. date: 2018-07-22-14-58-06 .. nonce: qkfnHO .. section: C API Return grammatically correct error message based on argument count. Patch by Karthikeyan Singaravelan. .. .. bpo: 23927 .. date: 2018-07-09-11-39-54 .. nonce: pDFkxb .. section: C API Fixed :exc:`SystemError` in :c:func:`PyArg_ParseTupleAndKeywords` when the ``w*`` format unit is used for optional parameter. .. .. bpo: 32455 .. date: 2018-07-08-12-06-18 .. nonce: KVHlkz .. section: C API Added :c:func:`PyCompile_OpcodeStackEffectWithJump`. .. .. bpo: 34008 .. date: 2018-07-02-10-58-11 .. nonce: COewz- .. section: C API Py_Main() can again be called after Py_Initialize(), as in Python 3.6. .. .. bpo: 32500 .. date: 2018-06-21-17-19-31 .. nonce: WGCNad .. section: C API Fixed error messages for :c:func:`PySequence_Size`, :c:func:`PySequence_GetItem`, :c:func:`PySequence_SetItem` and :c:func:`PySequence_DelItem` called with a mapping and :c:func:`PyMapping_Size` called with a sequence. .. .. bpo: 33818 .. date: 2018-06-10-09-42-31 .. nonce: 50nlf3 .. section: C API :c:func:`PyExceptionClass_Name` will now return ``const char *`` instead of ``char *``. .. .. bpo: 33042 .. date: 2018-03-20-21-43-09 .. nonce: FPFp64 .. section: C API Embedding applications may once again call PySys_ResetWarnOptions, PySys_AddWarnOption, and PySys_AddXOption prior to calling Py_Initialize. .. .. bpo: 32374 .. date: 2018-01-09-17-03-54 .. nonce: SwwLoz .. section: C API Document that m_traverse for multi-phase initialized modules can be called with m_state=NULL, and add a sanity check .. .. bpo: 30863 .. date: 2017-10-12-23-24-27 .. nonce: xrED19 .. section: C API :c:func:`PyUnicode_AsWideChar` and :c:func:`PyUnicode_AsWideCharString` no longer cache the ``wchar_t*`` representation of string objects.