IDLE (Python 3.6 32-bit)

+++++++++++ Python News +++++++++++ What's New in Python 3.6.4 final? ================================= *Release date: 2017-12-18* There were no new code changes in version 3.6.4 since v3.6.4rc1. What's New in Python 3.6.4 release candidate 1? =============================================== *Release date: 2017-12-05* Core and Builtins ----------------- - bpo-32176: co_flags.CO_NOFREE is now always set correctly by the code object constructor based on freevars and cellvars, rather than needing to be set correctly by the caller. This ensures it will be cleared automatically when additional cell references are injected into a modified code object and function. - bpo-31949: Fixed several issues in printing tracebacks (PyTraceBack_Print()). * Setting sys.tracebacklimit to 0 or less now suppresses printing tracebacks. * Setting sys.tracebacklimit to None now causes using the default limit. * Setting sys.tracebacklimit to an integer larger than LONG_MAX now means using the limit LONG_MAX rather than the default limit. * Fixed integer overflows in the case of more than 2**31 traceback items on Windows. * Fixed output errors handling. - bpo-30696: Fix the interactive interpreter looping endlessly when no memory. - bpo-20047: Bytearray methods partition() and rpartition() now accept only bytes-like objects as separator, as documented. In particular they now raise TypeError rather of returning a bogus result when an integer is passed as a separator. - bpo-31852: Fix a segmentation fault caused by a combination of the async soft keyword and continuation lines. - bpo-21720: BytesWarning no longer emitted when the *fromlist* argument of ``__import__()`` or the ``__all__`` attribute of the module contain bytes instances. - bpo-31825: Fixed OverflowError in the 'unicode-escape' codec and in codecs.escape_decode() when decode an escaped non-ascii byte. - bpo-28603: Print the full context/cause chain of exceptions on interpreter exit, even if an exception in the chain is unhashable or compares equal to later ones. Patch by Zane Bitter. - bpo-31786: Fix timeout rounding in the select module to round correctly negative timeouts between -1.0 and 0.0. The functions now block waiting for events as expected. Previously, the call was incorrectly non-blocking. Patch by Pablo Galindo. - bpo-31642: Restored blocking "from package import module" by setting sys.modules["package.module"] to None. - bpo-31626: Fixed a bug in debug memory allocator. There was a write to freed memory after shrinking a memory block. - bpo-31619: Fixed a ValueError when convert a string with large number of underscores to integer with binary base. - bpo-31592: Fixed an assertion failure in Python parser in case of a bad `unicodedata.normalize()`. Patch by Oren Milman. - bpo-31588: Raise a `TypeError` with a helpful error message when class creation fails due to a metaclass with a bad ``__prepare__()`` method. Patch by Oren Milman. - bpo-31566: Fix an assertion failure in `_warnings.warn()` in case of a bad ``__name__`` global. Patch by Oren Milman. - bpo-31505: Fix an assertion failure in `json`, in case `_json.make_encoder()` received a bad `encoder()` argument. Patch by Oren Milman. - bpo-31492: Fix assertion failures in case of failing to import from a module with a bad ``__name__`` attribute, and in case of failing to access an attribute of such a module. Patch by Oren Milman. - bpo-31490: Fix an assertion failure in `ctypes` class definition, in case the class has an attribute whose name is specified in ``_anonymous_`` but not in ``_fields_``. Patch by Oren Milman. - bpo-31478: Fix an assertion failure in `_random.Random.seed()` in case the argument has a bad ``__abs__()`` method. Patch by Oren Milman. - bpo-31315: Fix an assertion failure in imp.create_dynamic(), when spec.name is not a string. Patch by Oren Milman. - bpo-31311: Fix a crash in the ``__setstate__()`` method of `ctypes._CData`, in case of a bad ``__dict__``. Patch by Oren Milman. - bpo-31293: Fix crashes in true division and multiplication of a timedelta object by a float with a bad as_integer_ratio() method. Patch by Oren Milman. - bpo-31285: Fix an assertion failure in `warnings.warn_explicit`, when the return value of the received loader's get_source() has a bad splitlines() method. Patch by Oren Milman. - bpo-30817: `PyErr_PrintEx()` clears now the ignored exception that may be raised by `_PySys_SetObjectId()`, for example when no memory. Library ------- - bpo-28556: Two minor fixes for ``typing`` module: allow shallow copying instances of generic classes, improve interaction of ``__init_subclass__`` with generics. Original PRs by Ivan Levkivskyi. - bpo-27240: The header folding algorithm for the new email policies has been rewritten, which also fixes bpo-30788, bpo-31831, and bpo-32182. In particular, RFC2231 folding is now done correctly. - bpo-32186: io.FileIO.readall() and io.FileIO.read() now release the GIL when getting the file size. Fixed hang of all threads with inaccessible NFS server. Patch by Nir Soffer. - bpo-12239: Make :meth:`msilib.SummaryInformation.GetProperty` return ``None`` when the value of property is ``VT_EMPTY``. Initial patch by Mark Mc Mahon. - bpo-31325: Fix wrong usage of :func:`collections.namedtuple` in the :meth:`RobotFileParser.parse() <urllib.robotparser.RobotFileParser.parse>` method. Initial patch by Robin Wellner. - bpo-12382: :func:`msilib.OpenDatabase` now raises a better exception message when it couldn't open or create an MSI file. Initial patch by William Tisäter. - bpo-32110: ``codecs.StreamReader.read(n)`` now returns not more than *n* characters/bytes for non-negative *n*. This makes it compatible with ``read()`` methods of other file-like objects. - bpo-32072: Fixed issues with binary plists: * Fixed saving bytearrays. * Identical objects will be saved only once. * Equal references will be load as identical objects. * Added support for saving and loading recursive data structures. - bpo-32034: Make asyncio.IncompleteReadError and LimitOverrunError pickleable. - bpo-32015: Fixed the looping of asyncio in the case of reconnection the socket during waiting async read/write from/to the socket. - bpo-32011: Restored support of loading marshal files with the TYPE_INT64 code. These files can be produced in Python 2.7. - bpo-31970: Reduce performance overhead of asyncio debug mode. - bpo-9678: Fixed determining the MAC address in the uuid module: * Using ifconfig on NetBSD and OpenBSD. * Using arp on Linux, FreeBSD, NetBSD and OpenBSD. Based on patch by Takayuki Shimizukawa. - bpo-30057: Fix potential missed signal in signal.signal(). - bpo-31933: Fix Blake2 params leaf_size and node_offset on big endian platforms. Patch by Jack O'Connor. - bpo-31927: Fixed compilation of the socket module on NetBSD 8. Fixed assertion failure or reading arbitrary data when parse a AF_BLUETOOTH address on NetBSD and DragonFly BSD. - bpo-27666: Fixed stack corruption in curses.box() and curses.ungetmouse() when the size of types chtype or mmask_t is less than the size of C long. curses.box() now accepts characters as arguments. Based on patch by Steve Fink. - bpo-31897: plistlib now catches more errors when read binary plists and raises InvalidFileException instead of unexpected exceptions. - bpo-25720: Fix the method for checking pad state of curses WINDOW. Patch by Masayuki Yamamoto. - bpo-31893: Fixed the layout of the kqueue_event structure on OpenBSD and NetBSD. Fixed the comparison of the kqueue_event objects. - bpo-31891: Fixed building the curses module on NetBSD. - bpo-28416: